Document:

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                                                                   Exhibit 10.11

                                                  July 16, 1997

William Langdon
2600 Robert Trent Jones Drive
#934
Orlando, FL  32835

Re:  Settlement Agreement and Release of All Claims

Dear Bill:

     This letter confirms the settlement terms that you and I have negotiated
regarding any and all disputes relating to your employment with Onesoft Corp,
(Onesoft), formerly Global Exchange, Incorporated, which shall be deemed for
purposes of this Settlement Agreement and Release of All Claims to include and
any of its current or former divisions, affiliates, subsidiaries and related
entities, and its and their respective current or former officers, directors,
employees, agents, successors and assigns, including specifically and without
limitation, Mr. William L. Robertson, (the "Company"). As more fully set forth
below, the Company shall provide you with settlement pay in exchange for certain
agreements by you.

     1.   Settlement Pay. Commencing on the fifteenth of the month after ONESOFT
          ---------------
receives a copy of this Agreement executed by you (the "Effective Date"), the
Company will provide you with the following Settlement Pay:

     (i)  Settlement Pay in the gross amount of $80,000.00 (less state, federal
          and other employment related deductions) shall be in sixteen (16)
          equal installments of $5,000 (less deductions) pursuant to a monthly
          schedule to be determined by the Company, provided, however, that the
          Company shall make such installment payments in at least sixteen (16)
          of the twenty (20) months that follow payment of the first installment
          and shall have paid the full amount of Settlement Pay ($80,000 less
          deductions) within twenty (20) months of the date it pays the first
          installment. The first and second installments shall be paid to the
          law firm of Mason, Ketterman, & Morgan. All subsequent installments
          shall be paid directly to you. The first installment shall be paid on
          the seventeenth day of July, 1997. In any subsequent month in which
          ONESOFT elects to make a payment, it shall pay the installment by the
          fifteenth day of the month.

     (ii) ONESOFT agrees to make an additional payment of $30,000 to you within
          sixty (60) days of any initial public offering or acquisition of
          ONESOFT. For the purposes of this Section 1(ii), an acquisition shall
          be defined as the acquisition of fifty-one percent or more of the
          Company by a third party entity.

     You acknowledge and agree that the Settlement Pay provided herein is not
otherwise due or owing to you under any Company employment agreement (oral or
written) or Company policy or practice, nor is this Settlement Pay intended to,
and shall not, constitute a severance plan, and shall confer no benefit on
anyone other than the parties hereto. You further acknowledge that except for
the specific financial consideration set forth in this Agreement, you have
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been paid and provided all wages, commissions, bonuses, vacation pay, holiday
pay and any other form of compensation or benefit that may be due to you now or
which would have become due in the future in connection with your employment
with or separation of employment from the Company.

     2.   Confidentiality: You hereby agree and acknowledge the following:
          ---------------

     (i)  that you have returned to the Company all of its documents (and any
     copies thereof) and property, and that you otherwise shall abide by any and
     all common law and/or statutory obligations relating to the protection and
     non- disclosure of the Company's trade secrets and/or confidential and
     proprietary documents and information;

     (ii) that all information relating in any way to the subject matter of this
     Agreement, including the terms, amounts and fact of this Agreement, shall
     be held confidential by you and shall not be publicized or disclosed to any
     person (other than an immediate family member, legal counsel or financial
     advisor, provided that any such individual to whom disclosure is made
     agrees to be bound by these confidentiality obligations), business entity
     or government agency (except as mandated by state or federal law).

     3.   No Disparagement. You hereby agree that you will not make any
          ----------------
statements that are professionally or personally disparaging about, or adverse
to, the interests of the Company including, but not limited to, any statements
that disparage any person, product, service, finances, financial condition,
capability or any other aspect of the business of the Company, or engage in any
conduct which is intended to harm professionally or personally the reputation of
the Company.

     ONESOFT hereby agrees that the Officers, Directors, and Employees of the
Company will not make any statements that are professionally or personally
disparaging about, or adverse to your interests, including, but not limited to
any statements that disparage you personally or professionally. Nor shall the
Officers, Directors, or Employees of the Company engage in any conduct which is
intended to harm your reputation, professionally or personally.

     4.   Release of Claims: You hereby agree and acknowledge that by signing
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this letter and accepting the offer of Settlement Pay provided for in Section 1
and other good and valuable consideration provided for in this letter, you are
waiving your right to assert against the Company any form of legal claim of any
kind whatsoever from the beginning of time through the Effective Date of this
Agreement. Your waiver and release herein is intended to bar any form of legal
claim, charge, complaint or any other form of action (jointly referred to as
"Claims") against the Company seeking any form of relief, including, without
limitation, equitable relief (whether declaratory, injunctive or otherwise), the
recovery of any damages or any other form of monetary recovery whatsoever
(including, without limitation, back pay, front pay, compensatory damages,
emotional distress damages, punitive damages, attorneys fees and any other
costs) against the Company, from the beginning of time through the Effective
Date.

     Without limiting the foregoing general waiver and release, you specifically
waive and release the Company from any Claim arising from or related to your
employment relationship with the Company, the offer thereof or the termination
thereof, including, without limitation:

     **   Claims under any state or federal discrimination, fair employment
          practices or other employment related statute, regulation or executive
          order (as they may have been amended through the Effective Date)
          prohibiting discrimination or harassment based

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          upon any protected status including, without limitation, race,
          national origin, age, gender, marital status, disability, veteran
          status or sexual orientation. Without limitation, specifically
          included in this paragraph are any Claims arising under the federal
          Age Discrimination in Employment Act, the Older Workers Benefit
          Protection Act, the Civil Rights Acts of 1866 and 1871, Title VII of
          the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal
          Pay Act, the Americans With Disabilities Act and any similar Virginia
          or other state statute.

     **   Claims under any other state or federal employment related statute,
          regulation or executive order (as they may have been amended through
          the Effective Date) relating to wages, hours or any other terms and
          conditions of employment. Without limitation, specifically included in
          this paragraph are any Claims arising under the Fair Labor Standards
          Act, the Family and Medical Leave Act of 1993, the National Labor
          Relations Act, the Employee Retirement Income Security Act of 1974,
          the Consolidated Omnibus Budget Reconciliation Act of 1985 (COBRA) and
          any similar Virginia or other state statute.

     **   Claims under any state or federal common law theory including, without
          limitation, wrongful discharge, breach of express or implied contract,
          promissory estoppel, unjust enrichment, breach of a covenant of good
          faith and fair dealing, violation of public policy, defamation,
          interference with contractual relations, intentional or negligent
          infliction of emotional distress, invasion of privacy,
          misrepresentation, deceit, fraud or negligence.

     **   Any other Claim arising under local, state or federal law.

     You also agree to take promptly all steps necessary to withdraw and
voluntarily dismiss with prejudice and in its entirety any Claim previously
filed against the Company in any court, agency or forum. Without limiting the
foregoing, you also agree to execute and file in court promptly the attached
Notice of Dismissal in the matter of William Langdon v. Global Exchange, Inc.
                                     ----------------------------------------
and William L. Robertson, CA No. 96-1724-A, United States District Court for the
------------------------
Eastern District of Virginia. (See Exhibit A). You also agree to mail promptly a
copy of this executed Notice of Dismissal to Anna B. Boyer, Esq., counsel for
the Company, at the following address:

               Anna B. Boyer, Esq.
               Mintz, Levin, Cohn, Ferris, Glovsky & Popeo, P.C.
               1 Financial Center
               Boston, MA 02111
               (617) 542-6000

     Notwithstanding the foregoing, this Section shall not release the Company
from any obligation expressly set forth in this Agreement.

     5.   Breach. The breach by you of any of the covenants in Sections one
          ------
through four of this Agreement shall constitute a material breach of this
Agreement and shall relieve the Company of any further obligations hereunder
and, in addition to any other legal or equitable remedy available to it, shall
entitle the Company to recover any monies already paid to you pursuant to
Section 1 of this Agreement.

     6.   Jurisdiction. You hereby consent to the jurisdiction of the state and
          -------------
federal courts of the Commonwealth of Virginia, and any action by you relating
to this Agreement shall be brought only in the Commonwealth of

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Virginia before a judge sitting without a jury.

     7.   Entire Agreement/Choice of Law/Full Agreement. This Agreement
          ----------------------------------------------
supersedes any and all prior oral and/or written agreements, and sets forth the
entire agreement between you and the Company, provided, however, that your
obligations set forth in any confidentiality, non-disclosure or non-competition
agreements with the Company shall remain in effect. No variations or
modifications hereof shall be deemed valid unless reduced to writing and signed
by the parties hereto. This Agreement shall take effect as an instrument under
seal and shall be governed by and construed in accordance with the laws of the
Commonwealth of Virginia, excluding its choice of law provisions. The provisions
of this Agreement are severable, and if for any reason any part hereof shall be
found to be unenforceable, the remaining provisions shall be enforced in full.

     It is the Company's desire and intent to make certain that you fully
understand the provisions and effects of this letter. To that end, you have been
encouraged and given the opportunity to consult with legal counsel for the
purpose of reviewing the terms of this letter. Also, by executing this letter,
you are acknowledging that you have been afforded sufficient time to understand
the terms and effects of this letter, that your agreements and obligations
hereunder are made voluntarily, knowingly and without duress, and that neither
the Company nor its agents or representatives have made any representations
inconsistent with the provisions of this letter.

     If the foregoing correctly sets forth our understanding, please sign, date
and return the enclosed copy of this letter to me.

                                             Very truly yours,

                                             /s/ James W. MacIntyre, IV

                                             ONESOFT, INCORPORATED

                                             By:  James W. MacIntyre IV
                                                  CEO & President

Confirmed and Agreed:

/s/ William Langdon
--------------------------------
William Langdon

Dated: July 18, 1997

Cc:  Roy L. Mason
     Mason, Ketterman, & Morgan

     James A. Kirkland
     Mintz, Levin, Cohn, Ferris<PAGE>

                                                                   Exhibit 10.12

                              AGREEMENT OF LEASE

     THIS AGREEMENT OF LEASE (the "LEASE") made 16th day of July, 1998, by and
between ANNANDALE FINANCIAL CENTER JOINT VENTURE, a Maryland General
Partnership, (hereinafter referred to as "LANDLORD"), and ONESOFT CORPORATION, a
DELAWARE Corporation, (hereinafter referred to as "TENANT").

     WITNESSETH, that for and in consideration of the rent hereinafter reserved
and of the mutual covenants and agreements hereinafter set forth, Landlord and
Tenant do hereby mutually agree as follows:

PREMISES            1. Landlord does hereby lease to Tenant, and Tenant does
                    hereby lease from Landlord, for the term and upon the
                    covenants and conditions hereinafter set forth, the Premises
                    described as follows: Approximately FOUR THOUSAND FIVE
                    HUNDRED NINETY-FIVE (4,595) RENTABLE SQUARE FEET known as
                    Suite 460 located on the fourth floor of the Building known
                    as "ANNANDALE FINANCIAL CENTER", located at 7010 Little
                    River Turnpike, Annandale, Virginia 22203 (hereinafter
                    referred to as the "Premises").

TERM                2. (a) The term of this Lease shall commence on the earlier
                    of (i) the "Substantial Completion" of Landlord' s
                    construction of the Premises or (ii) September 1, 1998 (the
                    "LEASE COMMENCEMENT DATE"), and expiring FIVE (5) YEARS
                    after the Lease Commencement Date (the "EXPIRATION DATE").
                    The period commencing with the Lease Commencement Date (on
                    the first day of the next calendar month in the event the
                    Lease Commencement Date does not occur on the first day of a
                    month) and ending on the last day of the twelfth calendar
                    month thereafter shall constitute the first "Lease Year" as
                    such term is used herein. Each successive full twelve (12)
                    month period during the Lease Term shall constitute a "Lease
                    Year" and any portion of the Lease Term remaining after the
                    last twelve month period during said Lease term shall
                    constitute the last "Lease Year" for the purpose of this
                    lease.

                    (b) The term "Substantial Completion" shall mean that date
                    upon which construction of the improvements to the Premises
                    (as outlined in Paragraph 28. herein) have been
                    substantially completed and approved by local officials
                    having jurisdiction, subject only to normal punch list items
                    that will not materially or adversely interfere with
                    Tenant's business operations.

                    Notwithstanding anything herein to the contrary, Tenant
                    shall have the opportunity to enter the Premises during the
                    fifteen (15) day period prior to the Lease Commencement Date
                    for the purpose of installing computer, data, telephone and
                    television cable lines, special equipment, furniture,
                    fixtures, telephones and other personal property, providing
                    such early entrance does not unreasonably interfere with
                    Landlord's construction in

                                                                      /s/ FH, SS
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                    Premises. Any occupancy prior to the Lease Commencement Date
                    shall be pursuant to all the terms and conditions of this
                    Lease, except that rent shall not commence until the Lease
                    Commencement Date. Within fifteen (15) days after the Lease
                    Commencement Date, Landlord and Tenant shall execute a
                    Certificate of Commencement.

RENT                3. (a) During and for the Term hereof, commencing on the
                    Lease Commencement Date, Tenant covenants and agrees to pay
                    Landlord for the Premises, without notice or demand and
                    without deduction, set off or abatement, a fixed minimum
                    guaranteed base rent (hereinafter sometimes referred to as
                    the "BASE RENT") payable in monthly installments, in
                    advance, (hereinafter sometimes referred to as "MONTHLY BASE
                    RENT" ) as follows:

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    Lease    Annual Base     Monthly Base    Rent Per Square
    Year        Rent             Rent             Foot

      1      $ 91,900.00      $7,658.33          $20.00
      2        96,495.00       8,041.25           21.00
      3       101,319.75       8,443.31           22.05
      4       106,385.74       8,865.48           23.15
      5       111,705.02       9,308.75           24.31
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                    Tenant shall pay all rent to Landlord at the office of
                    Landlord, or to such other party or at such other address as
                    Landlord may designate from time to time by written notice
                    to Tenant. Rent shall be paid on or before the first day of
                    each and every calendar month, without prior notice, during
                    the Term hereof, provided, however that the Monthly Base
                    Rent for the First month of the Term shall be payable upon
                    execution of this Lease.

                    (b) Tenant covenants and agrees to pay to Landlord a Late
                    Fee equal to FIVE percent (5%) of the Monthly Base Rent if
                    any such payment is not received by Landlord within TEN (10)
                    days of their due date. In addition, all delinquent payments
                    due Landlord, including but not limited to, rent and
                    additional rent, shall bear interest at the rate of TWO
                    percent (2%) per annum above the "Prime Rate" as published
                    by Wall Street Journal, New York, New York, as of the date
                    such payment became due, for the period beginning on the
                    date such payment became due to the date of payment thereof
                    by Tenant, provided, however, that nothing herein contained
                    shall be construed or implemented in such a manner as to
                    allow Landlord to charge or receive interest in excess of
                    the maximum rate then

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                    allowed by law. All such late fees and interest charges
                    shall be deemed additional rent due hereunder and shall be
                    payable with the next installment of Monthly Base Rent.

OPERATING           4.                  INTENTIONALLY DELETED
EXPENSES AND
REAL ESTATE
TAXES

DELAYED             5. (a) If Landlord shall be unable to give possession of the
POSSESSION          Premises on the Lease Commencement Date specified in Section
                    2 of this Lease for any reason, such failure to do so shall
                    not affect or impair the validity of this Lease or the
                    obligations of Tenant hereunder, except as expressly
                    provided herein, and Landlord shall not be subject to any
                    liability for damages for such failure to give possession on
                    said date. In such event, Landlord shall notify Tenant in
                    writing setting forth a new Lease Commencement Date as
                    specified in Section 2 of this Lease. Unless such delay is
                    due to the fault of Tenant, the Base Rent reserved and
                    covenanted to be paid herein shall not commence until the
                    date that possession of the Premises is given to Tenant, or
                    the Premises are available for occupancy by Tenant and
                    Tenant has been so notified by Landlord, whichever shall
                    first occur.

                    (b) If for any reason the Landlord shall be unable to give
                    possession of the Premises to Tenant more than TWO (2)
                    months after the Lease Commencement Date specified in
                    Section 2, then Tenant shall have the option to cancel this
                    Lease after such date by giving THIRTY (30) days' prior
                    written notice of such termination to the other party. If
                    Landlord shall tender possession of the Premises to Tenant
                    after Tenant has given notice such notice but prior to the
                    expiration of such THIRTY (30) day period, any notice given
                    by Tenant shall thereupon be nullified. Upon any such
                    cancellation becoming effective, Landlord and Tenant shall
                    be entirely relieved of the obligations hereunder, and any
                    security deposit given by Tenant to Landlord shall be
                    returned to Tenant.

USE OF              6. Tenant shall use and occupy the Premises solely as
PREMISES            general office space, provided that such use(s) is in
                    accordance with applicable zoning and other local
                    governmental regulations. Without the prior written consent
                    of Landlord, the Premises shall not be used for any other
                    purposes or uses whatsoever. Tenant shall not use or occupy
                    the Premises for any unlawful purpose, and shall comply with
                    all present and future laws, ordinances, regulations, and
                    orders of the United States of America, Commonwealth of
                    Virginia, County of Fairfax, and any other public or
                    quasi-public authority having jurisdiction over the
                    Premises.

ASSIGNMENT          7. (a) Tenant shall not assign, transfer, mortgage, or
AND                 otherwise encumber this Lease, or sublet, rent, or permit
                    occupancy or use of the

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SUBLETTING          Premises, or any part thereof, without obtaining the prior
                    written consent of Landlord, which shall not be unreasonably
                    withheld, nor shall any subletting, assignment or transfer
                    of this Lease or the right of occupancy hereunder be
                    effected by operation of law or in any manner other than
                    with the prior written consent of Landlord. Any assignment
                    or subletting or transfer with or without Landlord's consent
                    shall not be construed as a waiver or release of Tenant from
                    liability hereinbefore the payments of rent or the
                    performances and observance of any of the terms and
                    conditions of this Lease. The collection or acceptance of
                    rent from any assignee, subtenant, or occupant shall not
                    constitute a waiver or release of Tenant from any covenant
                    or obligation contained in this Lease, nor shall any
                    assignment or subletting be construed to relieve Tenant from
                    the obligation to obtain the consent in writing of Landlord
                    to any further assignment or subletting.

                    (b) In the event that Tenant desires to assign or sublet all
                    or a portion of the Premises, Tenant shall give to Landlord
                    THIRTY (30) days written notice of Tenant's intention to do
                    same, the name, address and a current financial statement of
                    the proposed subtenant or assignee, and a copy of the
                    proposed assignment or sublease, specifying, among other
                    items, the proposed use, the term and the rent of the
                    proposed sublease or assignment. Within TEN (10) days after
                    receipt of said notice, Landlord shall give written notice
                    to Tenant, stating whether Landlord approves or disapproves
                    the proposed assignment or sublease, Tenant may sublet or
                    assign the Premises only after first obtaining the written
                    consent of Landlord, which consent shall not be unreasonably
                    withheld as set forth hereinabove.

                    (c) In the event that Tenant defaults hereunder, Tenant
                    hereby assigns to Landlord the rent due from any subtenant
                    or assignee of Tenant and hereby authorizes each such
                    subtenant or assignee to pay said rent directly to Landlord.

MAINTENANCE         8. Tenant shall keep the Premises, fixtures and equipment
BY TENANT           therein in clean, safe sanitary and good order, will suffer
                    no waste or injury thereto, condition and will, at the
                    expiration or other termination of this Lease, surrender the
                    same, broom clean, in the same order and condition in which
                    they are on the Lease Commencement Date, ordinary wear and
                    tear excepted. Maintenance and repair of all equipment
                    and/or fixtures within or for the exclusive benefit of the
                    Premises, including, but not limited to, kitchen fixtures,
                    special air conditioning equipment, bathroom fixtures,
                    computers, or any other type of equipment or improvements,
                    together with related plumbing, electrical, or other utility
                    services, whether installed by Tenant or by Landlord on
                    behalf of Tenant, shall be the sole responsibility of
                    Tenant, and Landlord shall have no obligation in connection
                    therewith.

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HOURS OF            9. The regularly scheduled hours of operation for Building
OPERATION           shall be between EIGHT O'CLOCK (8:00 a.m.) to SIX O'CLOCK
                    (6:00 p.m.), Monday through Friday, and eight O'CLOCK (8:00
                    a.m.) to ONE O'CLOCK (1:00 p.m.) Saturday. Holidays on which
                    said water for the HVAC system shall not be provided except
                    at additional cost are: New Year's Day, Washington's
                    Birthday, Memorial Day, Independence Day, Labor Day,
                    Thanksgiving Day, Christmas Day, and Easter Sunday. Such
                    holidays shall be observed on the dates on which the same
                    are observed by the federal government. If Tenant desires
                    air conditioning/heat and or other utilities or services
                    beyond the hours of operation as hereinabove set forth, and
                    of mutually satisfactory written agreements are made with
                    Landlord, or its agent, not less than TWENTY-FOUR (24) hours
                    in advance of the requirement, Landlord shall use its best
                    efforts to furnish such air conditioning/heating and/or
                    other utilities or services to tenant, and Tenant agrees to
                    pay Landlord the additional costs of such services in an
                    amount equal to ONE HUNDRED TEN percent (110%) of the total
                    direct costs of providing such additional services on an
                    overtime basis. Provided, however, that Landlord and its
                    agent shall not be liable for failure to furnish or for
                    suspension or delay in furnishing any or all of such
                    services caused by breakdown, maintenance or repair work,
                    strike, riot, civil commotion, or any other cause or reason
                    whatsoever beyond the control of Landlord.

                    Building Services. Throughout the Term, Landlord agrees that
                    -----------------
                    the Building will be maintained in a manner befitting a
                    first-class rental office building in the Annandale,
                    Virginia area and that it will furnish, or cause to be
                    furnished, the following services to the Premises and
                    Building, excluding emergency conditions beyond Landlord
                    control:

                    (a) Normal and usual cleaning and janitorial services after
                    5:00 p.m. on business days.

                    (b) Automatically operated elevator services TWENTY-FOUR
                    (24) hours a day, SEVEN (7) days a week, 365 days a year;

                    (c) All electric bulbs and fluorescent tubes in light
                    fixtures in the public areas of the Building and all
                    standard light bulbs and fluorescent tubes in the Premises;

                    (d) An intercom type security access system located at the
                    front door of the Building. Tenant shall be given access
                    cards into the Building 24 hours a day, 7 days a week, 365
                    days a year;

                    (e) Normal and usual maintenance of the life-safety systems,
                    the elevators, the Garage and all Building improvements and
                    facilities;

                    (f) Heating, ventilating and air-conditioning to the
                    Premises between

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<PAGE>

                    the hours of 8:00 a.m. and 6:00 p.m. on business days and
                    between the hours of 8:00 a.m. to 1:00 p.m. Saturday,
                    excluding holidays;

TENANT              10. (a) Tenant shall not make or permit anyone to make any
ALTERATIONS         alterations, additions, or improvements, structural or
                    otherwise, or install any fixtures (hereinafter collectively
                    referred to as "Alterations"), in or to the Premises or the
                    Building without the prior written consent of Landlord. All
                    of such Alterations permitted by Landlord must conform to
                    all rules and regulations established from time to time by
                    the Underwriters' Association of the local area and by the
                    Landlord and conform to all requirements of the Federal,
                    State and local governments. Prior to the commencement of
                    work on any Alterations, the Landlord's written approval
                    must be obtained as to (i) the contractor(s) and
                    subcontractor(s) selected to perform such work, and (ii)
                    comprehensive plans and Specifications showing all the
                    proposed Alterations, including detailed descriptions of the
                    effect of the proposed Alterations on the mechanical and
                    electrical systems of the Building. Landlord shall have the
                    right to stop such work if the Landlord or its designated
                    agent determines that such work is not being done in a
                    workmanlike manner or in accordance with the plans and
                    specifications provided to Landlord. In such event, Tenant
                    shall promptly correct the problem(s) which give rise to the
                    work stoppage, and if Tenant fails to do so within a time
                    period determined by Landlord to be reasonable, then
                    Landlord may, at its sole option, correct such problem(s),
                    or complete the Alterations, or remove the Alterations and
                    restore the Premises to their original condition, and Tenant
                    shall be liable for the costs of such action as additional
                    rent. Copies of all plats, plans, sketches, permits,
                    samples, etc. which are prepared or obtained in the course
                    of such Alterations shall be provided to the Landlord or its
                    designated agent no later than TEN (10) days after such are
                    prepared or obtained. The Tenant agrees to pay to the
                    Landlord or its designated agent a reasonable inspection fee
                    and to allow inspection from time to time during the period
                    of construction of all Alterations. In addition, Tenant
                    agrees to furnish "as built" plans and specifications for
                    all Alterations within a reasonable period of time after
                    completion of Alterations, and to pay to Landlord, or its
                    designated agent, a reasonable fee for updating the master
                    reproducible Building blueprint to show the Alterations.

                    (b) Prior to commencing construction on any Alterations
                    approved by Landlord, Tenant agrees to obtain and deliver to
                    Landlord written and unconditional waivers of mechanic's and
                    materialman's liens upon the Property for all work, labor
                    and services to be performed and materials to be furnished,
                    by them in connection with such work, signed by all
                    contractors, subcontractors, materialmen, and laborers to
                    become involved in such work. If notwithstanding the
                    foregoing, any mechanic's or materialmen's lien is filed
                    against the Property for work claimed to have been done for,
                    or materials claimed to have been furnished to,

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<PAGE>

                    Tenant, such lien shall be discharged by Tenant within ten
                    (10) days thereafter, at Tenant's sole cost and expense, by
                    the payment thereof or by filing any bond required by law.
                    If Tenant shall fail to discharge any such mechanic's or
                    materialman's lien, Landlord may, at its option, its written
                    consent to Tenant's making any such Alterations, such
                    written consent shall not be deemed to be an agreement or
                    consent by landlord to subject Landlord's interest in the
                    Property to any mechanic's or materialman's liens which may
                    be filed in respect of any such Alterations Made by or on
                    behalf of Tenant .discharge the same and treat the cost
                    thereof and any legal expenses incurred in connection
                    therewith, as additional rent payable with the installment
                    of Monthly Base Rent next becoming due; it being hereby
                    expressly covenanted and agreed that such discharge by
                    Landlord shall not be deemed to waive or release the default
                    of Tenant in not discharging the same. It is understood and
                    agreed by Landlord and Tenant that any such Alterations
                    shall be constructed on behalf of Tenant. It is further
                    understood and agreed that, in the event Landlord shall give
                    its written consent to Tenant's making any such Alterations,
                    such written consent shall not be deemed to be an agreement
                    or consent by landlord to subject Landlord's interest in the
                    Property to any mechanic's or materialman's liens which may
                    be filed in respect of any such Alterations made by or on
                    behalf of Tenant.

                    (e) All Alterations, including wall-to-wall carpet and wall
                    covering, to, in or upon the Premises shall, unless the
                    Landlord elects otherwise, become the property of Landlord
                    and shall remain upon the Premises and be surrendered with
                    Premises at the expiration or termination of this Lease, or
                    any renewal or extension period, without disturbance,
                    molestation or injury. Should the Landlord elect that
                    Alterations made by the Tenant upon the Premises be removed
                    upon the expiration or termination of this Lease, or any
                    renewal period, the Tenant hereby agrees to cause same to be
                    removed at the Tenant's sole cost and expense, and to
                    restore the Premises to the original improved condition, on
                    or before the expiration or termination of this Lease or any
                    renewal period. Should Tenant fail to remove the same or
                    restore the Premises, the Landlord may cause same to be
                    removed and/or the Premises to be restored at the Tenant's
                    expense, and the Tenant hereby agrees to pay to the Landlord
                    the cost of such removal and/or restoration together with
                    any and all damages which the Landlord may suffer and
                    sustain by reason of the failure of the Tenant to remove the
                    same and/or restore the Premises as herein provided.

                    (f) If Tenant is not in default in the performance of any of
                    its obligations under this Lease, Tenant shall have the
                    right to remove, prior to the expiration of the Term of this
                    Lease, all movable equipment, furniture or furnishings which
                    are not affixed to the Premises or the Building and which
                    were installed in the Premises at the expense of Tenant. If
                    such property of Tenant is not removed by Tenant prior to
                    the

                                       7
<PAGE>

                    expiration or termination of this Lease, the same shall
                    become the property of Landlord and shall be surrendered
                    with the Premises as a part thereof, or, at Landlord's
                    option, Landlord may cause the same to be removed and the
                    Premises to be restored to their original improved
                    condition, and Tenant hereby agrees to pay to Landlord the
                    cost of such removal and restoration together with any and
                    all damages which Landlord may suffer and sustain by reason
                    of the failure of Tenant to remove the same and restore the
                    Premises or Building as herein provided.

ADVERTISING         11. Except as otherwise herein provided, Tenant agrees that
                    no sign, advertisement, display or notice shall be
                    inscribed, painted or affixed on any part of the outside or
                    inside of the Premises or Building, except on the
                    directories and doors of offices, and then only in such
                    size, color and style as the Landlord shall approve.
                    Landlord shall have the right to prohibit any advertisement,
                    or display of items of the Tenant, wherever display or
                    notice and may charge the Tenant for any costs incurred by
                    Landlord in connection with such removal.

DELIVERIES          12. No freight, furniture or other bulky matter of any
                    description shall be received into the Building or carried
                    in the elevators, except as approved by the Landlord. All
                    moving of furniture, material and equipment in the Building
                    outside the Premises must be with the prior written consent
                    of the Landlord and in accordance with Landlord's reasonable
                    rules and instructions; however, Landlord shall not be
                    responsible for any damage to, or charges for, moving the
                    same. Tenant agrees to remove promptly from the public
                    area(s) within or adjacent to the Building any of Tenant's
                    personal property there delivered or deposited. Landlord
                    shall have the right to prescribe the weight, method of
                    installation, and position of safes or other heavy fixtures
                    or equipment. All damage done to the Building by delivery,
                    maintaining or removal of any fixture or article of Tenant's
                    furniture or equipment, shall be repaired at the expense of
                    Tenant.

EQUIPMENT           13. Tenant shall not install or operate in the Premises any
                    electrically operated equipment or other machinery, except
                    typewriters, adding machines, copiers, personal computers,
                    and such other office machinery and equipment as is normally
                    used in the operation of Tenant's business, without
                    obtaining the prior written consent of Landlord, which shall
                    not be unreasonably withheld or delayed, but may be
                    conditioned upon the payment by Tenant of additional rent in
                    compensation for any excess consumption of water and/or
                    electricity as may result from the operation of said
                    equipment or machinery. Tenant shall not install any
                    equipment of any kind or nature which shall or may
                    necessitate changes, replacements, or additions to, or cause
                    an abnormal increase in its use of the water, plumbing,
                    heating, air conditioning, or electrical systems, which
                    serve the Premises, without the prior written consent of
                    Landlord. Such consent shall not be withheld unreasonably,
                    but may be conditioned

                                       8
<PAGE>

                    upon the payment of Tenant of the cost of such changes,
                    replacements, additions, or increased use. Notwithstanding
                    the foregoing, in the event that office equipment or
                    mechanical equipment used by Tenant in the Premises shall
                    cause noise or vibration that may be transmitted to any part
                    of the Building to such a degree as to be objectionable to
                    Landlord or any other tenant, Tenant shall install, at its
                    own expense, vibration eliminators or silencing devices
                    sufficient to eliminate such noise and/or vibration. Tenant
                    shall not install in the Premises any fixtures, equipment,
                    machinery, furniture or furnishings which place a load upon
                    the floor exceeding the designed floor load capacity.

INSPECTIONS;        14. Tenant agrees to allow Landlord, its agents or employees
ENTRY               to enter the Premises at all reasonable times to examine,
                    inspect or protect the same; to prevent damage or injury to
                    the same and/or to any other portion of the Building; to
                    make such alterations, additions, improvements and repairs
                    to the Premises or adjacent portions of the Building as
                    Landlord may deem necessary or desirable; or to exhibit the
                    same to prospective tenants during the last SIX (6) months
                    of the Term of this Lease, or any renewal or extension
                    period, or to prospective purchasers of the Building or any
                    portion thereof at any time. None of the same shall be
                    construed as an eviction, actual or constructive. The rent
                    reserved shall not abate while such alterations, additions,
                    improvements or repairs are being made, or because of such
                    inspections or exhibitions, whether by reason of loss or
                    interruption of Tenant's business or otherwise. Landlord
                    agrees to make all reasonable efforts to minimize any
                    disruption of Tenant's business by reason of such
                    activities. Landlord's right of entry for any purpose shall,
                    however, be subject to any State or Federal laws and
                    regulations that may currently enlist or may become
                    applicable because of any secret, confidential, or other
                    restricted activities carried on by tenant in the Premises.

INSURANCE           15. (a) Insurance Rating. Tenant will not conduct or permit
                            ----------------
                    to be conducted any activity other than normal office
                    business nor will Tenant place any equipment in or about the
                    Premises or the Property which will, in any way, increase
                    the rate of property and casualty or other insurance on the
                    Property. If any increase in the rate of property and
                    casualty insurance or other insurance is stated by any
                    insurance company or by the applicable Insurance Rating
                    Bureau to be due to any activity or equipment of Tenant in
                    or about the Premises or the Property, such statements shall
                    be conclusive evidence that the increase in such rate is due
                    to such activity or equipment, and, as a result thereof,
                    Tenant shall be liable for such increase and shall reimburse
                    Landlord therefor upon demand. Any such sum due Landlord
                    shall be considered additional rent payable hereunder.

                    (b) Liability Insurance. Tenant shall carry public liability
                        -------------------
                    insurance with a company or companies licensed to do
                    business in the

                                       9
<PAGE>

                    Commonwealth of Virginia and rated not lower than Level A,
                    Class XII, as rated in the most recent edition of "Best's
                    Key Rating Guide" for insurance companies. Said insurance
                    shall cover all liability of Tenant and its authorized
                    representatives arising out of and in connection with
                    Tenant's use or occupancy of the Premises and the Property.
                    Said insurance shall be in minimum amounts set forth in the
                    rules and regulations established by Landlord from time to
                    time such amounts to be reasonable for Tenant's type of
                    business; a copy of the current rules and regulations is
                    attached hereto as Exhibit A. Said insurance shall name
                    Landlord, and the building management agency as additional
                    insured, as their interests may appear, and shall contain an
                    endorsement that said insurance shall remain in full force
                    and effect notwithstanding that the insured has waived his
                    right of action against any party prior to the occurrence of
                    a loss. A current Certificate of Insurance from such insurer
                    shall be delivered to Landlord's agent prior to the Lease
                    Commencement Date and renewals thereof shall be delivered to
                    Landlord's agent at least THIRTY (30) days prior to the
                    expiration of any such policy. Each policy shall contain an
                    endorsement that will prohibit its cancellation prior to the
                    expiration of THIRTY (30) days after written notice to
                    Landlord of such proposed cancellation.

                    (c) Waiver of Subrogation. Each party hereby waives, and
                        ---------------------
                    shall have included in its liability insurance policies for
                    the Building and/or property insurance covering Tenant's
                    contents, furniture, furnishings, fixtures and other
                    property, appropriate clauses pursuant to which each party's
                    insurance carriers waive, all rights of subrogation against
                    the other party, its principals, agents and employees, with
                    respect to losses payable under such policies, or
                    appropriate clauses setting forth that such policies shall
                    not be invalidated should the insured waive in writing prior
                    to a loss any or all right of recovery against any party for
                    losses covered by such policies. If either party at any time
                    is unable to obtain inclusion of either of the clauses
                    described in the preceding sentence, then such party shall
                    have the other party named in such policies as an additional
                    insured, as their interests may appear. If either party
                    shall be named as an additional insured in accordance with
                    the foregoing provisions, and if the main insured shall not
                    be in default hereunder, and, if progress satisfactory to
                    Landlord is being made with regard to repairs to any damage
                    to the Premises or improvements therein, the additional
                    insured shall promptly endorse to the order of the main
                    insured, without recourse, any check, draft or order for the
                    payment of money representing the proceeds of any such
                    policy, or representing any other payment under such
                    policies, and the additional insured hereby irrevocably
                    waives any and all rights in and to such proceeds and
                    payments. Each party shall advise the other party promptly
                    as to the coverage or language of the clauses included in
                    its insurance policies pursuant to this paragraph and shall
                    notify the other party promptly of any cancellation or
                    change of the terms of any such policies which would affect
                    such clauses. All Certificates of Insurance

                                       10
<PAGE>

                    provided hereunder shall set forth the waiver of subrogation
                    provisions contained in the subject policy.

                    (d) Property and Casualty Insurance. Tenant covenants and
                        -------------------------------
                    agrees to maintain standard property and casualty insurance
                    covering its property located in, on or about the Premises.
                    Said insurance shall be replacement cost, all risk coverage
                    for all leasehold improvements other than the building
                    standard improvements. Tenant shall deliver a Certificate of
                    Insurance from its insurer to Landlord's agent prior to the
                    Lease Commencement Date, and renewals thereof shall be
                    delivered to Landlord's agent at least THIRTY (30) days
                    prior to the expiration of any such policy.

DAMAGES TO          16. All breakage, injury or damage to the Premises or to
PREMISES OR         Property, including damage to carpeting, wall finishes, and
BUILDING            other items of improvement thereto, in any way caused by
                    Tenant or its agents, employees, contractors, visitors,
                    guests and invitees, shall be repaired at the expense of the
                    Tenant, except those covered by standard fire and extended
                    coverage perils insurance. Landlord shall make, or cause to
                    be made, such necessary repairs, alterations and
                    replacements, structural, nonstructural or otherwise, and
                    any charge, costs or damages so incurred by the Landlord
                    shall be paid by the Tenant. Landlord shall be entitled to
                    regard such charges, costs or damages as additional rent,
                    payable with the installment of Monthly Base Rent next
                    becoming due under this Lease. This provision shall be
                    construed as an additional remedy granted to Landlord and
                    not in limitation of any other rights and remedies which
                    Landlord has or may have.

WAIVER OF           17. (a) Tenant's Property and Personal Injury. All personal
LIABILITY                   -------------------------------------
INDEMNITY           property of Tenant (for the purposes of this Section, the
                    term "Tenant" shall include Tenant, its agents, employees,
                    contractors, visitors, guests and invitees) contained in the
                    Premises shall be and remain there at the sole risk of
                    Tenant. Landlord and/or its agents and employees shall not
                    be liable for any accident or damage to property of Tenant
                    resulting from the use or operation of elevators, heating,
                    cooling, electrical or plumbing apparatus, water, steam, or
                    any other cause; nor shall they be liable for any personal
                    injury to Tenant arising from the use, occupancy and/or
                    condition of the Premises or Property unless such injury
                    shall directly result directly from the gross negligence or
                    willful misconduct of Landlord; nor shall they be liable in
                    any event for any interruption or loss of Tenant's business.
                    Notwithstanding any other language contained herein,
                    Landlord and/or its agents and employees shall not be liable
                    to Tenant for any loss, damage or injury to person or
                    property, even if the same is caused by their negligence or
                    willful misconduct, to the extent that Tenant is compensated
                    therefore by Tenant's insurance.

                                       11
<PAGE>

                    (b) Tenant's Indemnity. Tenant shall indemnify and hold
                        ------------------
                    Landlord and it's agents and employees harmless from all
                    loss, damage, liability, cost or expense incurred, suffered,
                    or claimed by any person or entity by reason of injury,
                    loss, or damage to any person, property or business
                    resulting from any default hereunder by Tenant, or from
                    Tenant's willful act, negligence or negligent or unlawful
                    use of the Premises or the Property or anything therein,
                    including but not limited to, water, steam, electricity, or
                    other facilities or equipment. Landlord and/or its agents
                    and employees assume no liability or responsibility
                    whatsoever with respect to the conduct and operation of the
                    business to be conducted by Tenant in the Premises, and
                    shall not be liable for any accident or injury to any person
                    or property which are caused by the conduct and operation of
                    Tenant's business. Tenant agrees to indemnify and hold
                    harmless Landlord, its agents and employees, against all
                    such claims.

BANKRUPTCY          18. All of the terms and provisions of this paragraph 18 are
                    made expressly subject to and governed by the provisions of
                    the United States Bankruptcy Code and the orders, rulings
                    and other determination of any bankruptcy court of
                    appropriate jurisdiction relating to the Tenant and/or this
                    Lease. Thus, any provision of this paragraph which is
                    contrary to or in any way inconsistent with the provisions
                    of the United States Bankruptcy Code or any order, ruling or
                    other determination of any bankruptcy court of appropriate
                    jurisdiction shall, be deemed invalid and of no force and
                    effect.

                    (a) In the event that Tenant shall become a Debtor under
                    Chapter 7 of the Bankruptcy Code, and the Trustee or Tenant
                    shall elect to assume this Lease for the purpose of
                    assigning the same or otherwise, such election and
                    assignment may only be made if all of the terms and
                    conditions of subsection (b) and subsection (d) of this
                    Section 18 are satisfied. If such Trustee shall fail to
                    elect or assume this Lease within sixty (60) days after the
                    filing of the Petition, this Lease shall be deemed to have
                    been rejected. Landlord shall be thereupon immediately
                    entitled to possession of the Premises without further
                    obligation to Tenant or Trustee, and this Lease shall be
                    canceled, but Landlord's right to be compensated for damages
                    in such liquidation proceeding shall survive.

                    (b) In the event that a Petition for reorganization or
                    adjustment of debts is filed concerning Tenant under
                    Chapters 11 and 13 the Bankruptcy Code, or a proceeding is
                    filed under Chapter 7 of the Bankruptcy Code and is
                    transferred to Chapter 11 or 13, the Trustee or Tenant, as
                    Debtor-In-Possession, must elect to assume this Lease within
                    SEVENTY-FIVE (75) days from the date of the filing of the
                    Petition under Chapters 11 or 13, or the Trustee or
                    Debtor-In-Possession shall be deemed to have rejected this
                    Lease. No election by the Trustee or Debtor-In-Possession to
                    assume this Lease, whether under Chapters 7, 11 or 13, shall
                    be effective unless each of the following conditions, which

                                       12
<PAGE>

                    Landlord and Tenant acknowledge are commercially reasonable
                    in the context of a bankruptcy proceeding of Tenant, have
                    been satisfied, and Landlord has so acknowledged in writing:

                         (1) The Trustee or the Debtor-in-Possession has cured,
                    or has provided Landlord adequate assurance (as defined
                    below) that:

                             (A) Within TEN (10) days from the date of such
                    assumption the Trustee will cure all monetary defaults under
                    this Lease; and

                             (B) Within THIRTY (30) days from the date of such
                    assumption the Trustee will cure all non-monetary defaults
                    under this Lease.

                         (2) The Trustee or the Debtor-in-Possession has
                    compensated, or has provided to Landlord adequate assurance
                    (as defined below) that within TEN (10) days from the date
                    of assumption, Landlord will be compensated for any
                    pecuniary loss incurred by Landlord arising from the default
                    of Tenant, the Trustee, or the Debtor-in-Possession as
                    recited in Landlord's written statement of pecuniary loss
                    sent to the Trustee or the Debtor-in-Possession.

                         (3) The Trustee or the Debtor-In-Possession has
                    provided Landlord with adequate assurance of the future
                    performance of each of Tenant's, Trustee's or
                    Debtor-In-Possession's obligations under this Lease;
                    provided, however, that:

                             (A) The Trustee or Debtor-In-Possession shall also
                    deposit with Landlord as security for the timely payment of
                    rent, an amount equal to THREE (3) months' base Rent and
                    other monetary charges accruing under this Lease; and

                             (B) If not otherwise required by the terms of this
                    Lease, the Trustee or Debtor-In-Possession shall also pay in
                    advance on the date Monthly Base Rent is payable,
                    ONE-TWELFTH (1/12) of Tenant's annual obligations under this
                    Lease for operating expenses real estate taxes, and similar
                    charges.

                             (C) The obligations imposed upon the Trustee or
                    Debtor-In-Possession shall continue with respect to Tenant
                    or any assignee of the Lease after the completion of
                    bankruptcy proceedings.

                    (4) The assumption of the Lease will not:

                             (A) Breach any provision in any other lease,
                    mortgage, financing agreement or other agreement by which
                    Landlord is bound

                                       13
<PAGE>

                    relating to the Building; or

                             (B) Disrupt, in Landlord's judgment, the tenant mix
                    of the Building or any other attempt by Landlord to provide
                    a specific variety of commercial tenants in the Building
                    which, in Landlord's judgment, would be most beneficial to
                    all of the tenants of the Building and would enhance the
                    image, reputation, and profitability of the Building.

                             (C) For purposes of this subsection (b), Landlord
                    and Tenant acknowledge that, in the context of a bankruptcy
                    proceeding of Tenant, at a minimum "adequate assurance"
                    shall mean:

                             (i) The Trustee or the Debtor-In-Possession has and
                    will continue to have sufficient unencumbered assets after
                    the payment of all secured obligations and administrative
                    expenses to assure Landlord that the Trustee or
                    Debtor-In-Possession will have sufficient funds to fulfill
                    the obligations of Tenant under this Lease, and to keep the
                    Premises stocked with inventory and properly staffed with
                    sufficient employees to conduct a fully-operational,
                    actively promoted business on the Premises; and

                             (ii) The Bankruptcy Court shall have entered an
                    Order segregating sufficient cash payable to Landlord and/or
                    the Trustee or Debtor-In-Possession shall have granted valid
                    and perfected first lien and security interest and/or
                    mortgage in property of Tenant, Trustee or Debtor-In-
                    Possession, acceptable as to value and kind to Landlord, to
                    secure to Landlord the obligation of the Trustee or Debtor-
                    In-Possession to cure the monetary and/or non-monetary
                    defaults under this Lease within the time period set forth
                    above.

                    (c) In the extent that this Lease is assumed by a Trustee
                    appointed for Tenant or by Tenant as Debtor-In-Possession
                    under the provisions of subsection (b) hereof and Thereafter
                    Tenant is liquidated of debts under Chapters 11 or 13 of the
                    Bankruptcy Code, then, and in either of such events,
                    Landlord may, at its option, terminate this Lease and all
                    rights of Tenant hereunder, by giving Tenant written notice
                    of its election to so terminate, by no later than THIRTY
                    (30) days after the occurrence of either of such events.

                    (d) If the Trustee or Debtor-In-Possession has assumed the
                    Lease pursuant to the terms and provisions of subsections
                    (a) or (b) herein, for the purpose of assigning (or elects
                    to assign) Tenant's interest under this Lease, or the estate
                    created thereby, to any other person, such interest or
                    estate may be so assigned only if Landlord shall acknowledge
                    in writing that the intended assignee has provided adequate
                    assurance as defined in this subsection (d) of future
                    performance of all of the terms, covenants

                                       14
<PAGE>

                    and conditions of this Lease to be performed by Tenant.

                    For purposes of this subsection (d), Landlord and Tenant
                    acknowledge that, in the context of a bankruptcy proceeding
                    of Tenant, at a minimum "adequate assurance of future
                    performance" shall mean that each of the following
                    conditions have been satisfied, and Landlord has so
                    acknowledged in writing:

                         (1) The assignee has submitted a current financial
                    statement audited by a Certified Public Accountant which
                    shows a net worth and working capital in amounts determined
                    to be sufficient by Landlord to assure the future
                    performance by such assignee of Tenant's obligations under
                    this Lease;

                         (2) The assignee, if requested by Landlord, shall have
                    obtained guarantees in form and substance satisfactory to
                    Landlord from one or more persons who satisfy Landlord's
                    standards of creditworthiness;

                         (3) Landlord has obtained all consents or waivers from
                    any third party required under any lease, mortgage,
                    financing arrangement or other agreement by which Landlord
                    is bound in order to permit Landlord to consent to such
                    assignment.

                    (e) When, pursuant to the Bankruptcy Code, the Trustee or
                    Debtor-In-Possession shall be obligated to pay reasonable
                    use and occupancy charges for the use of the Premises or any
                    portion thereof, such charges shall not be less than the
                    Base Rent as defined in this Lease and other monetary
                    obligations of Tenant for the payment of operating expenses,
                    real estate taxes, and similar charges.

                    (f) Neither Tenant's interest in the Lease, nor any lesser
                    interest of Tenant herein, nor any estate of Tenant hereby
                    created, shall pass to any trustee, receiver, assignee for
                    the benefit of creditors, or any other person or entity, or
                    otherwise by operation of law Under the laws of any state
                    having jurisdiction of the person or property of Tenant
                    (hereinafter referred to as the "state law") unless Landlord
                    shall consent to such transfer in writing. No acceptance by
                    Landlord of rent or any other payments from any such
                    trustee, receiver, assignee, person or other entity shall be
                    deemed to have waived, nor shall it waive the need to obtain
                    Landlord's consent of Landlord's right to terminate this
                    Lease for any transfer of Tenant's interest under this Lease
                    without such consent.

                    (g) In the event the estate of Tenant created hereby shall
                    be taken in execution or by other process of law, or if
                    Tenant or any guarantor of Tenant's obligations hereunder
                    (hereinafter referred to as the "guarantor") shall be
                    adjudicated insolvent pursuant to the provisions of

                                       15
<PAGE>

                    any present or future insolvency law under state law, or if
                    any proceedings are filed by or against the guarantor under
                    the Bankruptcy Code, or any similar provisions of any future
                    federal bankruptcy law, or if a Receiver or Trustee of the
                    property of Tenant or the guarantor shall be appointed under
                    state law by reason of Tenant's or the guarantor's
                    insolvency or inability to pay its debts as they become due
                    or otherwise, or if any assignment shall be made of Tenant's
                    or the guarantor's property for the benefit of creditors
                    under state law, then and in such event Landlord may, at its
                    option, terminate this Lease and all rights of Tenant
                    hereunder by giving Tenant written notice of the election to
                    so terminate within THIRTY (30) days after the occurrence of
                    such event.

                    As used in this Section 18, the term "Tenant" shall include
                    any surety or other guarantor of this Lease.

CASUALTY            19. In the event of damage by fire or other casualty to the
                    Premises or any part thereof, this Lease shall not be
                    terminated unless otherwise provided hereinafter, but
                    Landlord shall diligently proceed to repair and restore the
                    same. During the period that Tenant is deprived of the use
                    of the damaged portion of the Premises, provided that such
                    damage was not caused by the negligence or willful
                    misconduct of Tenant, its agents, employees, contractors,
                    visitors, guests or invitees, the rent for the remainder of
                    the Premises shall be that portion of the total rent which
                    the area remaining that can be occupied bears to the total
                    area of the Premises, so long as Tenant shall be able to
                    operate its business normally; if Tenant shall be unable to
                    operate its business normally, then rent shall be abated
                    during such period. If during the Term of this Lease the
                    Premises shall be so damaged by fire or other casualty as to
                    be untenantable, then unless said damage be repaired within
                    ONE HUNDRED TWENTY (120) days after said fire or other
                    casualty, either party, upon written notice to the other
                    party given at any time following the expiration of ONE
                    HUNDRED TWENTY (120) days thereafter, may terminate this
                    Lease, in which case the rent and additional rent shall be
                    apportioned and paid to the date of said fire or other
                    casualty. In the event that the Building is so severely
                    damaged or destroyed by fire or other casualty (although the
                    Premises may not be affected) that Landlord shall decide
                    within SIXTY (60) days following such event of casualty not
                    to rebuild or construct the Building, then Landlord shall
                    give written notice to Tenant and this Lease and the tenancy
                    hereunder shall terminate in accordance with such notice.

CONDEMNATION        20. (a) Tenant agrees that if the Premises or a substantial
                    part thereof shall be taken, or sold under the threat of
                    condemnation, for public or quasi-public use or purpose by
                    or to any competent authority, this Lease shall fully
                    terminate as of the date of any such taking. Tenant shall
                    have no claim against Landlord and shall have no claim or
                    right to any portion of the award which may be made to
                    Landlord as a result of any such

                                       16
<PAGE>

                    condemnation; all rights of Tenant to damages therefor, if
                    any, are hereby assigned by Tenant to Landlord. Upon such
                    condemnation or taking, the Term of this Lease shall cease
                    and terminate from the date of such taking or condemnation,
                    and Tenant shall have no claim against Landlord for the
                    value of any unexpired term of this Lease, leasehold
                    improvements, or good will. Notwithstanding the foregoing,
                    Tenant shall be free to pursue a separate claim against the
                    condemning authority for the depreciated value of its
                    leasehold improvements, provided that any award to Tenant
                    shall not result in a diminution of any award to Landlord.

                    (b) If less than a substantial part of the Premises is taken
                    or condemned, the rent for the remainder of the Premises
                    shall be that portion of the total rent which the area
                    remaining that can be occupied bears to the total area of
                    the Premises, effective on the date when title vests in such
                    governmental authority. The Lease shall otherwise remain in
                    full force and effect. For purposes hereof, a substantial
                    part of the Premises shall be considered to have been taken
                    if Tenant shall be unable to operate its business in its
                    normal and customary manner.

DEFAULT             21. (a) It is agreed that Tenant shall be in default if
                    Tenant shall fail to pay the rent (including any additional
                    rent) at the time the same shall become due and payable as
                    provided hereunder in Section 3(a) of this Lease, and Tenant
                    shall not cure such default within TEN (10) days after the
                    date due and payable for payment of such rent; or if Tenant
                    shall breach, violate, fail, or neglect to keep and perform
                    any of the other terms, covenants, or conditions herein
                    contained, or contained in the Building Instruments, and
                    Tenant shall not cure such breach within THIRTY (30) days
                    after written demand by Landlord therefor, or, if such
                    breach cannot reasonably be cured within such period, Tenant
                    shall fail to diligently attempt to cure such breach, or if
                    the Premises shall become vacant or abandoned (provided that
                    Landlord shall not construe any vacation or abandonment of
                    the Premises before the expiration of the Term hereof as a
                    default so long as Tenant continues to comply with all
                    covenants and conditions of the Lease).

                    (b) In the event of default by Tenant, then and in each such
                    case, Landlord may treat the occurrence of such event as a
                    breach of this Lease, and in addition to any and all other
                    rights or remedies of Landlord in this Lease or at law or in
                    equity provided, it shall be, at the option of Landlord,
                    without further notice or demand of any kind to Tenant or
                    any other person:

                    (i) The right of Landlord, even though it may have relet the
                    Premises as hereinbelow provided, to declare the Lease Term
                    ended and to re-enter the Premises and take possession
                    thereof and remove all persons therefrom, and Tenant shall
                    have no further claim thereon or thereto;

                                       17
<PAGE>

                    (ii) The right of Landlord to bring suit for the collection
                    of rent and other charges, as it accrues pursuant to the
                    terms of this Lease, and damages (including without
                    limitation reasonable attorneys' fees and the cost of
                    renovating the Premises) without entering into possession of
                    said Premises or canceling this Lease;

                    (iii) The right of Landlord to re-enter or retake possession
                    of the Premises from Tenant by summary proceedings or
                    otherwise and to remove, or cause to be removed, Tenant or
                    any other occupants from the premises in such manner as
                    Landlord shall deem advisable with or without legal process
                    and using self-help if necessary, and it is agreed that the
                    commencement and prosecution of any action by Landlord in an
                    unlawful detainer, ejectment or otherwise or any execution
                    of any judgment or decree obtained in any action to recover
                    possession of the Premises or any other re-entry and removal
                    shall not be construed as an election to terminate this
                    Lease whether or not such entry or re-entry be had or taken
                    under summary proceedings or otherwise, and shall not be
                    deemed to have absolved or discharged Tenant from any of its
                    obligations or liabilities for the remainder of the Term.
                    Tenant shall, notwithstanding any such entry or re-entry,
                    continue to be liable for the payment of rent and the
                    performance of the other covenants, conditions and
                    agreements by Tenant to be performed as set forth in this
                    Lease, and Tenant shall pay to Landlord all monthly
                    deficits, after any such reentry, in monthly installments as
                    the amounts of such deficits from time to time are
                    ascertained. In the event of any such ouster, Landlord shall
                    have the right but not the duty to rent or lease the
                    Premises to some other person, firm or corporation (whether
                    for a term greater or less than or equal to the unexpired
                    portion of the Term or whether the space leased by the new
                    lease includes more or less floor area than the Premises)
                    upon such terms and conditions and for such rental as the
                    Landlord may deem proper and to collect said rental and any
                    other rental that may thereafter become payable. In such
                    event, the rentals received by Landlord from such reletting
                    shall be applied: first, to the payment of any indebtedness
                    other than the rent due hereunder from Tenant to Landlord;
                    second, to the payment of any cost of such reletting
                    (including without limitations the making of any
                    alterations, repairs or decorations in the Premises which
                    Landlord deems advisable); third, to the payment of the cost
                    of any alterations and repairs to the Premises; third, to
                    the payment of rent due and unpaid hereunder, and the
                    residue, if any, shall be held by Landlord and applied in
                    payment of future rent as the same may become due and
                    payable hereunder. Should that portion of such rentals
                    received from such reletting during any month, which is
                    applied to the payment of rent hereunder, be less than the
                    rent payable during that month by Tenant hereunder, then
                    Tenant shall pay such deficiency to Landlord. Such
                    deficiency shall be calculated and paid monthly; Tenant
                    shall have no right to any excess. Tenant shall also pay to
                    Landlord, as soon as ascertained, any costs and expenses,
                    including, but not limited to,

                                       18
<PAGE>

                    brokerage commissions and attorneys' fees, incurred by
                    Landlord in such reletting or in making such alterations and
                    repairs not covered by the rental received from such
                    reletting. Nothing herein contained shall be construed as
                    obligating the Landlord to relet the whole or any part of
                    the Premises whatsoever. In the event of any entry or taking
                    possession of the Premises as aforesaid, Landlord shall have
                    the right, but not the obligation, to remove therefrom all
                    or any part of the personal property located therein and may
                    place the same in storage at a public warehouse at the
                    expense and risk of the owner or owners thereof. The terms
                    "re-enter or "re-entry" as used in this Lease are not and
                    shall not be restricted to their technical meaning but are
                    used in their broadest sense.

                    (c)  If Landlord elects to terminate this Lease under the
                    provisions set forth above, Landlord may recover from Tenant
                    as damages (all of which shall be immediately due and
                    payable from Tenant to Landlord), in addition to its other
                    remedies:

                         (i)   Any unpaid rent, including interest thereon,
                    which is due and owing at the time of such termination; plus

                         (ii)  That rent, including interest thereon, which
                    would have been earned after termination until the time of
                    judgment; plus

                         (iii) A sum representing liquidated damages and not
                    penalty in an amount equal to the excess of the Base Rent
                    for the Premises at the time of termination and the
                    additional rent provided for in Section 4 above for the year
                    in which this Lease shall be terminated multiplied by the
                    number of years and fraction of a year then constituting the
                    remainder of the Term hereof, over the rental value of the
                    Premises at the time of termination for such unexpired Term,
                    discounted at a rate of SEVEN percent (7%) per annum to
                    present value, less commissions, advertising, cost of
                    repairs and other expenses incidental to reletting of such
                    Premises.

                    Nothing herein contained shall limit or prejudice the right
                    of the Landlord to prove and obtain as liquidated damages in
                    any bankruptcy, insolvency, receivership, reorganization or
                    arrangement proceeding an amount equal to the maximum
                    allowed by any statute or rule of law governing such
                    proceedings and in effect at the time when such damages are
                    to be proved, whether or not such amount be greater, equal
                    to or less than the amount of the excess referred to in the
                    preceding sentence. In determining the rental value of the
                    Premises, the commercially reasonable rental realized by any
                    reletting accomplished or accepted by Landlord within a
                    reasonable time after termination of this Lease, shall be
                    deemed, prima facie, to be the rental value.

                                       19
<PAGE>

                    (iv) Any other amount necessary to compensate Landlord for
                    all the detriment directly caused by Tenant's failure to
                    perform its obligations under this Lease or which in the
                    ordinary course of things would be likely to result
                    therefrom including without limitation to cost of renovating
                    the Premises and reasonable attorneys' fees; plus

                    (v) At Landlord's election, such other amounts, in addition
                    to or in lieu of the foregoing, as may be permitted from
                    time to time by applicable law.

                    (d) In the event of default, all of the Tenant's fixtures,
                    furniture, equipment, improvements, additions, alterations,
                    and other personal property shall remain on the Premises and
                    in that event and continuing during the length of said
                    default, Landlord shall have the right to take exclusive
                    possession of same and to use the same, rent or charge free,
                    until all defaults are cured or, at its option, at any time
                    during the Lease Term, to require Tenant to forthwith remove
                    same. In connection with the foregoing, Landlord shall have
                    a lien upon the property of Tenant in the Premises during
                    the Lease Term for the amount of any unpaid rent or other
                    sum due from Tenant hereunder. Except upon expiration of
                    this Lease where no default exists in the payment of rent or
                    other sums due from Tenant hereunder, Tenant shall not
                    remove any of Tenant's property from the Premises without
                    the prior written consent of Landlord, other than pursuant
                    to sale thereof in the regular course of its business, and
                    Landlord shall have the right and privilege at its sole
                    option and discretion, to take possession of all property of
                    Tenant in the Premises, to store the same in said Premises,
                    or to remove it therefrom and store it in such place as may
                    be selected by Landlord, at Tenant's risk and expense, in
                    accordance with such lien and of any rights of distraint it
                    may possess against Tenant's said property.

                    (e) In the event of a breach or threatened breach by Tenant
                    of any of the covenants or provisions hereof, Landlord shall
                    have the right of injunction and the right to invoke any
                    remedy allowed at law or in equity as if re-entry, summary
                    proceedings and other remedies were not therein provided
                    for; and in such event Landlord shall be entitled to recover
                    from Tenant, payable as additional rent hereunder, any and
                    all reasonable expenses as Landlord may incur in connection
                    with its efforts to secure such injunctive relief or other
                    remedy at law or in equity, such as court costs and
                    attorneys' fees. Landlord and Tenant hereby expressly waive
                    trial by jury in any action, proceeding or counterclaim,
                    brought by either of them against the other, on any matter
                    whatsoever arising out of or in any way connected with this
                    Lease, their relationship as Landlord and Tenant, Tenant's
                    use and occupancy of the Premises and/or any claim of injury
                    or damage. If Landlord shall commence any proceeding for
                    non-payment of rent, or any other payment of any kind to
                    which Landlord may be entitled or which it may claim
                    hereunder, Tenant will not

                                       20
<PAGE>

                    interpose any counterclaim or set-off of whatever nature or
                    description in any such proceeding, the parties hereto
                    specifically agreeing that Tenant's covenants to pay rent or
                    any other payments required of it hereunder are independent
                    of all other covenants and agreements herein contained,
                    provided, however, that this shall not be constructed as a
                    waiver of Tenant's rights to assert such a claim in any
                    separate action brought by Tenant. Tenant further waives any
                    right of defense which may have to claim a merger, and
                    neither the commencement of any action or proceeding
                    settlement thereof nor entering of judgment shall bar
                    Landlord from bringing subsequent actions or proceedings
                    from time to time. Mention in this Lease of any particular
                    remedy shall not preclude Landlord from any other remedy at
                    law or in equity to which it may be entitled. Tenant hereby
                    expressly waives any and all rights of redemption granted by
                    or under any present or future laws in event of Tenant being
                    evicted or dispossessed for any cause, or in the event of
                    Landlord obtaining possession of the Premises by reason of
                    the violation by Tenant of any of the covenants and
                    conditions of this Lease, or otherwise.

                    (f) It is further provided that, if legal proceedings are
                    instituted hereunder, and a compromise or settlement thereof
                    shall be made, it shall not be constituted as a waiver of
                    any breach of any covenant, condition or agreement herein
                    contained.

                    (g) No payment by Tenant or receipt by Landlord of a lesser
                    amount than the Monthly Base Rent herein stipulated shall be
                    deemed to be other than on account of the earliest
                    stipulated rent then due, nor shall any endorsement or
                    statement on any check or any letter accompanying any check
                    or payment of rent be deemed an accord and satisfaction, and
                    Landlord may accept such check or payment without prejudice
                    to Landlord's right to recover the balance of such rent or
                    to pursue any other remedy.

                    (h) Should Tenant fail to pay rent (including any additional
                    rent) as and when the same is due, Landlord shall not be
                    required to wait until the expiration of the Term hereof to
                    sue for Landlord's loss or damages, but shall have the right
                    to sue from time to time to recover unpaid rent and other
                    damages as provided in this Lease. Landlord shall have the
                    option to declare the entire balance of the Base Rent
                    (including annual increases as provided herein) immediately
                    due and payable upon failure by Tenant to cure any default
                    within the time prescribed herein. Landlord shall have the
                    further option to defer action until the expiration of the
                    Term, in which event the cause of action shall not be deemed
                    to have accrued until the date of expiration. All rights and
                    remedies of Landlord under this Lease shall be cumulative
                    and shall not be exclusive of any other rights and remedies
                    provided to Landlord under applicable law.

                                       21
<PAGE>

                    (i) If, prior to the commencement of the Term of this Lease,
                    Tenant notifies Landlord of or otherwise unequivocally
                    demonstrates an intention to repudiate this Lease, Landlord
                    may, at its option, consider such anticipatory repudiation a
                    breach of this Lease. In addition to any other remedies
                    available to it hereunder or at law or in equity, Landlord
                    may retain all rent paid upon execution of the Lease and the
                    security deposit, if any, to be applied to damages of
                    Landlord incurred as a result of such repudiation,
                    including, without limitation, attorneys' fees, brokerage
                    fees, costs of reletting and loss of rent. It is agreed
                    between the parties that for the purpose of calculating
                    Landlord's damages, in a building which has other available
                    space at the time of Tenant's breach, Landlord shall have no
                    obligation to rent the Premises prior to other space in the
                    Building.

SUBORDINATION       22. This Lease is subject and subordinate to all ground or
                    underlying leases, if any, and to any deeds of trust which
                    may now or hereafter affect this Lease or the Property, and
                    to all renewals, modifications, consolidations, replacements
                    and extensions thereof. Notwithstanding the foregoing,
                    Tenant shall have the right to keep the Lease in full force
                    and effect so long as Tenant shall fully comply with all the
                    terms of this Lease. This clause shall be self-operative and
                    no further instrument of subordination shall be necessary to
                    effect the subordination of this Lease to the lien of any
                    such lease, mortgage or deed of trust. In confirmation of
                    such subordination, however, Tenant shall execute promptly
                    any such certificate or subordination agreement that
                    Landlord may request. Tenant hereby constitutes and appoints
                    Landlord as Tenant's attorney-in-fact to execute any such
                    certificate(s) for and on behalf of Tenant, said appointment
                    to be a power coupled with an interest and irrevocable
                    during the Term of this Lease. In the event of any
                    proceeding to terminate any ground or underlying lease, or
                    in the event of any proceeding for the foreclosure of any
                    mortgage or deed of trust to which this Lease is
                    subordinate, the ground lessor, purchaser, assignee or other
                    successor to Landlord's rights, shall have the option to
                    terminate or cancel this Lease; if this Lease is not so
                    terminated or canceled, Tenant shall attorn to the Lessor
                    thereunder or to the purchaser at the foreclosure sale.

                    Upon request and with reasonable notice from Tenant,
                    Landlord shall obtain a non-disturbance agreement on
                    Tenant's behalf from each existing Mortgagee (and any future
                    mortgagees upon request by Tenant) on such Mortgagees's
                    commercially reasonable standard form (and in recordable
                    form) agreeing that such Mortgagee or any purchaser in a
                    foreclosure sale shall recognize and be bound by the terms
                    of this Lease upon a foreclosure or deed in lieu thereof (as
                    long as no Event of Default exists hereunder).

HOLDOVER            23. If Tenant shall remain in the Premises, with the
                    knowledge and

                                       22
<PAGE>

PROVISIONS          written consent of Landlord, after the expiration of the
                    Term of this Lease, or any renewal or extension thereof,
                    Tenant shall become a tenant from month to month at ONE
                    HUNDRED TEN PERCENT (110%) of the monthly rental for the
                    last month of the Lease Term, commencing on the first day
                    next after the Lease Expiration Date. Tenant shall give to
                    Landlord at least THIRTY (30) days written notice of any
                    intention to quit the Premises, and Tenant shall be entitled
                    to THIRTY (30) days written notice to quit except in the
                    event of default hereunder. All other terms and conditions
                    of this Lease shall remain in full force and effect.
                    Provided, however, that in the event that Tenant shall hold
                    over without Landlord's knowledge and consent, then at any
                    time prior to Landlord's acceptance of rent from Tenant as a
                    monthly tenant hereunder, Landlord, at its option, may
                    re-enter and take possession of the Premises without
                    process, or by any legal proceeds in force in the
                    jurisdiction in which the Building is situated.

SUCCESSORS'         24. It is agreed that all rights, remedies and liabilities
OBLIGATION          hereunder given to or imposed upon either of the parties
                    hereto shall extend to their respective heirs, successors,
                    executors, administrators and assigns. This provision shall
                    not be deemed to grant Tenant any right to assign this Lease
                    or to sublet the Premises, except as set forth in Section 7
                    above. Tenant acknowledges Landlord might not be, now or in
                    the future, the owner of the fee interest in the Premises,
                    the Building and/or Land. The term "LANDLORD" as used in
                    this Lease is hereby defined to be only the then current
                    owner or mortgagee in possession of the Premises. In the
                    event of any sale or sales by the then current Landlord
                    hereunder to any party then, from and after the closing of
                    such sale or lease transaction, the Landlord whose interest
                    is thus sold or leased shall be and hereby is completely
                    released and forever discharged from and of all covenants,
                    obligations and liabilities of Landlord hereunder thereafter
                    accruing.

RULES AND           25. The Tenant covenants that the rules and regulations set
REGULATIONS         forth in Exhibit A, attached hereto and incorporated herein
                    by reference, and such other and further rules and
                    regulations as the Landlord may make and furnish to the
                    Tenant, and which in Landlord's judgment are necessary or
                    appropriate for the general well-being, safety, care and
                    cleanliness of the Premises and the Building together with
                    the appurtenances, shall be faithfully kept, observed and
                    performed by Tenant, and by Tenant's agents, servants,
                    employees and guests unless waived in writing by the
                    Landlord. All such rules and regulations shall be enforced
                    in a consistent manner by Landlord against all tenants in
                    the Buildings. Any failure by Landlord to enforce any rule
                    or regulation against any party shall not be deemed a waiver
                    of such rule or regulation or of Landlord's further right to
                    enforce the same.

REPRESEN            26. Landlord's Covenants. Landlord covenants that it has the
                        --------------------
                    right to

                                      23
<PAGE>

TATIONS,            make this Lease for the Term aforesaid, and that if Tenant
WARRANTIES          shall pay the rent and performs all of the covenants, terms,
AND                 conditions, and agreements of this Lease to be performed by
COVENANTS OF        Tenant, Tenant shall, during the Term, be able to freely,
LANDLORD            peaceably and quietly occupy and enjoy the full possession
                    of the Premises without molestation or hindrance by Landlord
                    or any party claiming through or under Landlord, subject to
                    other provisions contained in this Lease.

                    (a) Landlord shall maintain during the term of this Lease,
                    all risk coverage for the Building in the amount of the full
                    replacement value thereof together with comprehensive
                    general liability insurance.

                    (b) Landlord represents and warrants to Tenant as follows:
                    To the best of Landlord's knowledge after due inquiry, no
                    governmental regulated hazardous or toxic substances have
                    been used, processed, released, discharged, generated,
                    treated, stored or disposed of on the Premises, the Building
                    or the land upon which the Building is located (the "Land")
                    and no hazardous or toxic substances currently exist on or
                    about the Premises, the Building or the Land and, to the
                    best of Landlord's knowledge, any adjacent property. In the
                    event Landlord becomes aware of any governmental regulated
                    hazardous or toxic substances that have been used,
                    processed, released, discharged, generated, treated, stored
                    or disposed of on the Premises, the Building or the land
                    upon which the Building is located (the "Land"), Landlord
                    shall remove or otherwise contain any such substances within
                    thirty (30) days after Landlord becomes aware of such
                    hazardous or toxic substances.

RESERVATIONS        27. Tenant hereby acknowledges that the Landlord retains the
OF RIGHTS OF        following rights: (i) to change the street address and/or
ADDRESS             name of the Building and/or name of the Building and/or the
                    arrangement and/or location entrances, passageways, doors,
                    doorways, corridors, elevators, stairs, toilets, or other
                    public parts of the Building and to make improvements,
                    alterations, additions, installations, eliminations and
                    changes to the Building, Land, parking facilities, or any
                    part thereof, provided that such changes do not unreasonably
                    interfere with Tenant's use and occupancy of the Premises or
                    conduct of its business (except in the event of an
                    emergency); (ii) to erect, use, and maintain pipes and
                    conduits in and through the Premises; (iii) to grant to
                    anyone the exclusive right to conduct any particular
                    business or undertaking in the Building; (iv) to install and
                    maintain signs on the Building and/or Land; and (v) have
                    passkeys to the Premises. Landlord may exercise any or all
                    of the foregoing rights without being deemed to be guilty of
                    an eviction, actual, or constructive, or a disturbance or
                    interruption of the business of Tenant or Tenant's use or
                    occupancy of the Premises.

CONSTRUCTION        28. Landlord's Standard Work. It is understood and agreed
OF LEASEHOLD            ------------------------
                    that Tenant will take the Premises in "AS-IS" condition upon
                    commencement

                                      24
<PAGE>

IMPROVEMENTS        of this Lease Agreement. All Leasehold Improvements existing
                    in the Premises upon occupancy of Tenant or made by or for
                    Tenant after commencement of any lease term with Landlord
                    shall remain as the sole property of the Landlord, and in no
                    event shall Tenant remove any Leasehold Improvements from
                    the Premises.

                    Landlord agrees that it will perform a reasonable turnkey
                    build-out for Tenant, at Landlord's sole cost and expense,
                    up to a maximum allowance of EIGHT AND 00/100 DOLLARS
                    ($8.00) PER SQUARE FOOT, providing building standard work
                    using building standard specifications, materials and color
                    selections, in quantities necessary to build-out the
                    Premises substantially in accordance with Tenant's Plans,
                    which plans shall be mutually agreed upon by Landlord and
                    Tenant, and shall be attached hereto and made a part hereof
                    as Exhibit "B".

MECHANIC            29. Tenant shall not do, or suffer to be done, any act,
LIENS               matter or thing whereby the Premises (or Tenant's interest
                    therein), or any part thereof, may be encumbered by any
                    mechanics' or materialmen's lien and/or any other lien or
                    encumbrance. Tenant shall discharge, within ten (10)
                    business days after the date of filing, any mechanic's, or
                    materialmen's or other liens filed against the Premises, or
                    Tenant interest therein, or any part thereof, purporting to
                    be for work or material furnished, or to be furnished, to
                    Tenant.

                                      25
<PAGE>

PARKING             30. Landlord agrees to provide for the use of Tenant in
                    common with others, a surface parking area adjacent to the
                    Building in which the Demised Premises are located. The
                    Landlord reserves the right to promulgate rules and
                    regulations relating to the use of such surface parking
                    area, including such limitations as may, in the opinion of
                    the Landlord, be necessary and desirable. Tenant and
                    Tenant's employees shall park their vehicles only in those
                    portions of the parking areas designated for employee
                    parking by the Landlord. Further, Tenant and its employees
                    are expressly prohibited from parking in any portion of the
                    parking area designated or marked for visitor parking only.
                    Tenant, shall within FIVE (5) days after taking possession
                    of the Demised Premises, furnish Landlord or its agent with
                    the vehicle license numbers assigned to Tenant's vehicles
                    and the vehicles of Tenant's employees, and shall thereafter
                    notify the Landlord or its agent of any changes within FIVE
                    (5) days after such changes occur. In the event that the
                    Tenant or any of its employees shall park their vehicles in
                    any portion of the parking area other than that portion
                    designated for that purpose, then the Landlord shall have
                    the right, at Landlord's option, to assess Tenant a fine or
                    penalty for any such improperly parked vehicle, and/or to
                    have any such improperly parked vehicle towed at Tenant's
                    expense. As an inducement to enter into this Lease
                    Agreement, Landlord agrees to assign SIX (6) parking spaces
                    in the parking lot of the Building specifically designated
                    for Tenant.

GENDER              31. Feminine or neuter pronouns shall be substituted for the
                    masculine form, and the plural shall be substituted for the
                    singular number, in any place or places herein in which the
                    context may require such substitution or substitutions.
                    Landlord and Tenant, as a matter of convenience, have been
                    referred to in neuter form.

NOTICES             32. All notices required or desired to be given hereunder by
                    either party to the other shall be hand delivered or given
                    by certified or registered mail, first-class postage
                    prepaid, return receipt requested. Notices to the respective
                    parties shall be addressed as follows:

                      To LANDLORD:
                       ANNANDALE FINANCIAL CENTER JOINT VENTURE
                       c/o Southern Management Corporation
                       1950 Old Gallows Road, Suite 600
                       Vienna, VA 22182

                      To TENANT:
                       ONESOFT CORPORATION
                       ATTN: James McIntyre, IV, President
                       7010 Little River Turnpike, Suite 430
                       Annandale VA 22003

                                      26
<PAGE>

                    Either party may, by like written notice, designate a new
                    address to which such notices shall be directed.

ESTOPPEL            33. Tenant agrees, at any time and from time to time, upon
CERTIFICATES        not less than FIVE (5) days prior written notice by
                    Landlord, to execute, acknowledge and deliver to Landlord a
                    statement in writing (i) certifying that this Lease is
                    unmodified and in full force and effect (or if there have
                    been modifications, that the Lease is in full force and
                    effect as modified and stating the modification); (ii)
                    stating the dates to which the rent and any other charges
                    hereunder have been paid by Tenant; (iii) stating whether or
                    not to the best knowledge of Tenant, Landlord is in default
                    in the performance of any covenant; (iv) stating the address
                    to which notices to Tenant should be sent; and (v) any other
                    information as may be reasonably required. Any such
                    statement delivered pursuant hereto may be relied upon by
                    any owner of the Building or the Land; any prospective
                    purchaser of the Building or the Land, any mortgagee or
                    prospective mortgagee of the Building or the Land or of
                    Landlord's interest in either, or any prospective assignee
                    of any such mortgagee.

SECURITY            34. To secure the full faith performance by Tenant of all of
DEPOSIT             the obligations, covenants, conditions and agreements to be
                    fulfilled, kept, observed, and performed by Tenant, Tenant
                    shall tender Landlord the sum of SEVEN THOUSAND SIX HUNDRED
                    FIFTY-EIGHT AND 33/100 DOLLARS ($7,658.33) which sum shall
                    be held as a security deposit ("SECURITY DEPOSIT") and
                    applied towards its damages and/or remedies in the event of
                    Tenant's default. Landlord's rights against Tenant in the
                    event of Default shall in no way be limited or restricted by
                    this security deposit. Upon the expiration of this Term (or
                    any renewal or extension thereof in accordance with this
                    Lease), Landlord shall, provided that tenant is not in
                    default under the terms hereof, return and pay back such
                    security deposit to tenant, less such portion thereof as
                    Landlord shall have appropriated to cure any default by
                    tenant with respect to any of Tenant's aforesaid
                    obligations, covenants, conditions and agreements and no
                    damages or expenses incurred by Landlord. In the event of
                    any default by Tenant hereunder, Landlord shall have the
                    right, but not the obligation, to apply all or any portion
                    of the Security Deposit to cure such default, in which
                    event, Tenant shall be obligated to promptly deposit with
                    the Landlord the amount necessary to restore the Security
                    Deposit to its original amount. In the event of the sale or
                    transfer of Landlord's interest in the Building, Landlord
                    shall have the right to transfer the Security Deposit to
                    such purchaser or transferee in which event Tenant shall
                    look only to the new Landlord for the return of the Security
                    Deposit and Landlord shall thereupon be released from all
                    liability to Tenant for the return of such Security Deposit.

GOVERNING           35. The parties agree that the laws of the Commonwealth of
                    Virginia

                                      27
<PAGE>

LAW                 shall govern the validity, performance and enforcement of
                    this Lease.

BROKERS             36. Landlord and Tenant each represent and warrant that
                    neither of them has employed any broker to negotiate the
                    terms of this Lease.

WAIVER OF           37. No delay in exercising or failure to exercise any right
BREACH              or power hereunder by Landlord shall impair any such right
                    or shall be construed as a waiver of any breach or default,
                    or as acquiescence thereto. One or more waivers of any
                    covenants, terms or conditions of this Lease by Landlord
                    shall not be construed by the other party as a waiver of a
                    continuing or subsequent breach of the same covenant, term
                    or condition. The consent or approval by Landlord to or of
                    any act by Tenant of a nature requiring consent or render
                    unnecessary consent to or approval of any subsequent similar
                    act. No provision of this Lease shall be deemed to have been
                    waived by Landlord, unless such waiver be in writing signed
                    by Landlord.

SEVERABILITY        38. If any term or provision of this Lease or the
                    application thereof to any person or circumstance shall to
                    any extent be invalid or unenforceable, the remainder of
                    this Lease, or the application of such term or provision to
                    persons or circumstances other than to those as to which it
                    is held invalid or unenforceable, shall not be affected
                    thereby, and each term and provision of the Lease shall be
                    valid and be enforced to the fullest extent permitted by
                    law.

CAPTIONS FOR        39. The titles of the sections and paragraphs throughout
CONVENIENCE         this Lease are for convenience and reference only, and the
                    words contained therein shall be in no way held to explain,
                    modify, amplify or aid in the interpretation, construction
                    or meaning of the provisions of this Lease.

DUPLICATE           40. This Lease may be executed in one or more counterparts,
COUNTERPARTS AS     each of which shall be an original, and all of which shall
ORIGINALS           constitute one and the same instrument

ENTIRE              41. This Lease constitutes the entire agreement between the
AGREEMENT           parties and no earlier statements or prior written matter
                    shall have any force or effect. Tenant is not relying on any
                    representations or agreements other than those contained-in
                    this Lease. This Lease shall not be modified or canceled
                    except by written instrument executed by both parties.

                        (SIGNATURES ON FOLLOWING PAGE.)

                                      28
<PAGE>

          WITNESSETH the following signatures and seals:

WITNESS                            LANDLORD:
                                   ANNANDALE FINANCIAL CENTER
                                   JOINT VENTURE
                                   a Maryland general partnership

/S/ Leslie A. King                  By:  /S/ Susan M. Scott
------------------                       ------------------------------

                                    Its: Agent
                                         -----------------------------

                                    Date July 20, 1998
                                         -----------------------------

ATTEST                              TENANT:

                                    ONESOFT CORPORATION
                                    A Delaware corporation

/S/ Paul Economon                   By   /S/ Frederick C. Hawkins, III
-----------------------------            -----------------------------
Corporate Secretary [SEAL]
                                    Its  Chief Financial Officer
                                         -----------------------------

                                    Date July 16, 1998
                                         ----------------------------

                                      29
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                                   EXHIBIT A

                     RULES AND REGULATIONS OF THE BUILDING

     The Tenant covenants that the following "RULES and REGULATIONS", and such
other and further Rules and Regulations as the Landlord may make and which in
the Landlord's judgement are needful for the general well being, safety, care
and cleanliness of the Premises and the building of which they are a part
together with their appurtenances, shall be faithfully kept, observed and
performed by the Tenant, and by his agents, servants, employees and guests
unless waived in writing by the Landlord.

     a. The sidewalks, entrances, passages, courts, elevators, vestibules,
stairways, corridors or halls or other parts of the Building not occupied by any
tenant shall not be obstructed or encumbered by any tenant or used for any
purpose other than ingress or egress to and from the Premises. Landlord shall
have the right to control and operate the public portions of the Building, and
the facilities furnished for the common use of the tenants, in such manner as
Landlord reasonably deems best for the benefit of the tenants generally. No
tenant shall permit the visit to the Premises of persons in such numbers or
under such conditions as to materially interfere with the use and enjoyment by
other tenants of the entrances, corridors, elevators and other public portions
or facilities of the Building.

     b. No awning or other projections shall be attached to the outside walls of
the building, without the prior written consent of Landlord. Notwithstanding the
existing window coverings, no drapes, 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. Such awnings,
projections, curtains, blinds, screens or other fixtures must be of a quality,
type, design, and color, and attached in a manner approved by Landlord.

     c. The doors leading to the corridors or main halls shall be kept closed
during business hours except as they may be used to ingress or egress. No
additional locks shall be placed upon any doors of the Premises, nor shall any
changes be made in existing locks or the mechanisms thereof; except that Tenant
shall have the right at its expense to install security locks on all entry doors
and fire doors opening into the Premises, and also on the doors to any offices
within the Premises, provided Tenant at the termination of its occupancy shall
provide Landlord all keys either furnished to, or otherwise procured by Tenant,
and in the event of the loss of any keys so furnished, Tenant shall pay to
Landlord the cost to replace. Tenant further agrees that, should Landlord so
require, Tenant will at its expense remove any additional locks which it
installed or caused to be installed, reinstall the original hardware, and repair
to Landlord's reasonable satisfaction a damage to doors or frames. Tenant agrees
to give access upon reasonable request to any such locked area(s).

     d. Tenant -shall not construct, maintain, use or operate within the
Premises or elsewhere in the Building of which the Premises form a part or on
the outside of the Building, any equipment or machinery which produces music,
sound or noise which is audible beyond the Premises.
<PAGE>

     e. There shall be no marking, painting, drilling into or in any way
defacing any part of the Premises or the Building with the exception of affixing
wall decorations, shelving and like items within the Premises. No Tenant shall
throw anything out of the doors or windows or down the corridors or stairs.

     f. The employees of the Landlord are prohibited as such from receiving any
packages or other articles delivered to the Building for the Tenant, and should
any such employee receive any such packages or articles, he or she in so doing
shall be the agent of the Tenant and not of the Landlord.

     g. The water and wash closets and other plumbing fixtures shall not be used
for any purposes other than those for which they were constructed, and no
sweepings, rubbish, rags, or other substances shall be thrown therein. All
reasonable costs for damages resulting from any misuse of the fixtures shall be
borne by the Tenant who1 in whose servants, employees, agents, visitors, or
licensees, shall have caused same.

     h. No vehicles or animals, except for animals whose function is to assist
disabled persons, of any kind shall be brought into or kept in or about the
Premises or the Building, and no cooking shall be done or permitted by the
Tenant on the demised premises except in kitchens constructed as part of Tenant
Improvements. No Tenant shall cause or permit any objectionable odors to be
produced upon or emanate from the Premises.

     i. Neither Tenant, nor any of Tenant's servants, employees, agents,
visitors or licensees, shall at any time bring or keep upon the Premises any
inflammable, combustible or explosive fluid, chemical or substance except normal
and customary office supplies.

     j. Canvassing, soliciting and peddling in the Building is prohibited and
Tenant shall cooperate to prevent the same.

     k. Any person employed by Tenant to do janitorial work within the Premises
must first obtain Landlord's consent and such person shall, while in the
Building and outside of said demised premises, comply with all instructions
issued by the superintendent of the Building.

     l. There shall not be used in any space, or in the public halls of the
Building, either by any tenant or by jobbers or others, in the delivery or
receipt of merchandise, any hand trucks, except those equipped with rubber
tires.

     m. Access plates to under floor conduits must be left exposed. Where carpet
is installed, carpet must be cut around access plates. Electric and telephone
floor distribution boxes must remain accessible at all times.

     n. Tenant shall use reasonable efforts to adjust thermostat, if adjustable
to the setting which uses the least amount of energy upon leaving the Premises
daily.

     o. Mats, trash, or other objects are not permitted in the public corridors.

     p. Landlord and/or its parking contractor shall have the right to establish
reasonable rules and regulations for the use of all parking facilities at the
Building.
<PAGE>

     q. Landlord shall have the right to determine when Tenant may move its
property; i.e., furnishings, files, etc., into or out of the Premises. Tenant
shall request permission from Landlord for any such move, and shall abide by
Landlord's reasonable rules regarding any such move.

     r. Tenant shall purchase and maintain comprehensive public liability and
property damage insurance on the Premises, protecting Landlord and Tenant
against loss, cost, or expense by reason of injury or death to persons or damage
to or destruction of property by reason of the use and occupancy of the Premises
by Tenant and its invitees, such insurance to be carried by reputable companies
and having limits of not less than $1,000,000.00 for injury to or death of any
one person, $1,000,000.00 for each accident and $1,000,000.00 for property
damage.

     s. No tenant shall purchase spring water, ice, coffee, soft drinks, towels
or other like service, from any company or persons whose repeated violations of
the Building regulations have caused, in Landlord's opinion, a hazard or
nuisance to the Building and/or its occupants.

     t. Landlord reserves the right to exclude from the Building at all times
any person who is not known or does not properly identify himself/herself to the
Building management or night watchman on duty. Landlord may at its option,
require all persons admitted to or leaving the Building between the hours of
6:00 P.M. and 8:00 A.M, Monday through Friday, and at all times on Saturdays,
Sundays and legal holidays, to register. Tenant shall be responsible for all
persons for whom he authorizes entry into or exit out of the Building, and shall
be liable to Landlord for all acts of such persons.

     u. The Premises shall not be used for lodging or sleeping or for any
illegal purpose. The Premises shall never, at any time, be used for any immoral,
disorderly, unlawful or hazardous purposes nor for any other purposes than
hereinbefore specified; and will not manufacture any commodity therein.

     v. Landlord shall not maintain suite finishes which are nonstandard, such
as kitchen appliances, wallpaper, special light, etc. However, should the need
for repairs arise, at Tenant's request, Landlord will arrange for the work to be
done at the Tenant's expense. Tenant shall have the right to select a contractor
for said repairs subject however to Landlord's reasonable approval.

     w. No auction sales shall be conducted in the Building without Landlord's
consent.

     x. No tenant shall use any other method of heating than that provided by
the Landlord without the Landlord's consent.

     y. When reasonably necessary to control the climate, and upon request of
Landlord, Tenant shall keep window coverings closed at the appropriate time of
day to prevent direct solar penetration of the Premises.

     Landlord agrees to advise Tenant in writing of any additions to, deletions
from, or changes in the foregoing Rules and Regulations. In the event that
Tenant is in violation of any Building rule or regulation, Landlord shall notify
Tenant in writing of the same, and shall allow Tenant a reasonable period of
time within which to comply with such rule and regulation.
<PAGE>

Failure of Tenant to comply within such period of time shall constitute a
material default under the terms and conditions of this Lease.

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