ONE CONSTELLATION CENTRE THIS AGREEMENT OF LEASE (the "Lease") is made this 28th day of September, 1998, by and between ST. BARNABAS LIMITED PARTNERSHIP, a Maryland limited partnership ("Landlord") and CONSTELLATION PROPERTIES, INC., a Maryland corporation ("Tenant"), WITNESSETH that the parties hereby agree as follows: 1. Premises. Landlord is the owner of the One Constellation Centre Office Building (the "Building"), an office building located at 6009 Oxon Hill Road, Oxon Hill, Maryland 20745. Landlord does hereby lease unto Tenant, and Tenant does hereby rent from Landlord, that portion of the Building located on the fourth, fifth and sixth floors designated as Suites 400, 500 and 600 containing the agreed upon equivalent of 48,863 square feet of rentable area (the "Premises") described on the schedule attached hereto as Exhibit "A" and made a part hereof. In addition thereto, Tenant shall have the right to use, on a non-exclusive basis, and in common with the other tenants of the Building the Common Areas of the Building (as that term is defined in Section 5.2.6 hereof). 2. Term. This Lease shall commence on September 28, 1998 (the "Commencement Date") and shall be for a term (the "Term") of two (2) years, expiring on September 28, 2000. 3. Security Deposit and Advance Rent. Intentionally Left Blank. 4. Use. Tenant shall have the right to use and occupy the Premises of this Lease, if at all, solely for general office purposes in accordance with applicable zoning regulations and for no other purpose. 5. Rent. 5.1 Base Rent. As rent for the Premises during each year of the Term, Tenant shall pay to Landlord an annual base rent of Nine Hundred Three Thousand Nine Hundred Sixty-Five Dollars and Fifty-Two Cents ($903,965.52) (the "Base Rent") in equal monthly installments of Seventy-Five Thousand Three Hundred Thirty Dollars and Forty-Six Cents ($75,330.46) each, in advance on the first day of each calendar month during the Term, and without deduction, setoff or demand. 5.2 Definitions. For the purposes hereof, the following definitions shall apply: 1 5.2.1 "Property" shall mean the Building, the land upon which same is situated and all fixtures and equipment thereon or therein, all commonly owned or shared appurtenances, including but not limited to, parking areas, walkways, landscaping and utilities, whether located on the land upon which the Building is situated or elsewhere. 5.2.2 "Building Expenses" shall be all those expenses paid or incurred by Landlord in connection with the owning, maintaining, operating and repairing of the Property or any part thereof, in a manner deemed reasonable and appropriate by Landlord and shall include, without limitation, the following: 1. All costs and expenses of operating, repairing, lighting, cleaning, and insuring (including liability for personal injury, death and property damage and workers' compensation insurance covering personnel) the Property or any part thereof, as well as all costs incurred in removing snow, ice and debris therefrom and of policing and regulating traffic with respect thereto, and depreciation of all machinery and equipment used therein or thereon, replacing or repairing of pavement, parking areas, curbs, walkways, drainage, lighting facilities, landscaping (including replanting and replacing flowers and other planting); 2. Electricity, steam and fuel used in lighting, heating, ventilating and air conditioning; 3. Maintenance and repair of mechanical and electrical equipment including heating, ventilating and air conditioning equipment; 4. Window cleaning and janitor service, including equipment, uniforms, and supplies and sundries; 5. Maintenance of elevators, stairways, rest rooms, lobbies, hallways and other Common Areas; 6. Repainting and redecoration of all Common Areas; 7. Sales or use taxes on supplies or services; 8. Management fees, wages, salaries and compensation of all persons engaged in the maintenance, operation or repair of the Property (including Landlord's share of all payroll taxes); 9. Legal, accounting and engineering fees and expenses, except for those related to disputes with tenants or which are a result of and/or are based on Landlord's negligence or other tortious conduct; 2 10. Costs and expenses that may result from compliance with any governmental laws or regulations that were not applicable to the Common Areas at the time same were originally constructed; 11. Condominium fees and assessments paid to Constellation Centre Condominium; and 12. All other expenses which under generally accepted accounting principles would be considered as an expense of maintaining, operating, or repairing the Property. Notwithstanding the foregoing, all expenses (whether or not such expenses are enumerated on items 1 through 11 of this Section 5.2.2) which would be considered capital in nature under generally accepted accounting principles shall be excluded from "Building Expenses." 5.2.3 "Taxes" shall mean all real property taxes including currently due installments of assessments, sewer rents, ad valorem charges, water rates, rents and charges, front foot benefit charges, and all other governmental impositions in the nature of any of the foregoing. Excluded from Taxes are (i) federal, state or local income taxes, (ii) franchise, gift, transfer, excise, capital stock, estate or inheritance taxes, and (iii) penalties or interest charged for late payment of Taxes. If at any time during the Term the method of taxation prevailing at the commencement of the Term shall be altered so as to cause the whole or any part of the items listed in the first sentence of this subparagraph 5.2.3 to be levied, assessed or imposed, wholly or partly as a capital levy, or otherwise, on the rents received from the Building, wholly or partly in lieu of imposition of or in addition to the increase of taxes in the nature of real estate taxes issued against the Property, then the charge to the Landlord resulting from such altered additional method of taxation shall be deemed to be within the definition of "Taxes." 5.2.4 "Base Year Building Expenses" shall mean the actual Building Expenses incurred by Landlord during 1998 per rentable square foot. 5.2.5 "Base Year Taxes" shall mean the actual Taxes incurred by Landlord during the 1998-1999 tax year per rentable square foot. 5.2.6 "Common Areas" shall mean those areas and facilities which may be from time to time furnished to the Building by Landlord for the non-exclusive general common use of tenants and other occupants of the Building, their officers, employees, and invitees, including (without limitation) the hallways, stairs, parking facilities, washrooms, and elevators. 5.3 Rent Adjustments for Taxes. 5.3.1 At or after the time that Taxes are due and payable, Landlord shall total the Taxes and shall allocate such Taxes to the rentable area within the Building in the following 3 manner: Taxes shall be totaled and such total shall be divided by the total rentable square feet in the Building thereby deriving the "Cost of Taxes Per Square Foot" of rentable area. 5.3.2 In the event that the Cost of Taxes Per Square Foot assessed for any tax year which is wholly or partly within the Term are greater than the Base Year Taxes, Tenant shall pay to Landlord, as additional rent at the time such Taxes are due and payable, the amount of such excess times the number of rentable square feet in the Premises. Any additional rent due Landlord under this Section 5.3 shall be due and payable within thirty (30) days after Landlord shall have submitted a written statement to Tenant showing the amount due. Landlord may, in its discretion, make a reasonable estimate of such additional rent with respect to Taxes, and require Tenant to pay each month during such year 1/12 of such amount, at the time of payment of monthly installments of Base Rent. In such event, Tenant shall pay, or Landlord shall refund or credit to Tenant's account, any underpayment or overpayment of such additional rent within thirty (30) days of Landlord's annual written statement of Taxes due. Tenant shall have the right to examine, at Tenant's sole expense, Landlord's records with respect to any such increases in rent; provided, however, that unless Tenant shall have given Landlord written notice of exception to any such statement within thirty (30) days after delivery thereof, the same shall be conclusive and binding on Tenant. No credit shall be given to Tenant if the cost of Taxes Per Square Foot are less than the Base Year Taxes. As of the date of this Lease, the tax year is a fiscal year commencing July 1. If the appropriate authorities shall hereafter change the tax year to a calendar year, or to a fiscal year commencing on a date other than July 1, appropriate adjustments shall be made in the computation of any additional rent due hereunder. All reasonable expenses incurred by Landlord (including attorneys', appraisers' and consultants' fees, and other costs) in contesting any increase in Taxes or any increase in the assessment of the Property shall be included as an item of Taxes for the purpose of computing additional rent due hereunder. 5.4 Rent Adjustments for Building Expenses. 5.4.1 After the end of each calendar year, Landlord shall compute the Building Expenses for such year and shall allocate such costs to the rentable area within the Building in the following manner: Building Expenses shall be totaled and such total shall be divided by the total rentable square feet in the Building thereby deriving the "Cost of Building Expenses Per Square Foot" of rentable area. 5.4.2 In the event that the cost of Building Expenses Per Square Foot of rentable area for any year which is wholly or partly within the Term are greater than the Base Year Building Expenses, Tenant shall pay to Landlord, as additional rent, the amount of such excess times the number of rentable square feet in the Premises, as set forth in Section 1 above. If 4 occupancy of the Building during any calendar year is less than ninety percent (90%), then Building Expenses for that calendar year shall be "grossed up" to that amount of Building Expenses that, using reasonable projections, would normally be expected to be incurred during the calendar year in question if the Building was ninety percent (90%) occupied during the applicable calendar year period, as determined under generally accepted accounting principles; it being understood that the written statement submitted to Tenant shall provide a reasonably detailed description of how the Building Expenses were grossed up and that only those component expenses that are affected by variations in occupancy levels shall be grossed up. Such additional rent shall be computed on a year-to-year basis. Any such additional rent shall be due within thirty (30) days after the Landlord has submitted a written statement to Tenant showing the amount due. Landlord may, in its discretion, make a reasonable estimate of such additional rent with respect to any calendar year, and require Tenant to pay each month during such year 1/12 of such amount, at the time of payment of monthly installments of Base Rent. In such event, Tenant shall pay, or Landlord shall refund or credit to Tenant's account, any underpayment or overpayment of such additional rent within thirty (30) days of Landlord's written statement of actual Building Expenses for the Calendar year. Tenant shall have the right to examine, at Tenant's sole expense, Landlord's records with respect to any such increases in rent; provided, however, that unless Tenant shall have given Landlord written notice of exception to any such statement within thirty (30) days after delivery thereof, the same shall be conclusive and binding on Tenant. No credit shall be given to the Tenant if the cost of Building Expenses Per Square Foot are less than the Base Year Building Expenses. Notwithstanding anything to the contrary contained herein Landlord shall use diligent efforts to keep Building Expenses at reasonable amounts, while maintaining the Building as a first class office building. 5.5 Additional Rent Payments. Tenant's obligation to pay any additional rent accruing during the Term pursuant to Sections 5.3 and 5.4 hereof shall apply pro rata to the proportionate part of a tax year as to Taxes, and calendar year, as to Building Expenses, in which this Lease begins or ends, for the portion of each such year during which this Lease is in effect. Such obligation to make payments of such additional rent shall survive the expiration or sooner termination of the Term, whether or not this Lease is superseded by a subsequent lease of the Premises or of any other space or Tenant leaves the Building; any such superseding lease shall not serve to supersede Tenant's obligation for any such additional rent unless it makes express reference thereto and recites that such additional rent is abated in consideration of the superseding lease. 5.6 Payments. All payments or installments of any rent hereunder and all sums whatsoever due under this Lease (including but not limited to court costs and attorneys fees) shall be deemed rent, shall be paid to Landlord at the address designated by Landlord, and if not paid when due, shall be subject to a late charge of $35.00 for each late payment and shall bear interest at the rate of 18% per annum (but not more than the maximum allowable legal rate applicable to Tenant) until paid. Additionally, if any of Tenant's checks for payment of rent or additional rent are returned to Landlord for insufficient funds, Tenant shall pay to Landlord as 5 additional rent $50.00 for each such check returned for insufficient funds, and if two or more of Tenant's checks in payment of rent or additional rent due hereunder are returned for insufficient funds in any calendar year, Landlord reserves the right upon ten (10) days advance written notice to Tenant to thereafter require Tenant to pay all rent and additional rent and other sums whatsoever due under this Lease in cash, by money order or by certified check or cashier's check. If an attorney is employed to enforce Landlord's rights under this Lease, Tenant shall pay all fees and expenses of such attorney whether or not legal proceedings are instituted by Landlord. However, where legal proceedings are instituted by Landlord against Tenant, and said legal proceedings result in a monetary judgment in favor of Landlord, those reasonable attorney fees for which Tenant shall be liable to Landlord shall not be less than fifteen percent (15%) of such monetary judgment. Time is of the essence in this Lease. 6. Requirements of Applicable Law. Landlord warrants that on the Commencement Date, the Premises shall comply with all applicable laws, ordinances, rules and regulations of governmental authorities having jurisdiction over the Property ("Applicable Laws"). Tenant, at its sole cost and expense, shall thereafter comply promptly with all Applicable Laws now in force or which may hereafter be in force, which impose any duty upon Landlord or Tenant with respect to the use, occupancy or alteration of the Premises or any part thereof and for the prevention of fires; provided, however, that Landlord and not Tenant shall correct all structural defects in the Building necessary to comply with Applicable Laws, and make all repairs, changes or alterations necessary because the Building was not constructed in compliance with any of said Applicable Laws. 7. Certificate of Occupancy. Tenant will not use or occupy the Premises in violation of any certificate of occupancy, permit, or other governmental consent issued for the Building. If any governmental authority, after the commencement of the Term, shall contend or declare that the Premises are being used for a purpose which is in violation of such certificate of occupancy, permit, or consent, then Tenant shall, upon five (5) days' notice from Landlord, immediately discontinue such use of the Premises. If thereafter the governmental authority asserting such violation threatens, commences or continues criminal or civil proceedings against Landlord for Tenant's failure to discontinue such use, in addition to any and all rights, privileges and remedies given to Landlord under this Lease for default therein, Landlord shall have the right to terminate this Lease forthwith. Tenant shall indemnify and hold Landlord harmless of and from any and all liability for any such violation or violations. 8. Contest-Statute, Ordinance, Etc. Tenant may, after notice to Landlord, by appropriate proceedings conducted promptly at Tenant's own expense in Tenant's name and whenever necessary in Landlord's name, contest in good faith the validity or enforcement of any such statute, ordinance, law, order, regulation or requirement and may similarly contest any assertion of violation of any certificate of occupancy, permit, or any consent issued for the Building. Tenant may, pending such contest, defer compliance therewith if, in the opinion of counsel for Landlord, such deferral shall not subject either the Landlord or the Premises or the 6 Property (or any part thereof) to any penalty, fine or forfeiture, and if Tenant shall post a bond with corporate surety approved by Landlord sufficient, in Landlord's opinion, fully to indemnify Landlord from loss. 9. Tenant's Improvements. Tenant shall make such improvements to the Premises as it may deem necessary at its sole cost and expense. Tenant shall not make any alterations, decorations, installations, additions or improvements to the Premises, including but not limited to, the installation of any fixtures, amenities, equipment, appliances, or other apparatus, without Landlord's prior written consent, and then only by contractors or mechanics employed or approved by Landlord. All such work, alterations, decorations, installations, additions or improvements shall be done at Tenant's sole expense and at such times and in such manner as Landlord may from time to time designate. Landlord's consent to and/or approval of Tenant's plans and specifications for the aforesaid improvements shall create no responsibility or liability on the part of Landlord for their completeness, design sufficiency, or compliance with all laws, rules and regulations of governmental agencies or authorities. All alterations, decorations, installations, additions or improvements made by either of the parties hereto upon the Premises, except movable office furniture put in at the expense of Tenant and other items as mutually agreed upon in writing, shall be the property of Landlord and shall remain upon and be surrendered with the Premises at the termination of this Lease without molestation or injury. 10. Repairs and Maintenance. 10.1 Tenant's Care of the Premises and Building. During the Term, Tenant shall: (i) keep the Premises and the fixtures, appurtenances and improvements therein in good order and condition; (ii) make repairs and replacements to the Premises required because of Tenant's misuse or primary negligence, except to the extent that the repairs or replacements are covered by Landlord's insurance as required hereunder; (iii) repair and replace special equipment or decorative treatments installed by or at Tenant's request and that serve the Premises only, except to the extent the repairs or replacements are needed because of Landlord's misuse or primary negligence, and are not covered by Tenant's insurance as required hereunder; (iv) pay for all damage to the Building, its fixtures and appurtenances, as well as all damages sustained by Tenant or occupants of the Building due to any waste, misuse or neglect of the Premises, its fixtures and appurtenances by Tenant, except to the extent that the repair of such damage is covered by Landlord's insurance as required hereunder; and (v) not commit waste. 7 In addition Tenant shall not place a load upon any floor of the Premises exceeding the floor load per square foot area which such floor was designed to carry and which may be allowed under Applicable Laws. Landlord reserves the right to prescribe the weight and position of all heavy equipment brought onto the Premises and prescribe any reinforcing required under the circumstances, all such reinforcing to be at Tenant's expense. 10.2 Landlord's Repairs. Except for the repairs and replacements that Tenant is required to make pursuant to Section 10.1 above, Landlord shall make all other repairs and replacements to the Premises, Common Areas and Building (including Building fixtures and equipment) as shall be reasonably deemed necessary to maintain the Building in a condition comparable to other first class suburban office buildings in the Baltimore-Washington corridor area. This maintenance shall include the roof, foundation, exterior walls, interior structural walls, all structural components, and all systems such as mechanical, electrical, multi-tenant HVAC, and plumbing. The costs associated with such repairs shall be deemed a part of Building Expenses; provided, however, that costs of all of such repairs which would be considered capital in nature under generally accepted accounting principles shall be paid by Landlord. There shall be no allowance to Tenant for a diminution of rental value, no abatement of rent, and no liability on the part of Landlord by reason of inconvenience, annoyance or injury to business arising from Landlord, Tenant or others making any repairs or performing maintenance as provided for herein. 10.3 Time for Repairs. Repairs or replacements required pursuant to Sections 10.1 and 10.2 above shall be made within a reasonable time (depending on the nature of the repair or replacement needed - generally no more than fifteen (15) days) after receiving notice or having actual knowledge of the need for a repair or replacement. 10.4 Surrender of the Premises. Upon the termination of this Lease, Tenant shall surrender the Premises to Landlord in the same broom clean condition that the Premises were in on the Commencement Date except for: (i) ordinary wear and tear; (ii) damage by the elements, fire, and other casualty unless Tenant would be required to repair under the provisions of this Lease; (iii) damage arising from any cause not required to be repaired or replaced by Tenant; and (iv) alterations as permitted by this Lease unless consent was conditioned on their removal. 8 On surrender, Tenant shall remove from the Premises its personal property, trade fixtures and any alterations required to be removed pursuant to the terms of this Lease and repair any damage to the Premises caused by this removal. Any items not removed by Tenant as required above shall be considered abandoned. Landlord may dispose of abandoned items as Landlord chooses and bill Tenant for the cost of their disposal. 11. Conduct on Premises. Tenant shall not do, or permit anything to be done in the Premises, or bring or keep anything therein which will, in any way, increase the rate of fire insurance on the Building, or invalidate or conflict with the fire insurance policies on the Building, fixtures or on property kept therein, or obstruct or interfere with the rights of the Landlord or of other tenants, or in any other way injure or annoy Landlord or the other tenants, or subject Landlord to any liability for injury to persons or damage to property, or interfere with the good order of the Building, or conflict with Applicable Laws, or the Maryland Fire Underwriters Rating Bureau. Tenant agrees that any increase of fire insurance premiums on the Building or contents caused by the occupancy of Tenant and any expense or cost incurred in consequence of negligence or carelessness or the willful action of Tenant, Tenant's employees, agents, servants, or invitees shall, as they accrue be added to the rent heretofore reserved and be paid as a part thereof; and Landlord shall have all the rights and remedies for the collection of same as are conferred upon the Landlord for the collection of rent provided to be paid pursuant to the terms of this Lease. 12. Insurance. 12.1 Tenant's Insurance. Tenant shall keep in force at its own expense, so long as this Lease remains in effect, (a) public liability insurance, including insurance against assumed or contractual liability under this Lease, with respect to the Premises, to afford protection with limits, per person and for each occurrence, of not less than Two Million Dollars ($2,000,000), combined single limit, with respect to personal injury and death and property damage, such insurance to provide for only a reasonable deductible, (b) all-risk property and casualty insurance, including theft, written at replacement cost value and with replacement cost endorsement, covering all of Tenant's personal property in the Premises and all improvements installed in the Premises by or on behalf of Tenant whether pursuant to the terms of Section 34, Section 9, or otherwise, such insurance to provide for only a reasonable deductible, (c) if, and to the extent, required by law, workmen's compensation or similar insurance offering statutory coverage and containing statutory limits, and (d) shall insure all plate and other interior glass in the Premises for and in the name of the Landlord. Such policies shall be maintained in companies and in form reasonably acceptable to Landlord and shall be written as primary policy coverage and not contributing with, or in excess of, any coverage which Landlord shall carry. Tenant shall deposit the policy or policies of such required insurance or certificates thereof with Landlord prior to the Commencement Date, which policies shall name Landlord or its designee and, at the request of Landlord, its mortgagees, as additional named insured and shall also contain a provision stating that such policy or policies shall not be canceled except after thirty (30) day's written notice to Landlord or its designees. All such policies of insurance shall be effective as of 9 the date Tenant occupies the Premises and shall be maintained in force at all times during the Term of this Lease and all other times during which Tenant shall occupy the Premises. In addition to the foregoing insurance coverage, Tenant shall require any contractor retained by it to perform work on the Premises to carry and maintain, at no expense to Landlord, during such times as contractor is working in the Premises, a non-deductible (i) comprehensive general liability insurance policy, including, but not limited to, contractor's liability coverage, contractual liability coverage, completed operations coverage, broad form property damage endorsement and contractor's protective liability coverage, to afford protection with limits per person and for each occurrence, of not less than Two Hundred Thousand Dollars ($200,000.00), combined single limit, with respect to personal injury and death and property damage, such insurance to provide for no deductible, and (ii) workmen's compensation insurance or similar insurance in form and amounts as required by law. In the event of damage to or destruction of the Premises and the termination of this Lease by Landlord pursuant to Section 17 herein, Tenant shall pay Landlord all of its insurance proceeds relating to improvements made in the Premises by or on behalf of Tenant whether pursuant to the terms of Section 9 or otherwise. If Tenant fails to comply with its covenants made in this Section, if such insurance would terminate or if Landlord has reason to believe such insurance is about to be terminated, Landlord may at its option cause such insurance as it in its sole judgment deems necessary to be issued, and in such event Tenant agrees to pay promptly upon Landlord's demand, as additional rent the premiums for such insurance. 12.2 Landlord's Insurance. Landlord shall keep in force at its own expense (a) contractual and comprehensive general liability insurance, including public liability and property damage, with a minimum combined single limit of liability of Two Million Dollars ($2,000,000.00) for personal injuries or death of persons occurring in or about the Building and Premises, and (b) all-risk property and casualty insurance written at replacement cost value covering the Building and all of Landlord's improvements in and about same. 12.3 Waiver of Subrogation. Each party hereto waives claims arising in any manner in its favor and against the other party and agrees that neither party hereto shall be liable to the other party or to any insurance company (by way of subrogation or otherwise) insuring the other party for any loss or damage to the Building, the Premises or other tangible property, or any resulting loss of income, or losses under worker's compensation laws and benefits, or against liability on or about the Building, even though such loss or damage might have been occasioned by the negligence of such party, its agents or employees if any such loss or damage is covered by insurance benefiting the party suffering such loss or damage as was required to be covered by insurance carried pursuant to this Lease. Landlord shall cause each insurance policy carried by it insuring against liability on or about the Building or insuring the Premises and the Building or income resulting therefrom against loss by fire or any of the casualties covered by the all-risk insurance carried by it hereunder to be written in such a manner as to provide that the insurer waives all right of recovery by way of subrogation against Tenant in connection with any loss or damage covered by such policies. Tenant shall cause each insurance policy carried by it insuring against liability or insuring the Premises (including the contents thereof and Tenant's 10 Improvements installed therein by Tenant or on its behalf) against loss by fire or any of the casualties covered by the all-risk insurance required hereunder to be written in such a manner as to provide that the insurer waives all right of recovery by way of subrogation against Landlord in connection with any loss or damage covered by such policies. 13. Rules and Regulations. Tenant agrees to be bound by the rules and regulations set forth on the schedule attached hereto as Exhibit "B" and made a part hereof. Landlord shall have the right, from time to time, to issue additional or amended rules and regulations regarding the use of the Building, so long as said rules shall be reasonable and non-discriminatory between tenants. When so issued the same shall be considered a part of this Lease and Tenant covenants that said additional or amended rules and regulations shall likewise be faithfully observed by Tenant, the employees of Tenant and all persons invited by Tenant into the Building, provided, that said additional or amended rules are made applicable to all office tenants similarly situated as Tenant. Landlord shall not be liable to Tenant for the violation of any of the said rules and regulations, or the breach of any covenant or condition in any lease, by any other tenant in the Building. 14. Mechanics' Liens. Tenant shall not do or suffer to be done any act, matter or thing whereby Tenant's interest in the Premises, or any part thereof, may be encumbered by any mechanics' lien. Tenant shall discharge, within ten (10) days after the date of filing, any mechanics' liens filed against Tenant's interest in the Premises, or any part thereof, purporting to be for labor or material furnished or to be furnished to Tenant. Landlord shall not be liable for any labor or materials furnished or to be furnished to Tenant upon credit, and no mechanics' or other lien for labor or materials shall attach to or affect the reversionary or other estate or interest of Landlord in and to the Premises, or the Property. 15. Tenant's Failure to Repair. In the event that Tenant fails after reasonable prior written notice from Landlord, to keep the Premises in a good state of condition and repair pursuant to Section 10 above, or to do any act or make any payment required under this Lease or otherwise fails to comply herewith, Landlord may, at its option (but without being obliged to do so) immediately, or at any time thereafter and without notice, perform the same for the account of Tenant, including the right to enter upon the Premises at all reasonable hours to make such repairs, or do any act or make any payment or compliance which Tenant has failed to do, and upon demand, Tenant shall reimburse Landlord for any such expense incurred by Landlord including but not limited to any costs, damages and counsel fees. Any moneys expended by Landlord, as aforesaid, shall be deemed additional rent, collectible as such by Landlord. All rights given to Landlord in this section shall be in addition to any other right or remedy of Landlord herein contained. 16. Property -- Loss, Damage. Landlord, its agents and employees shall not be liable to Tenant for (i) any damage or loss of property of the Tenant placed in the custody of persons employed to provide services for or stored in or about the Premises and/or the Building, unless such damage or loss is the result of the negligence of Landlord, (ii) any injury or damage to persons, property or the business of Tenant resulting from a latent defect in or material change in the condition of 11 the Building, and (iii) interference with the light, air, or other incorporeal hereditaments of the Premises. 17. Destruction -- Fire or Other Casualty. In case of partial damage to the Premises by fire or other casualty insured against by Landlord, Tenant shall give immediate notice thereof to Landlord, who shall thereupon cause damage to all property owned by it to be repaired with reasonable speed at expense of Landlord, due allowance being made for reasonable delay which may arise by reason of adjustment of loss under insurance policies on the part of Landlord and/or Tenant, and for reasonable delay on account of "labor troubles" or any other cause beyond Landlord's control, and to the extent that the Premises are rendered untenantable the rent shall proportionately abate from the date of such casualty, provided the damage above mentioned occurred without the fault or neglect of Tenant, Tenant's servants, employees, agents or visitors. If such partial damage is due to the fault or neglect of Tenant, or Tenant's servants, employees, agents, or invitees, the damage shall be repaired by Landlord to the extent of Landlord's insurance coverage, but there shall be no apportionment or abatement of rent. In the event the damage shall be so extensive to the whole Building as to render it uneconomical, in Landlord's opinion, to restore for its present uses and Landlord shall decide not to repair or rebuild the Building, this Lease, at the option of Landlord, shall be terminated upon written notice to Tenant and the rent shall, in such event, be paid to or adjusted as of the date of such damage, and the terms of this Lease shall expire by lapse of time and conditional limitation upon the third day after such notice is mailed, and Tenant shall thereupon vacate the Premises and surrender the same to Landlord, but no such termination shall release Tenant from any liability to Landlord arising from such damage or from any breach of the obligations imposed on Tenant hereunder, or from any obligations accrued hereunder prior to such termination. 18. Eminent Domain. If (1) the whole or more than fifty percent (50%) of the floor area of the Premises shall be taken or condemned by Eminent Domain for any public or quasi-public use or purpose, and either party shall elect, by giving written notice to the other, or (2) more than twenty-five percent (25%) of the floor area of the Building shall be so taken, and Landlord shall elect, in its sole discretion, by giving written notice to the Tenant, any said written notice to be given not more than sixty (60) days after the date on which title shall vest in such condemnation proceeding, to terminate this Lease, then, in either such event, the Term of this Lease shall cease and terminate as of the date of title vesting. In case of any taking or condemnation, whether or not the Term of this Lease shall cease and terminate, the entire award shall be the property of Landlord, and Tenant hereby assigns to Landlord all its right, title and interest in and to any such award, except that Tenant shall be entitled to claim, prove and receive in the proceedings such awards as may be allowed for moving expenses, loss of profit and fixtures and other equipment installed by it which shall not, under the terms of this Lease, be or become the property of Landlord at the termination hereof, but only if such awards shall be made by the condemnation, court or other authority in addition to, and be stated separately from, the award made by it for the Property or part thereof so taken. 12 19. Sublease, Assignment and Recapture Provisions. 19.1 Tenant shall not have the right to assign this Lease or sublet all or any portion of the Premises without Landlord's prior written consent, which consent may be given or withheld by Landlord in its reasonable discretion. In the event of an approved assignment, such assignee shall assume in writing all of Tenant's obligations under this Lease and Tenant shall have no further liability hereunder. Any assignment or subletting shall be under and subject to Landlord's Recapture Option (as defined below). 19.2 At any time and from time to time during the Term, Landlord may elect to terminate this Lease as to any or any portion of the Premises. (a) Landlord shall exercise its rights under Section 19.2 (the "Recapture Option"), if at all, by giving Tenant notice thereof in writing (the "Recapture Notice"). The Recapture Notice shall set forth (i) the space as to which the Recapture Option is being exercised (the "Recaptures Space"); (ii) Landlord's determination of the number of square feet in the Recapture Space; and (iii) the date upon which such termination is effective (the "Recapture Date"). The parties acknowledge and agree that the Recapture Date shall be the date that the replacement tenant takes possession of the Recaptured Space and begins to pay rent thereon. Upon receipt of a Recapture Notice, and prior to the Recapture Date, Tenant shall surrender possession of the Recapture Space to Landlord in the condition required under Section 10.4 of this Lease. (b) The Recapture Option shall not be exhausted by one (1) exercise thereof (unless Landlord exercises the Recapture Option for the entire Premises) and Landlord may exercise the Recapture Option on any number of occasions during the Term. (c) If Landlord exercises the Recapture Option, effective as of the Recapture Date: (i) this Lease shall terminate as the Recaptured Space; (ii) the Premises shall be reduced by the number of square feet in the Recaptured Space; (iii) The Base Rent shall be reduced by an amount equal to the product of $18.50 and the square footage of the Recaptured Space; (iv) the monthly installments of Base Rent shall be adjusted based upon the new Base Rent, and if the Recaptured Date is any day other than the first day of a calendar month, Landlord and Tenant shall prorate the Base Rent on a per diem basis; 13 (v) if Tenant has paid any Taxes with respect to the recaptured Space for any period after the Recapture Date, Landlord shall pay Tenant the amount of such Taxes; and (vi) effective as of the Recapture Date, Tenant's proportionate share of Taxes and Building Expenses shall be adjusted to reflect the reduction in the size of the Premises. Promptly following each Recapture Date, Landlord and Tenant shall enter into an amendment to this Lease, setting forth the new Base Rent and Tenant's proportionate share for payment of Taxes and Building Expenses. 20. Default; Remedies; Bankruptcy of Tenant. Any one or more of the following events shall constitute an "Event of Default" hereunder, at Landlord's election: (a) the sale of Tenant's interest in the Premises under attachment, execution or similar legal process or, the adjudication of Tenant as a bankrupt or insolvent, unless such adjudication is vacated within thirty (30) days; (b) the filing of a voluntary petition proposing the adjudication of Tenant as a bankrupt or insolvent, or the reorganization of Tenant, or an arrangement by Tenant with its creditors, whether pursuant to the Federal Bankruptcy Code or any similar federal or state proceeding, unless such petition is filed by a party other than Tenant and is withdrawn or dismissed within thirty (30) days after the date of its filing; (c) the admission, in writing, by Tenant of its inability to pay its debts when due; (d) the appointment of a receiver or trustee for the business or property of Tenant, unless such appointment is vacated within thirty (30) days of its entry; (e) the making by Tenant of an assignment for the benefit of its creditors, or if, in any other manner, Tenant's interest in this Lease shall pass to another by operation of law; (f) the failure of Tenant to pay any rent, additional rent or other sum of money when due and such failure continues for a period of seven (7) days after receipt of written notice that the same is past due hereunder; (g) the default by Tenant in the performance or observance of any covenant or agreement of this Lease (other than a default involving the payment of money), which default is not cured within thirty (30) days after the giving of notice thereof by Landlord, unless such default is of such nature that it cannot be cured within such thirty (30) day period, in which case no Event of Default shall occur so long as Tenant shall commence the curing of the default within such thirty (30) day period and shall thereafter diligently prosecute the curing of same. Upon the occurrence and continuance of an Event of Default, Landlord, with such notice to Tenant as provided for by law or as expressly provided for herein, may do any one or more of the following: (a) sell, at public or private sale, all or any part of the goods, chattels, fixtures and other personal property belonging to Tenant which are or may be put into the Premises during the Term, whether or not exempt from sale under execution or attachment (it being agreed that said property shall at all times be bound with a lien in favor of Landlord and shall be chargeable for all rent and for the fulfillment of the other covenants and agreements herein contained), and apply the proceeds of such sale, first, to the payment of all costs and expenses of conducting the 14 sale or caring for or storing said property; second, toward the payment of any indebtedness, including, without limitation, indebtedness for rent, which may be or may become due from Tenant to Landlord; and third, to pay the Tenant, on demand in writing, any surplus remaining after all indebtedness of Tenant to Landlord has been fully paid; (b) perform, on behalf and at the expense of Tenant, any obligation of Tenant under this Lease which Tenant has failed to perform and of which Landlord shall have given Tenant notice, the cost of which performance by Landlord, together, with interest thereon at the rate of eighteen percent (18%) per annum, from the date of such expenditure, shall be deemed additional rent and shall be payable by Tenant to Landlord upon demand; (c) elect to terminate this Lease and the tenancy created hereby by giving notice of such election to Tenant in which event Tenant shall be liable for Base Rent, Additional Rent, and other indebtedness that otherwise would have been payable by Tenant during the remainder of the Term had there been no Event of Default, and on notice reenter the Premises, by summary proceedings or otherwise, and remove Tenant and all other persons and property from the Premises, and store such property in a public warehouse or elsewhere at the cost and for the account of Tenant, without resort to legal process and without Landlord being deemed guilty of trespass or becoming liable for any loss or damage occasioned thereby; and also the right, but not the obligation, to re-let the Premises for any unexpired balance of the Term, and collect the rent therefor. In the event of such re-letting by Landlord, the re-letting shall be on such terms, conditions and rental as Landlord may deem proper, and the proceeds that may be collected from the same, less the expense of re-letting (including reasonable leasing fees and commissions and reasonable costs of renovating the Premises), shall be applied upon the Tenant's rental obligation as set forth in this Lease for the unexpired portion of the Term. Tenant shall be liable for any balance that may be due under this Lease, although Tenant shall have no further right of possession of the Premises; and (d) exercise any other legal or equitable right or remedy which it may have at law or in equity. Notwithstanding the provisions of clause (b) above and regardless of whether an Event of Default shall have occurred, Landlord may exercise the remedy described in clause (b) without any notice to Tenant if Landlord, in its good faith judgment, believes it would be materially injured by the failure to take rapid action, or if the unperformed obligation of Tenant constitutes an emergency. To the extent permitted by law, Tenant hereby expressly waives any and all rights of redemption, granted by or under any present or future laws in the event of Tenant's being evicted or dispossessed for any cause, or in the event of Landlord's obtaining possession of the Premises, by reason of the violation by Tenant of any of the covenants and conditions of this Lease, or otherwise. Landlord and Tenant hereby expressly waive trial by jury in any action or proceeding or counterclaim brought by either party hereto against the other party on any and every matter, directly or indirectly arising out of or with respect to this Lease, including, without limitation, the relationship of Landlord and Tenant, the use and occupancy by Tenant of the Premises, any statutory remedy and/or claim of injury or damage regarding this Lease. 15 Any costs and expenses incurred by Landlord (including, without limitation, reasonable attorneys' fees) in enforcing any of its rights or remedies under this Lease shall be deemed to be additional rent and shall be repaid to Landlord by Tenant upon demand. Notwithstanding any of the other provisions of this Lease, in the event Tenant shall voluntarily or involuntarily come under the jurisdiction of the Federal Bankruptcy Code and thereafter Tenant or its trustee in bankruptcy, under the authority of and pursuant to applicable provisions thereof, shall have the power and so using same determine to assign this Lease, Tenant agrees that (i) Tenant or its trustee shall provide to Landlord sufficient information enabling it to independently determine whether Landlord will incur actual and substantial detriment by reason of such assignment and (ii) "adequate assurance of future performance" under this Lease, as that term is generally defined under the Federal Bankruptcy Code, shall be provided to Landlord by Tenant and its assignee as a condition of said assignment. 21. Damages. If this Lease is terminated by Landlord pursuant to Section 20, Tenant shall, nevertheless, remain liable for all rent and damages which may be due or sustained prior to such termination, and all reasonable costs, fees and expenses including, but not limited to, attorneys' fees, costs and expenses incurred by Landlord in pursuit of its remedies hereunder, or in renting the Premises to others from time to time and additional damages (the "Liquidated Damages"), which shall be an amount equal to the total rent which, but for termination of this Lease, would have become due during the remainder of the Term, less the amount of rent, if any, which Landlord shall receive during such period from others to whom the Premises may be rented (other than any additional rent received by Landlord as a result of any failure of such other person to perform any of its obligations to Landlord), in which case such Liquidated Damages shall be computed and payable in monthly installments, in advance on the first day of each calendar month following termination of the Lease and continuing until the date on which the Term would have expired but for such termination, and any suit or action brought to collect any such Liquidated Damages for any month shall not in any manner prejudice the right of Landlord to collect any Liquidated Damages for any subsequent month by a similar proceeding. If this Lease is terminated pursuant to Section 20, Landlord may relet the Premises or any part thereof, alone or together with other premises, for such term(s) which may be greater or less than the period which otherwise would have constituted the balance of the Term and on such terms and conditions (which may include concessions, free rent and/or alterations of the Premises) as Landlord, in its sole discretion, may determine, but Landlord shall not be liable for, nor shall Tenant's obligations hereunder be diminished by reason of, any failure by Landlord to relet the Premises or any failure by Landlord to collect any rent due upon such reletting. 22. Services and Utilities. Landlord shall provide the following listed services and utilities, namely: 16 (a) heating, ventilation, and air conditioning ("HVAC") for the Premises during "Normal Business Hours" (as defined below) to maintain temperatures for comfortable use and occupancy; (b) electric energy in accordance with Section 23 following; (c) automatic passenger elevators providing adequate service leading to the floor on which the Premises are located; (d) evening, unescorted janitorial services to the Premises including removal of trash; (e) hot and cold water sufficient for drinking, lavatory toilet and ordinary cleaning purposes from fixtures either within the Premises (if provided pursuant to this Lease) or on the floor on which the Premises are located; (f) replacement of lighting tubes, lamp ballasts and bulbs; (g) extermination and pest control when and if necessary; and (h) maintenance of Common Areas in a manner comparable to other first class suburban office buildings in the Baltimore-Washington corridor. Notwithstanding the foregoing, if at any time during the Term and any extension or renewal thereof, Landlord shall, after reasonable investigation determine that trash and similar waste generated by Tenant and/or emanating from the Premises is in excess of that of other standard office tenants within the Building leasing a premises of the same or similar size to that of the Premises, Landlord shall bill Tenant and Tenant shall pay to Landlord as additional rent hereunder within thirty (30) days of the date of Landlord's invoice for the same, those costs and expenses of trash removal which are reasonably attributable to such excess trash and similar waste generated by Tenant and/or emanating from the Premises. As used herein, the term "Normal Business Hours" is defined from 8:00 a.m. to 6:00 p.m. on business days and from 8:00 a.m. to 1:00 p.m. on Saturdays. Landlord shall have no responsibility to provide any services under (a) above except during Normal Business Hours unless arrangements for after-hours services have been made pursuant to terms and conditions acceptable to Landlord and embodied in a separate written agreement between Landlord and Tenant. Landlord reserves the right to stop service of the HVAC, elevator, plumbing and electric systems, when necessary, by reason of accident, or emergency, or for repairs, alterations, replacements, or improvements, which in the judgment of Landlord are desirable or necessary to be made, until said repairs, alterations, replacements, or improvements shall have been completed. Landlord shall have no responsibility or liability for failure to supply HVAC, elevator, plumbing, cleaning, and electric service, during said period or when prevented from so doing by laws, orders, or regulations of any Federal, State, County or Municipal authority or by strikes, accidents or by any other cause 17 whatsoever beyond Landlord's control. Landlord's obligations to supply HVAC are subject to applicable laws and regulations as to energy conservation and other such restrictions. In the event that Tenant should require supplemental HVAC for the Premises, any maintenance repair and/or replacement required for such supplemental service shall be performed by Landlord but the cost of such maintenance repair and/or replacement (including labor and materials) shall be paid by Tenant as additional rent. 23. Electric Current. Throughout the Term, Landlord shall furnish Tenant without additional charge during Normal Business Hours (as defined in Section 22) a reasonable amount of electric current at 110 volts ("Normal Usage Amount") for lighting purposes within the Premises and the powering of a normal amount of office equipment and appliances. As used herein, the term "Normal Usage Amount" is means electric power supplied at the rate of three (3) watts per square foot of Premises. In this regard, Tenant shall: (1) If Landlord reasonably determines based upon engineering studies of electrical load consumed that Tenant is materially exceeding the Normal Usage Amount Tenant shall pay to Landlord such amounts as additional rent as shall equitably reimburse Landlord for the cost of the extra electric power so consumed by Tenant; (2) If Tenant desires to operate its business in the Premises at other than normal business hours it shall pay for same at rates mutually agreed upon by separate agreement between the parties, it being understood that Landlord shall have no obligation to supply Normal Usage Amount to Tenant for after hours usage until such a mutual agreement is reached; (3) If Tenant shall desire to place and install in the Premises electric equipment or appliances other than normal and typical to general office usage it shall pay for such installations including any additional electric lines and facilities required and shall pay for the electric power used in such equipment if same exceeds Normal Usage Amount. 24. Telephone. Landlord has arranged for the installation of telephone service within the Building. Tenant shall be responsible for contacting the utility company supplying said telephone service and arranging to have such telephone facilities as it may desire to be extended and put into operation in the Premises. All telephone and telecommunications services desired by Tenant shall be ordered and utilized at the sole expense of Tenant. All costs related to installation and the provision of such service shall be borne and paid for directly by Tenant. In the event Tenant wishes to utilize the services of a telephone or telecommunications provider whose equipment is not servicing the Building at such time Tenant wishes to install its telecommunications equipment serving the Premises ("Provider"), no such Provider shall be permitted to install its lines or other equipment without first securing the prior written consent of Landlord, which consent shall not be unreasonably withheld. Prior to the commencement of any work in or about the Building by the Provider, the Provider shall agree to abide by such rules and 18 regulations, job site rules, and such other requirements as reasonably determined by Landlord to be necessary to protect the interest of the Building and Property, the other tenants and occupants of the Building and the Landlord, including, without limitation, providing security in such form and amount as reasonable determined by Landlord. Each Provider must be duly licensed, insured and reputable. Landlord shall incur no expense whatsoever with respect to any aspect of Provider's provision of its services, including without limitation, the costs of installation, materials and service. 25. Acceptance of Premises. Tenant shall have reasonable opportunity, provided it does not thereby interfere with Landlord's work, to examine the Premises to determine the condition thereof. Upon taking possession of the Premises, Tenant shall be deemed to have accepted same as being satisfactory and in the condition called for hereunder, except for latent defects and punch list items previously noted to Landlord. 26. Inability to Perform. This Lease and the obligation of Tenant to pay rent hereunder and perform all of the other covenants and agreements hereunder on the part of Tenant to be performed shall in no way be affected, impaired or excused because Landlord is unable to fulfill any of its obligations under this Lease or to supply, or is delayed in supplying, any service to be supplied by it under the terms of this Lease or is unable to make, or is delayed in making any repairs, additions, alterations, or decorations or is unable to supply, or is delayed in supplying, any equipment or fixtures if Landlord is prevented or delayed from so doing by reason of strikes or labor troubles or any outside cause whatsoever including, but not limited to, governmental preemption in connection with a National Emergency, or by reason of any rule, order or regulation of any department or subdivision of any government agency or by reason of the conditions of supply and demand which have been or are affected by war or other emergency. Similarly, Landlord shall not be liable for any interference with any services supplied to Tenant by others if such interference is caused by any of the reasons listed in this Section 26. Nothing contained in this Section shall be deemed to impose any obligation on Landlord not expressly imposed by other sections of this Lease. 27. No Waivers. The failure of Landlord to insist, in any one or more instances, upon a strict performance of any of the covenants of this Lease, or to exercise any option herein contained, shall not be construed as a waiver, or a relinquishment for the future, of such covenant or option, but the same shall continue and remain in full force and effect. The receipt by Landlord of rent, with knowledge of the breach of any covenant hereof, shall not be deemed a waiver of such breach, and no waiver by Landlord of any provision hereof shall be deemed to have been made unless expressed in writing and signed by Landlord. 28. Access to Premises and Change in Services. Landlord shall have the right, without abatement of rent, to enter the Premises at any hour to examine the same, or to make such repairs and alterations as Landlord shall deem necessary for the safety and preservation of the Building, and also to exhibit the Premises to be let; provided, however, that except in the case of 19 emergency such entry shall only be after notice first given to Tenant if Tenant is occupying the Premises. If, during the last month of the Term, Tenant shall have removed all or substantially all of Tenant's property therefrom, Landlord may immediately enter and alter, renovate and redecorate the Premises, without elimination or abatement of rent, or incurring liability to Tenant for any compensation, and such acts shall have no effect upon this Lease. Nothing herein contained, however, shall be deemed or construed to impose upon Landlord any obligation, responsibility or liability whatsoever, for the care, supervision or repair, of the Building or any part thereof, other than as herein elsewhere expressly provided. Landlord shall also have the right at any time, without the same constituting an actual or constructive eviction and without incurring any liability to Tenant therefor, to change the arrangement and/or location of entrances or passageways, doors and doorways, and corridors, stairs, toilets, elevators, or other public parts of the Building, and to change the name by which the Building is commonly known and/or its mailing address. 29. Estoppel Certificates. Tenant agrees at any time and from time to time upon not less than ten (10) days' prior notice by Landlord to execute, acknowledge and deliver to Landlord a statement in writing certifying that this Lease is unmodified and in full force (or if there have been modifications, that the same is in full force and effect as modified and stating the modifications) and the dates to which the rent and other charges have been paid in advance, if any, and stating whether or not to the best knowledge of the signer of such certificate Landlord is in default in performance of any covenant, agreement or condition contained in this Lease and, if so, specifying each such default of which the signer may have knowledge, it being intended that any such statement delivered hereunder may be relied upon by third parties not a party to this Lease. Tenant agrees to execute the Estoppel Certificate in the form attached hereto as Exhibit "D" upon acceptance of the Premises. 30. Subordination. Tenant accepts this Lease, and the tenancy created hereunder, subject and subordinate to any mortgages, overleases, leasehold mortgages or other security interests now or hereafter a lien upon or affecting the Building or the Property or any part thereof. Tenant shall, at any time hereafter, on request, execute any instruments or leases or other documents that may be required by any mortgage or mortgagee or overlandlord (herein a "Mortgagee") for the purpose of subjecting or subordinating this Lease and the tenancy created hereunder to the lien of any such mortgage or mortgages or underlying lease, and the failure of Tenant to execute any such instruments, releases or documents shall constitute a default hereunder. 31. Attornment. Upon any termination of Landlord's interest in the Premises, Tenant shall, upon request, attorn to the person or organization then holding title to the reversion of the Premises (the "Successor") and to all subsequent Successors, and shall pay to the Successor all of the rents and other monies required to be paid by the Tenant hereunder and perform all of the other terms, covenants, conditions and obligations in this Lease contained; provided, however, that if in 20 connection with such attornment Tenant shall so request from such Successor in writing, such Successor shall execute and deliver to Tenant an instrument wherein such Successor agrees that as long as Tenant performs all of the terms, covenants and conditions of this Lease, on Tenant's part to be performed, Tenant's possession under the provisions of this Lease shall not be disturbed by such Successor. 32. Notices. All notices, demands and requests required under this Lease shall be in writing. All such notices, demands and requests shall be deemed to have been properly given if either sent by United States registered or certified mail, or overnight by any nationally recognized overnight delivery service, postage prepaid, addressed (i) if to the Landlord at 8815 Centre Park Drive, Suite 400, Columbia, Maryland 21045, with copies sent to General Counsel, 8815 Centre Park Drive, Suite 400, Columbia, Maryland 21045 or (ii) if to Tenant at the Premises. Any party may designate a change of address by written notice to the above parties, given at least ten (10) days before such change of address is to become effective. 33. Relocation. Intentionally Left Blank. 34. Tenant's Space. Tenant accepts the Premises in "as is" condition as of the date of this Lease. 35. Quiet Enjoyment. Tenant, upon the payment of rent and the performance of all the terms of this Lease, shall at all times during the Term and during any extension or renewal term peaceably and quietly enjoy the Premises without any disturbance from the Landlord or any other person claiming through the Landlord. 36. Vacation of Premises. Tenant shall vacate the Premises at the end of the Term of this Lease. If Tenant fails to vacate at such time there shall be payable to Landlord an amount equal to double the monthly rent stated in Section 5 for each month or part of a month that Tenant holds over, plus all other payments provided for herein, and the payment and acceptance of such payments shall not constitute an extension or renewal of this Lease. In event of any such holdover, Landlord shall also be entitled to all remedies provided by law for the speedy eviction of tenants, and to the payment of all attorneys' fees and expenses incurred in connection therewith. 37. Partners' Liability. It is understood that the Owner of the Building is a Maryland Limited Partnership. All obligations of said Owner hereunder are limited to the net assets of the Owner from time to time. No general or limited partner of Owner, or of any successor partnership, whether now or hereafter a partner, shall have any personal responsibility or liability for the obligations of Owner hereunder. 38. Separability. If any term or provision of this Lease or the application thereof to any person or circumstances shall, to any extent, be invalid or unenforceable, the remainder of this Lease or 21 the application of such term or provision of such term or provision to persons or circumstances other than those as to which it is held invalid or unenforceable, shall not be affected thereby, and each term and provision of this Lease shall be valid and be enforced to the fullest extent permitted by law. 39. Indemnification. Tenant shall indemnify and hold harmless Landlord and all of its and their respective partners, directors, officers, agents and employees from any and all liability, loss, cost or expense arising from all third-party claims resulting from or in connection with: (i) the conduct or management of the Premises or of any business therein, or any work or thing whatsoever done, or any condition created in or about the Premises during the Term of this Lease or during the period of time, if any, prior to the Commencement Date that Tenant may have been given access to the Premises; (ii) any act, omission or negligence of Tenant or any of its subtenants or licensees or its or their partners, directors, officers, agents, employees, invitees or contractors; (iii) any accident, injury or damage whatever occurring in, at or upon the Premises; and (iv) any breach or default by Tenant in the full and prompt payment and performance of Tenant's obligations under this Lease; together with all costs and expenses reasonably incurred or paid in connection with each such claim or action or proceeding brought thereon, including, without limitation, all reasonable attorney's fees and expenses. In case any action or proceeding is brought against Landlord and/or any of its and their respective partners, directors, officers, agents or employees and such claim is a claim from which Tenant is obligated to indemnify Landlord pursuant to this Section 39, Tenant, upon notice from Landlord shall resist and defend such action or proceeding (by counsel reasonably satisfactory to Landlord). The obligations of Tenant under this Section shall survive termination of this Lease. 40. Captions. All headings anywhere contained in this Lease are intended for convenience or reference only and are not to be deemed or taken as a summary of the provisions to which they pertain or as a construction thereof. 41. Brokers. Tenant represents that Tenant has not dealt either directly or indirectly with any broker in connection with this Lease, and no broker is entitled to any commissions in connection with this Lease. 22 42. Recordation. Tenant shall not, without Landlord's prior written consent, record this Lease or any memorandum of this Lease or offer this Lease or any memorandum of this Lease for recordation. If at any time Landlord or any mortgagee of Landlord's interest in the Premises shall require the recordation of this Lease or any memorandum of this Lease, such recordation shall be at Landlord's expense. If at any time Tenant shall require the recordation of this Lease or any memorandum of this Lease, such recordation shall be at Tenant's expense. If the recordation of this Lease or any memorandum of this Lease shall be required by any valid governmental order, or if any government authority having jurisdiction in the matter shall assess and be entitled to collect transfer taxes or documentary stamp taxes, or both transfer taxes and documentary stamp taxes on this Lease or any memorandum of this Lease, Tenant shall execute such acknowledgments as may be necessary to effect such recordations and pay, upon request of Landlord, one half of all recording fees, transfer taxes and documentary stamp taxes payable on, or in connection with this Lease or any memorandum of this Lease or such recordation. 43. Successors and Assigns. The covenants, conditions and agreements contained in this Lease shall bind and inure to the benefit of Landlord and Tenant, and their respective heirs, personal representatives, successors and assigns (subject, however, to the terms of Article 19 hereof). 44. Integration of Agreements. This writing is intended by the parties as a final expression of their agreement and is a complete and exclusive statement of its terms, and all negotiations, considerations and representations between the parties are incorporated. No course of prior dealings between the parties or their affiliates shall be relevant or admissible to supplement, explain, or vary any of the terms of this Lease. Acceptance of, or acquiescence to, a course of performance rendered under this Lease or any prior agreement between the parties or their affiliates shall not be relevant or admissible to determine the meaning of any of the terms or covenants of this Lease. Other than as specifically set forth in this Lease, no representations, understandings, or agreements have been made or relied upon in the making of this Lease. 45. Hazardous Material; Indemnity. Tenant shall not cause or permit any Hazardous Material (as hereinafter defined) to be brought upon, kept, or used in or about the Premises by Tenant, its agents, employees, contractors or invitees, without the prior written consent of Landlord (which Landlord shall not unreasonably withhold as long as Tenant demonstrates to Landlord's reasonable satisfaction that such Hazardous Material is necessary or useful to Tenant's business and shall be used, kept and stored in a manner that complies with all laws regulating any such Hazardous Material so brought upon or used or kept in or about the Premises). If Tenant breaches the obligations stated in the preceding sentence, or if the presence of Hazardous Material on the Premises caused or permitted by Tenant results in contamination of the Premises, the Building and/or the Property, or if contamination of the Premises, the Building and/or the Property by Hazardous Material otherwise occurs, for which Tenant is legally liable to Landlord for damage resulting therefrom, then Tenant shall indemnify, defend and hold Landlord and its Mortgagee(s) harmless from any and all claims, judgments, damages, penalties, fines, costs, liabilities or losses (including, without limitation, diminution in value of the Premises, the Building and/or the 23 Property, damages for the loss or restriction on use of rentable or usable space or of any amenity of the Premises, the Building and/or the Property, damages arising from any adverse impact on marketing of space, and sums paid in settlement of claims, attorneys' fees, consultant fees and expert fees) which arise during or after the Term as a result of such contamination. This indemnification of Landlord and its Mortgagee(s) by Tenant includes, without limitation, costs incurred in connection with any investigation of site conditions or any cleanup, remedial, removal, or restoration work required by any federal, state or local governmental agency or political subdivision because of Hazardous Material present in the soil or ground water on or under the Building. Without limiting the foregoing, if the presence of any Hazardous Material on the Premises, the Building and/or the Property caused or permitted by Tenant results in any contamination of the Premises, the Building and/or the Property, Tenant shall promptly take all actions at its sole expense as are necessary to return the Premises, the Building and/or the Property to the condition existing prior to the introduction of any such Hazardous Material to the Premises, the Building and/or the Property; provided that Landlord's approval of such actions shall first be obtained, which approval shall not be unreasonably withheld so long as such actions would not potentially have any material adverse long-term or short-term effect on the Premises or the Building. As used herein, the term "Hazardous Material" means any hazardous or toxic substance, material or waste which is or becomes regulated by any local governmental authority, the State of Maryland or the United States Government. The term "Hazardous Material" includes, without limitation, any material or substance that is (i) defined as a "hazardous substance" under the laws of the State of Maryland, (ii) petroleum, (iii) asbestos, (iv) designated as a "hazardous substance" pursuant to Section 311 of the Federal Water Pollution Control Act (33 U.S.C. Section 1321), (v) defined as a "hazardous waste" pursuant to Section 1004 of the Federal Resource Conservation and Recovery Act, 42 U.S.C. Section 6901 et seq. (42 U.S.C. Section 6903), (vi) defined as a "hazardous substance" pursuant to Section 101 of the Comprehensive Environmental Response, Compensation and Liability Act, 42 U.S.C. Section 9601 et seq. (42 U.S.C. Section 9601), or (vii) defined as a "regulated substance" pursuant to Subchapter IX, Solid Waste Disposal Act (Regulation of Underground Storage Tanks), 42 U.S.C. Section 6991 et seq. 46. Americans With Disabilities Act. Notwithstanding any other provisions contained in this Lease and with the purpose of superseding any such provisions herein that might be construed to the contrary, it is the intent of the Landlord and Tenant that at all times while this Lease shall be in effect that the following provisions shall be deemed their specific agreement as to how the responsibility for compliance (and cost) with the Americans With Disabilities Act and amendments to same ("ADA"), both as to the Premises and the Property, shall be allocated between them, namely: 1. Landlord and Tenant agree to cooperate together in the initial design, planning and preparation of specifications for construction of the Premises so that same shall be in compliance with the ADA. Any costs associated with assuring that the plans and specifications 24 for the construction of the Premises are in compliance with the ADA shall be borne by the party whose responsibility it is hereunder to bear the cost of preparation of the plans and specifications. Similarly those costs incurred in the initial construction of the Premises so that same are built in compliance with the ADA shall be included within Tenant's Improvements and handled in the manner as provided for in other Sections of this Lease. 2. Modifications, alterations and/or other changes required to and within the Common Areas which are not capital in nature shall be the responsibility of Landlord to perform and the cost of same shall be considered a part of the Building Expenses and treated as such. 3. Modifications, alterations and/or other changes required to and within the Common Areas which are capital in nature shall be the responsibility of Landlord and at its cost and expense. 4. Modifications, alterations and/or other changes required to and within the Premises (after the initial construction of same), whether capital in nature or non-capital in nature, shall be the responsibility of Tenant and at its cost and expense; unless said changes are structural in nature and result from the original design of the Building, in which instance they shall be the responsibility of Landlord and at its cost and expense. Each party hereto shall indemnify and hold harmless the other party from any and all liability, loss, cost or expense arising as a result of a party not fulfilling its obligations as to compliance with the ADA as set forth in this Section 46. 47. Several Liability. If the Tenant shall be one or more individuals, corporations or other entities, whether or not operating as a partnership or joint venture, then each such individual, corporation, entity, joint venturer or partner shall be deemed to be both jointly and severally liable for the payment of the entire rent and other payments specified herein. 25 IN WITNESS WHEREOF, Landlord and Tenant have respectively affixed their hands and seals to this Lease as of the day and year first above written. LANDLORD: ST. BARNABAS LIMITED PARTNERSHIP, a Maryland limited partnership By: COPT COLUMBIA, LLC, General Partner By: Corporate Office Properties, L.P., a Delaware limited partnership, its sole member By: Corporate Office Properties Trust, its sole general partner By: /s/ Clay W. Hamlin, III ------------------------ Clay W. Hamlin, III President and Chief Executive Officer TENANT: CONSTELLATION PROPERTIES, INC., a Maryland corporation By: /s/ Dan R. Skowronski (SEAL) --------------------- Dan R. Skowronski Secretary 26 EXHIBIT "A" to Agreement of Lease by and between St. Barnabas Limited Partnership, Landlord and Constellation Properties, Inc., Tenant FLOOR PLAN [GRAPHIC OMITTED] EXHIBIT "A" to Agreement of Lease by and between St. Barnabas Limited Partnership, Landlord and Constellation Properties, Inc., Tenant FLOOR PLAN [GRAPHIC OMITTED] EXHIBIT "A" to Agreement of Lease by and between St. Barnabas Limited Partnership, Landlord and Constellation Properties, Inc., Tenant FLOOR PLAN [GRAPHIC OMITTED] EXHIBIT "B" to Agreement of Lease by and between St. Barnabas Limited Partnership, Landlord and Constellation Properties, Inc., Tenant RULES AND REGULATIONS To the extent that any of the following Rules and Regulations, or any Rules and Regulations subsequently enacted conflict with the provisions of the Lease, the provisions of the Lease shall control. 1. Tenant shall not obstruct or permit its agents, clerks or servants to obstruct, in any way, the sidewalks, entry passages, corridors, halls, stairways or elevators of the Building, or use the same in any other way than as a means of passage to and from the offices of Tenant; bring in, store, test or use any materials in the Building which could cause a fire or an explosion or produce any fumes or vapor; make or permit any improper noises in the Building; smoke in the elevators; throw substances of any kind out of the windows or doors, or down the passages of the Building, in the halls or passageways; sit on or place anything upon the window sills; or clean the windows. 2. Waterclosets and urinals shall not be used for any purpose other than those for which they were constructed; and no sweepings, rubbish, ashes, newspaper or any other substances of any kind shall be thrown into them. Waste and excessive or unusual use of electricity or water is prohibited. 3. Tenant shall not (i) obstruct the windows, doors, partitions and lights that reflect or admit light into the halls or other places in the Building, or (ii) inscribe, paint, affix, or otherwise display signs, advertisements or notices in, on, upon or behind any windows or on any door, partition or other part of the interior or exterior of the Building without the prior written consent of Landlord which shall not be unreasonably withheld. If such consent be given by Landlord, any such sign, advertisement, or notice shall be inscribed, painted or affixed by Landlord, or a company approved by Landlord, but the cost of the same shall be charged to and be paid by Tenant, and Tenant agrees to pay the same promptly, on demand. 4. No contract of any kind with any supplier of towels, water, ice, toilet articles, waxing, rug shampooing, venetian blind washing, furniture polishing, lamp servicing, cleaning of electrical fixtures, removal of waste paper, rubbish or garbage, or other like service shall be entered into by Tenant, nor shall any vending machine of any kind be installed in the Building, without the prior written consent of Landlord, which consent of Landlord shall not be unreasonably withheld. 5. When electric wiring of any kind is introduced, it must be connected as directed by Landlord, and no stringing or cutting of wires will be allowed, except with the prior written consent of Landlord which shall not be unreasonably withheld, and shall be done only by contractors approved by Landlord. The number and location of telephones, telegraph instruments, electric appliances, call boxes, etc., shall be subject to Landlord's approval. No tenants shall lay linoleum or other similar floor covering so that the same shall be in direct contact with the floor of the Premises; and if linoleum or other similar floor covering is desired to be used, an interlining of builder's deadening felt shall be first affixed to the floor by a paste or other material, the use of cement or other similar adhesive material being expressly prohibited. 6. No additional lock or locks shall be placed by Tenant on any door in the Building, without prior written consent of Landlord. Two keys will be furnished Tenant by Landlord; two additional keys will be supplied to Tenant by Landlord, upon request, without charge; any additional keys requested by Tenant shall be paid for by Tenant. Tenant, its agents and employees, shall not have any duplicate keys made and shall not change any locks. All keys to doors and washrooms shall be returned to Landlord at the termination of the tenancy, and in the event of any loss of any keys furnished, Tenant shall pay Landlord the cost thereof. 7. Tenant shall not employ any person or persons other than Landlord's janitors for the purpose of cleaning the Premises, without prior written consent of Landlord which shall not be unreasonably withheld. Landlord shall not be responsible to Tenant for any loss of property from the Premises however occurring, or for any damage done to the effects of Tenant by such janitors or any of its employees, or by any other person or any other cause. 8. No bicycles, vehicles or animals of any kind shall be brought into or kept in or about the Premises. 9. Tenant shall not conduct, or permit any other person to conduct, any auction upon the Premises; manufacture or store goods, wares or merchandise upon the Premises, without the prior written approval of Landlord, except the storage of usual supplies and inventory to be used by Tenant in the conduct of its business; permit the Premises to be used for gambling; make any unusual noises in the Building; permit to be played any musical instrument in the Premises; permit to be played any radio, television, recorded or wired music in such a loud manner as to disturb or annoy other tenants; or permit any unusual odors to be produced upon the Premises. Tenant shall not permit any portion of the Premises to be used for the storage, manufacture, or sale of intoxicating beverages, narcotics, tobacco in any form, or as a barber or manicure shop. 10. No awnings or other projections shall be attached to the outside walls of the Building. No curtains, blinds, shades or screens shall be attached to or hung in, or used in connection with, any window or door of the Premises, without the prior written consent of Landlord which consent shall not be unreasonably withheld. Such curtains, blinds and shades must be of a quality, type, design, and color, and attached in a manner reasonably approved by Landlord. 11. Canvassing, soliciting and peddling in the Building are prohibited, and Tenant shall cooperate to prevent the same. 12. There shall not be used in the Premises or in the Building, either by Tenant or by others in the delivery or receipt of merchandise, any hand trucks except those equipped with rubber tires and side guards, and no hand trucks will be allowed in passenger elevators. 13. Tenant, before closing and leaving its Premises, shall ensure that all entrance doors to same are locked. 14. Landlord shall have the right to prohibit any advertising by Tenant which in Landlord's opinion tends to impair the reputation of the Building or its desirability as a building for offices, and upon written notice from Landlord, Tenant shall refrain from or discontinue such advertising. 15. Landlord hereby reserves to itself any and all rights not granted to Tenant hereunder, including, but not limited to, the following rights which are reserved to Landlord for its purposes in operating the Building: (a) the exclusive right to the use of the name of the Building for all purposes, except that Tenant may use the name as its business address and for no other purpose; (b) the right to change the name or address of the Building, without incurring any liability to Tenant for so doing; (c) the right to install and maintain a sign or signs on the exterior of the Building; (d) the exclusive right to use or dispose of the use of the roof of the Building; (e) the right to limit the space on the directory of the Building to be allotted to Tenant; (f) the right to grant to anyone the right to conduct any particular business or undertaking in the Building. 16. As used herein the term "Premises" shall mean and refer to the "Premises" as defined in Section 1 of the Lease. 17. Tenant shall not operate space heaters or other heating or ventilating equipment without the express prior written consent of Landlord in each instance first obtained. Tenant shall not install or operate any electrical equipment, appliances or lighting fixtures in the Premises which are not listed and labeled by Underwriter's Laboratories or other testing organization acceptable to Landlord. EXHIBIT "C" to Agreement of Lease by and between St. Barnabas Limited Partnership, Landlord and Constellation Properties, Inc., Tenant SCHEDULE OF TENANT IMPROVEMENTS Landlord shall deliver the Premises in "as is" condition and shall not be required to make any alterations to the Premises. EXHIBIT "D" to Agreement of Lease by and between St. Barnabas Limited Partnership, Landlord and Constellation Properties, Inc., Tenant ESTOPPEL CERTIFICATE Premises: One Constellation Centre 6009 Oxon Hill Road Oxon Hill, Maryland 20745 Lease dated:____, 199_ , between ST. BARNABAS LIMITED PARTNERSHIP, Landlord, and CONSTELLATION PROPERTIES, INC., Tenant. The undersigned, the Tenant under the above Lease, hereby certifies to ___________________________ to induce_____________ to loan certain funds to Landlord/_____________ to invest certain funds in the Landlord pursuant to Landlord's Limited Partnership Agreement, that said Lease is presently in full force and effect and unmodified; that the term thereof commenced on__________________ , 19 ____ and full rental is now accruing thereunder; in addition to the minimum rent payable under the Lease, Tenant is paying the additional rents as required thereby; that the undersigned accepted possession of said premises on__________________ , and that any improvements required by the terms of said Lease to be made by the Landlord have been completed to the satisfaction of the undersigned; that no rent under said Lease has been paid beyond ____________________ and that the undersigned, as of this date, has no charge, lien or claim of offset under said Lease or otherwise, against rents or other charges due or to become due thereunder, except as to the security deposits, if any, listed below and to the knowledge of the undersigned, there is no default by the Landlord under the Lease. Tenant Deposit held by Landlord: $_____________. WITNESS OR ATTEST: TENANT: - ----------------- By: (SEAL) ------------------- Title: ----------------