Document:

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                                                                    EXHIBIT 10.6

December 26, 2003

Government Properties Trust, Inc.
Mr. Thomas D. Peschio, President/CEO
10250 Regency Circle, Suite #100
Omaha, NE 68114-3754

RE:   Revolving Acquisition Line of Credit

Dear Mr. Peschio:

Based upon the financial information furnished, First National Bank of Omaha
("Lender") hereby commits to make the following described loan under the terms
and conditions hereinafter set forth:

BORROWER:           Government Properties Trust, Inc., or its assigns in which
                    it has controlling interest

GUARANTOR:          Government Properties Trust, Inc.

LENDER:             First National Bank of Omaha

FACILITY TYPE:      Revolving Line of Credit, to be used for real estate
                    acquisition purposes.

LOAN AMOUNT:        $50,000,000.00

LOAN ADVANCES:      A.) ACQUISITION ADVANCES shall not exceed 70% of
                    the lesser of the purchase price or appraised value of the
                    acquired property.

                    B.) DEPOSIT ADVANCES (for purchase deposits or permanent
                    mortgage good faith deposits) shall be secured by deposits
                    held by First National Capital Markets, Inc. Up to a maximum
                    of $25,000,000 may be utilized for Letters of Credit.

COLLATERAL:         A.) ACQUISITION ADVANCES: First Mortgages or Deeds of Trust,
                    Security Agreements, and Assignment of Rents and Leases on
                    acquired real estate.
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                       Government Properties Trust, Inc.

                    B.) DEPOSIT ADVANCES: Control Agreement between Borrower,
                    Guarantor, Lender and First National Capital Markets, Inc.

INTEREST RATE:      Prime Rate, Floating (as published by the Wall Street
                    Journal) with a floor of 4.00%.

TERM:               364 days

REPAYMENT:          Monthly payment of interest only based on the amount
                    advanced. Acquisition advances will be repaid upon closing
                    of the permanent financing. Deposit advances will be repaid
                    at the time of acquisition closing or permanent loan
                    closing. Acquisition advances will be limited to a maximum
                    of 6 months. In the event the line is not renewed prior to
                    the 6 months and the line is not replaced by another bank
                    group, then a new loan for that specific property will be
                    negotiated for a term of not more than 12 months.

PREPAYMENT:         The Line of Credit shall be open to prepayment at any time
                    without penalty or fee.

ORIGINATION FEE:    $ 250,000 (0.50% of the Commitment Amount) which is
                    payable on or before closing.

ADVANCE FEE:        0.50% of each advance. Additional fees will be
                    applicable to Letters of Credit.

FINANCIAL
 COVENANTS:         All advances that would increase the balance
                    outstanding under this facility will be subject to the
                    following:

                    1.   Minimum Tangible Net Worth not less than $ 90 million

                    2.   Total Liabilities to Tangible Net Worth shall be 4.0 or
                         less

                    3.   Minimum Debt Service Coverage Ratio of 1.2 times.

NEGATIVE COVENANTS: Limitations on other investments, i.e. Properties
                    under development, undeveloped land, unconsolidated
                    affiliates, etc.

AFFIRMATIVE
 COVENANTS:         Maintenance of corporate existence and REIT
                    status, maintenance of insurance; payment of taxes and other
                    liabilities; delivery of financial statements; distributions
                    not to exceed 100% of FFO for most recent 4 quarters, unless

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                       Government Properties Trust, Inc.

                    required to maintain REIT status. Other covenants as
                    appropriate.

ELIGIBLE
 PROPERTIES:        All properties submitted for inclusion must be
                    federal government leased properties and improvements
                    acceptable to Lender and must have an executed lease
                    agreement acceptable to Lender, including a minimum of 10
                    years remaining on the lease term.

USE OF FUNDS: Loan funds will be used to provide acquisition financing
(short-term) for the purchase of the federal government leased properties
(predominantly office buildings) that have a minimum of 10 years left on the
lease before a lease expiration or a lease termination date. Loan funds may also
be used to provide deposits for purchase contracts or good faith deposits with
potential permanent mortgage lenders.

LOAN DOCUMENTS: A.) ACQUISITION ADVANCES shall be secured by:

      a)    $50,000,000.00 Revolving Loan Agreement

      b)    Promissory Notes on the individual properties;

      c)    First Mortgages or Deeds of Trust on individual properties

      d)    Assignment of Rents and Leases;

      e)    Security Agreement covering all other tangible and intangible assets
            owned in connection with the individual properties;

      f)    Uniform Commercial Code Financing Statements;

      g)    Environmental Indemnity Agreement;

      h)    Master Guaranty Agreement executed by Guarantor;

      i)    Assignment of major construction contract(s) (if applicable);

      j)    Assignment of Architectural contract(s) (if applicable);

      k)    Notice of Commencement (if applicable); and

      l)    Such additional documents, as Lender shall require.

                B.) DEPOSIT ADVANCES shall be secured by:

      a)    Control Agreement between Borrower, Guarantor, Lender and First
            National Capital Markets, Inc.;

      b)    $50,000,000.00 Revolving Loan Agreement; and

      c)    Such additional documents, as Lender shall require.

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                       Government Properties Trust, Inc.

      The form and content of all above mentioned loan documents shall be
reasonably satisfactory to Lender's counsel.

REQUIREMENTS PRIOR TO LOAN CLOSING: At least seven (7) days prior to the closing
date, Borrower shall have furnished to Lender each of the following in form and
content acceptable to Lender:

a)    TITLE: Evidence that title to the Collateral shall be good and marketable,
      free and clear of all defects, liens, encumbrances, security interests,
      restrictions and easements which Lender has not otherwise approved. Such
      evidence shall specifically include:

i.      Copies of all documents affecting title to the Collateral;

ii.     Evidence that ingress and egress from the project is by public streets;
        and

iii.    Evidence that all utilities serving the project are located in the
        public right-of-way abutting the project and if connected to the project
        by passing over property which is not public right-of-way, are connected
        to the project by means of easements which have been granted, are
        acceptable to Lender, and which will be insured through proper title
        insurance.

b)    TITLE INSURANCE: A commitment to issue, on the closing date, an ALTA
      mortgagee's policy of title insurance to Lender, American Land Title
      Association Loan Policy 10-17-92 or such other form as Lender shall
      approve, for the full amount of the loan. The title insurance policy, when
      issued, shall contain a comprehensive zoning endorsement and any and all
      other endorsements which lender require. Title shall be subject to those
      exceptions, as Lender shall approve.

c)    SURVEY: An ALTA As-Built Survey of the real estate comprising the property
      being acquired, identifying all easements and utility locations prepared
      by a land surveyor duly registered and in good standing in the State
      (where the property is located) to be in accordance with the survey
      standards as listed in the Exhibit "A" attached, shall be provided.

d)    APPRAISAL: The Lender will require an MAI Appraisal Report on each
      individual property funded under the Line of Credit. The appraisal is to
      be ordered by the Lender at Borrower's cost. The appraisal report must be
      in compliance with all of the minimum standards as required by FIRREA in
      their uniform appraisal standards adopted June 7, 1994, dealing with
      federally regulated institutions. Loan not to exceed 70% of appraised
      value.

e)    "PHASE I" SITE ASSESSMENT REPORT: The Lender will require a satisfactory
      Phase I Environmental Assessment Report covering each individual property
      funded under the Line of Credit. The report, ordered by the Lender at
      Borrower's cost, will include, as a minimum, a 40 year title search of all
      past users and owners of the property being mortgaged.

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                       Government Properties Trust, Inc.

f)    INSURANCE: Fire and extended coverage insurance for the full insurable
      value of the building, including comprehensive general liability
      insurance. All insurance policies required hereunder shall be issued by
      companies, on forms, in amounts and with deductibles acceptable to Lender,
      and shall show Lender as "additional insured" and "loss payee" with a
      standard non-contributory mortgagee clause in favor of Lender. Such policy
      shall provide that there shall be no cancellation or modification without
      less than thirty (30) days prior written notice to Lender. All such
      policies shall be renewed during the term of the loan and copies of same
      shall be provided to Lender at least thirty (30) days prior to the
      termination date of any then current policy. Rent loss coverage of at
      least twelve (12) months shall be required.

g)    TAXES AND ASSESSMENTS: Evidence that all installments of general real
      estate taxes, special taxes or assessments and the like are paid on all
      properties acquired under the subject Line of Credit.

h)    LEGAL COMPLIANCE: Evidence from local governmental authorities having
      jurisdiction that the acquisition property complies with all zoning
      requirements, fire marshal requirements, city code requirements, and any
      other local ordinance relative to the property's development.

i)    FINANCIAL STATEMENTS: Audited financial statements of the Borrower and
      Guarantor shall be provided to Lender upon request. Lender may reasonably
      require rent rolls and operating and financial statements on the acquired
      property.

j)    U.C.C./TAX LIEN/JUDGMENT SEARCHES: U.C.C., tax lien and judgment searches
      against Borrower, Guarantor, and such other parties as Lender may require,
      showing that the personal property owned by the Borrower and/or Guarantor,
      as applicable, is free from all security interests, liens, encumbrances,
      and judgments, except the prior security interest to Lender.

k)    LEGAL CAPACITY: Lender will be given evidence that the persons executing
      the loan documents on behalf of the Borrower and Guarantor have legal
      capacity and authority to enter into this mortgage transaction and to
      execute the loan documents.

SPECIAL MORTGAGE PROVISIONS: The loan documents shall provide, in addition to
 all other provisions required by lender:

a.)   FINANCIAL STATEMENTS AND REPORTS: Guarantor and Borrower shall furnish to
      Lender, within ninety (90) days after the close of each fiscal year, and
      thereafter upon request, current operating and financial statements and/or
      tax returns of Borrower and Guarantors, in form satisfactory to Lender, as
      Lender shall request.

b.)   DUE ON SALE OR ENCUMBRANCE: It shall be an event of default if Borrower
      shall, without the prior written consent of Lender, sell, convey,
      alienate, mortgage or encumber the Collateral, or any part thereof, or any
      interest therein, or shall be divested of its title thereto, whether by
      operation of law or otherwise.

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                       Government Properties Trust, Inc.

CONDITIONS OF CLOSING: The Lender's obligation to disburse the loan contemplated
 hereunder, or any portion thereof, shall be conditioned upon the following
 occurring:

a)    DELIVERY OF LOAN DOCUMENTS; COMPLIANCE: Borrower shall have delivered to
      Lender all documents and other items required hereunder, which shall be in
      such form and content, as Lender shall prescribe. Borrower shall have
      satisfied each provision and condition of this commitment in a manner
      reasonably acceptable to Lender, or Lender shall have waived, in writing,
      Borrower's compliance with a specific provision. Borrower shall provide a
      certified copy of the limited liability company or partnership agreement
      and tax identification number of the Borrower.

b)    PAYMENT OF COSTS BY BORROWER: Regardless of whether the loan closes,
      Borrower shall pay all of the Lender's costs in connection with the
      preparation, closing and disbursement of the loan, including but not
      limited to, title insurance premiums, survey costs, recording fees and
      taxes, fees and expenses of Lender's counsel and all other out-of-pocket
      costs and expenses incurred by Lender in connection with this loan.

c)    NO ADVERSE CHANGE: Borrower shall warrant that there has been no
      deterioration in the financial condition of Borrower or Guarantor and that
      the financial information heretofore submitted to Lender by Borrower and
      Guarantor is accurate and complete in all material respects. Lender will
      be promptly notified of any event which has, or with the passage of time
      could, cause an adverse change in the financial condition of the Borrower
      or Guarantor, so long as any indebtedness represented by loan documents
      remain unpaid.

AFFILIATE AND LOAN PARTICIPANTS: Lender reserves the right to participate this
loan out to various "affiliate and participant" banks. Accordingly, these banks
would receive and approve of relevant financial data. Borrower hereby authorizes
Lender's submission of relevant financial data to its affiliate and participant
banks.

CREDIT AGREEMENT: A credit agreement must be in writing to be enforceable under
Nebraska law. To protect you and us from any misunderstandings or
disappointments, any contract, promise, undertaking, or offer to forebear
repayment of money or to make any other financial accommodation in connection
with this loan of money or grant or extension of credit, or any amendment of,
cancellation of, waiver of, or substitution for any or all of the terms or
provisions of any instrument or document executed in connection with this loan
of money or grant or extension of credit, must be in writing to be effective.

BORROWER ACCEPTANCE OF COMMITMENT: Borrower's acceptance of the commitment must
be by Borrower's approval of this commitment by executing and returning a
duplicate copy of the commitment letter not later than December 30, 2003 at 4:00
p.m.

CANCELLATION OF COMMITMENT: If Borrower has not satisfied all of the
requirements prior to closing date, time being of the essence, or if Borrower
has breached or defaulted in the observance or performance of any of the
undertakings, warranties or representations of

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                       Government Properties Trust, Inc.

Borrower in connection with this loan, the Lender shall have the option without
giving prior notice to borrower to cancel the commitment and terminate all of
the Lender's obligations hereunder (including, without limitation, the
obligation to make any disbursements of the mortgage loan proceeds) and,
thereupon, Lender shall have the right to pursue any other and further legal and
equitable remedies available to Lender.

COMMITMENT EXPIRATION: Closing of this loan transaction must occur within 60
days from the date of commitment acceptance or this commitment shall be
considered null and void.

                              FIRST NATIONAL BANK OF OMAHA

                              By: /s/ Daniel M. Shultz
                                  ------------------------------------------
                                    Daniel M. Shultz, Vice President

                                   ACCEPTANCE

The above outlined terms and conditions are hereby accepted this 29 day of
December, 2003.

Federal ID #_________________       GOVERNMENT PROPERTIES TRUST, INC.,
                                    a___________________ corporation

                                    By:  /s/ Nancy D. Olson - CFO
                                         ----------------------------

                                    Its:  Chief Financial Officer
                                         ----------------------------

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                       Government Properties Trust, Inc.

                                   EXHIBIT "A"

                               SURVEY REQUIREMENTS

A.    A plat of the subject property showing the following:

      (i) The boundary line and area of the subject property showing all
dimensions and all appurtenant easements by courses and distances showing the
area of the subject property, and each parcel thereof, in square feet. If the
subject property is composed of all or portions of several lots or other legal
subdivisions, the boundaries of each should be indicated by dotted lines and the
proper lot number or legal subdivision designation shown. If the survey
comprises more than one parcel, it should show interior lines and facts
sufficient to insure contiguity. Points of beginning used in the description of
the subject property should be identified.

      (ii) The location and type of any buildings, improvements, or structures
on the subject property, the dimensions and area thereof and the distances
therefrom to the nearest facing exterior property lines of the subject property.

      (iii) The location of all easements and rights-of-way affecting or
benefiting the subject property (each of which must be identified by referenced
by the volume and page where recorded).

      (iv) The location of all building set back lines on the subject property.

      (v) All encroachments, conflicts or protrusions onto adjacent property,
streets or alleys of any improvements on the subject property and all
encroachments, conflicts or protrusions onto the subject property from adjacent
property.

      (vi) All abutting dedicated public streets providing access to the subject
property, showing the width and the name thereof, and all sidewalks, parkways,
curbs and driveways, including the street address of all building improvements,
should be shown.

      (vii) All fences (both perimeter and cross) and all walls and other
improvements along the property lines with dimensions. All party walls of
buildings or other structures on the property line indicating the thickness of
the portions thereon on each side of the property and the nature of the use of
said walls on each side.

      (viii) The location of any railroad tracks and boundaries of railway
rights-of-way affecting the subject property.

      (ix) All surface wires and cables crossing, entering or leaving the
subject property, indicating the amount of cross arm or wire overhang and all
anchors and/or guy wires affecting the subject property except ordinary wire
service drops.

      (x) The character and location of all telephone, telegraph or electric
lines; water, sewer, oil or gas pipelines, etc., on or across the surveyed
property and on adjoining properties if they appear to affect the enjoyment of
the surveyed property; the points of connection of all service lines with the
public system.

      (xi) A directional indicator showing North.

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                       Government Properties Trust, Inc.

      B. Any portion of the subject property which is located in a flood plain
or in any other flood hazard or flood danger area as designated by applicable
governmental authorities; if none, so state.

      C. A legal description (metes and bounds) of the subject property which
must coincide with the boundaries shown on the plat and which must be identical
with the description of the subject property, as described in the title
insurance commitment.

      D. (As-built survey only) Show buildings, improvements, and parking area
(including the number of spaces provided by such parking areas and the number of
spaces required by applicable zoning ordinances for such improvements based on
the intended use of the improvements), as well as all matters set forth in A.
through C. above.

      E. The certification signed and sealed by the surveyor, which must be in
substantially the following form:

      TO:   (Title Insurance Company)

            (Borrower)

            (Lender)

            I hereby certify that on the _______ day of ________________, 19___:

      (a) This survey was made on the ground as per the field notes shown on
this survey and correctly shows:

            (i) the boundaries and areas of the subject property and the size,
            location and type of buildings and improvements thereon and the
            distance therefrom to the nearest facing exterior property lines of
            the subject property;

            (ii) the location of all rights-of-way, easements, and any other
            chartable matters of record shown on Commitment for Title Insurance
            No. __________________, dated _____________________, issued by
            ___________________, as agent for ___________________________ (Title
            Insurance Company) (or of which I have knowledge or have been
            advised, whether or not of record) affecting or benefiting the
            subject property,

            (iii) the location of the parking areas on the subject property
            showing the number of parking spaces provided thereby,

            (iv) all abutting dedicated public streets providing access to the
            subject property, together with the width and name thereof, and

            (v) all other significant items on the subject property;

      (b) Except as set forth below, there are no:

            (i) encroachments upon the subject property by improvements on
            adjacent property,

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                       Government Properties Trust, Inc.

            (ii) encroachments on adjacent property, streets or alleys by any
            improvements on the subject property,

            (iii) party walls,

            (iv) conflicts or protrusions.

The exceptions to the above statements are as follows (if none, so state):

      (c) Adequate ingress to and egress from the subject property is provided
by (name of streets), and the same being paved, dedicated public right(s)-of-way
maintained by (name of maintaining authority).

      (d) All required building setback lines on the subject property are
located as shown hereon.

            -----------------------------
            (Signature of Surveyor)

            Registered Land Surveyor
            Registration No.
                            -------------

            -----------------------------
            Name

            -----------------------------
            Address

            -----------------------------
            City, State, and Zip Code

            -----------------------------
            Telephone Number

            -----------------------------
            Job Number of Surveyor

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                       Government Properties Trust, Inc.

                                   EXHIBIT "B"

                                CONTROL AGREEMENT
               REGARDING SECURITY INTEREST IN INVESTMENT PROPERTY

      This Agreement, made as of the __th day of _________, 20__, by and between
First National Bank of Omaha ("BANK"), a national banking association
established at Omaha, Nebraska, ______________________(CUSTOMER"), a resident of
____________________, and First National Capital Markets, Inc. ("COMPANY"), a
corporation with offices at 1620 Dodge St., Omaha, Nebraska

                                    RECITALS:

      A. CUSTOMER is indebted to BANK as the result of one or more promissory
notes, or other evidence of indebtedness. Such indebtedness, whether resulting
from a promissory note, guaranty, letter of credit, or any other document or
cause, is herein called an "OBLIGATION".

      B. For purposes of this agreement, all capitalized terms not otherwise
defined herein have the same meanings as defined in Nebraska Uniform Commercial
Code Section 8-102 (a);

      C. COMPANY is either the issuer of, or a SECURITIES INTERMEDIARY as to,
the FINANCIAL ASSET described as pledged securities in CUSTOMER's Agency Account
#________ (which, together with all cash and stock dividends, stock splits,
rights to subscribe, and any property exchanged for the foregoing, and proceeds
of the same, are hereafter called the "COLLATERAL"); and

      D. CUSTOMER has provided BANK a security interest in the COLLATERAL, and
CUSTOMER desires to provide BANK with control over the COLLATERAL, as such term
is defined in Nebraska Uniform Commercial Code Section 8-106.

      Now, therefore, the parties hereto agree as follows:

      1. COMPANY agrees that it will comply with INSTRUCTIONS and ENTITLEMENT
ORDERS originated by BANK as to the COLLATERAL, without further consent of
CUSTOMER. Until otherwise instructed, CUSTOMER is to receive any cash dividends
attributable to the COLLATERAL.

      2. Notwithstanding the provisions of paragraph 1, above, CUSTOMER retains
the right to originate instructions to COMPANY as to substitutions for the
COLLATERAL, until BANK provides written notice to COMPANY of a default by
CUSTOMER as to the OBLIGATION, following receipt of which only BANK may
originate instructions to COMPANY as to the COLLATERAL.

      3. This Agreement is executed in Nebraska and is subject to the laws of
Nebraska, including the Nebraska Uniform Commercial Code. This Agreement is
effective until terminated by a written notice executed by BANK delivered to
COMPANY, or until the COLLATERAL is no longer registered to or owned by
CUSTOMER.

      4. This Agreement is effective until terminated by a written notice
executed by BANK delivered to COMPANY, or until the COLLATERAL is no longer
registered to or owned by CUSTOMER. Nonetheless, this agreement shall be renewed
on an annual basis, if necessary, subject to approval and acceptance by COMPANY.

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                       Government Properties Trust, Inc.

In witness whereof, the parties have executed this agreement as of the date
first set forth above.

First National Bank of Omaha "BANK"

By
   ---------------------      --------------------
Its:
   -----------------------------------------------

First National Capital Markets, Inc. "COMPANY"

By
   ---------------------      --------------------
Its:
   -----------------------------------------------

-----------------------------------------
 "CUSTOMER"

------------------------------------------
 "CUSTOMER"

12<PAGE>
                                                                    EXHIBIT 10.7

                        GEN-NET LEASE INCOME TRUST, INC.
                          Letter of Intent to Purchase

                                                                November 4, 2003

<TABLE>
<CAPTION>
<S>                <C>                                    <C>

OFFEROR:           Gen-Net Lease Income Trust, Inc. or
                   Assigns (Gen-Net)

Prospective Title
Holder

Contact Name:      Gregg S. Barton                        Title: Vice President
Company:           Genesis Financial Group, Inc.
Address:           2401 West River Road, 1st Floor
City:              Grosse Ile                             State: Michigan  Zip: 48138

E-Mail:            GBARTON@GENNET.BIZ

Phone:             1-800-546-2630                         Fax: 1-734-671-7883

OWNER              Riverdale FDA LLC (Owner)

Current Fee Title
Holder

Contact Name:      T. Michael Scott                       Title:
Company:           Riverdale FDA LLC
Address:           560 Herndon Parkway, Suite 210
City:              Herndon                                State: Virginia Zip: 20170

E-Mail:            tmscott@cambridgeus.com

Phone:             703-709-8866, ext. 612                 Fax: 703-709-0638

PROPERTY:          FDA College Park, Maryland (Property)

Address:
City:              College Park                           State: Maryland   Zip:
</TABLE>

Brief Legal:
Consisting of:     The proposed facility will be approximately 81,700 square
                   foot contained in a 3 story building situated on 4.38 acres
                   in College Park, Maryland in Prince George's County. The site
                   is located in a suburban office park and is adjacent to the
                   College Park Metro Station. The site is zoned MXT and is part
                   of the College Park TDOZ. The project is designed to comply
                   with the TDOZ guidelines. Parking for 160 cars will be
                   provided. The soil conditions will support the structure
                   utilizing normal construction methods.

                   The building is a steel structure that is clad with a
                   combination of brick and curtain wall. The structure will
                   bear on spread footings. The first floor structure will be
                   15' floor-to-floor height to accommodate laboratory use and
                   the second and third floors will have

<PAGE>

                   13'4" floor-to-floor heights. The roof will be standard grade
                   EPDM. The window system will be a combination of strip and
                   punched windows, creating an interesting facade as required
                   in the TDOZ. There will be one or two dock-high loading areas
                   in the rear of the building.

                   The core of the building will be completely fitted out. Two
                   elevators will be included in the project. Air conditioning
                   and lighting will be provided for the area that is leased by
                   the FDA. The balance of the rental area will be shell only.
                   Roof-top equipment will be fully screened.

                   Attached as Exhibit A is a project description which by this
                   reference incorporated herein.

TENANT:            General Services Administration, United States of America

Occupant:          Food and Drug Administration

Rental and Terms:  FDA Lease - Not less than ten years firm; Rental
                   Rate - See Attached Income Summary and FDA-MD 10 Year APOD,
                   by this reference incorporated herein.

Dear Mr. Scott:

This letter of Intent sets forth the mutual intent of the parties regarding the
sale by Owner and the purchase by Gen-Net or an approved affiliate of that real
property and the existing improvements located thereof (including all personal
property of Owner located thereon and used in the operating thereof and all
parts and replacements inventories, if any) described above ("Property")
pursuant to the purchase price and other terms as outlined herein.

1. AGREEMENT: Subject to the provision of Section 12, on or prior to November
28, 2003, a mutually satisfactory agreement for purchase and sale of the
Property ("Agreement") shall be executed between Gen-Net and Owner setting forth
inter alia the terms and conditions contained herein below and any other matters
necessary for the consummation of the contemplated transaction in accordance
with the intent expressed in this Letter of Intent. Buyer shall deliver to
seller a first draft of the Agreement as set forth below.

2. PURCHASE PRICE:

      A. The total purchase price of the Property will be Twenty-Three Million
Five Hundred Thousand and No/100 Dollars ($23,500,000.00) ("Purchase Price"),
which shall be payable as set forth below at closing, adjusted for deposits,
charges, credits and prorates made pursuant to the Agreement, including Section
2C herein. The Purchase Price contemplates Gen-Net assuming the existing
American National Insurance Company loan as evidenced by a promissory note in
the original principal amount of Sixteen Million Six Hundred Fifty Thousand Five
Hundred and No/100 Dollars ($16,650,500.00), dated as of December 12, 2002. The
balance of the Purchase Price, after deducting the principal amount of the loan
outstanding as of

                                      -2-
<PAGE>

the closing date which is being assumed by Gen-Net, shall be paid to Owner, in
cash at closing. All loan assumption fees, transfer fees and the like and all of
lender's fees and expenses incurred in connection with such assumption shall be
paid by Gen-Net.

      B. Notwithstanding the foregoing, in the event, at Closing, the 14,917
rentable square feet (13,101 usable square feet) of spec space (the "Spec
Space") is not leased, Gen-Net shall pay Owner the purchase price as follows:

      (i) Twenty One Million One Hundred Thousand and No/100 Dollars
($21,100,000.00) shall be payable to Owner at Closing represented by (a) an
assumption of the then outstanding principal balance of the Loan (the "Assumed
Principal Balance") and (b) the excess between the Twenty One Million One
Hundred Thousand and No/100 Dollars ($21,100,000.00) and the Assumed Principal
Balance being paid to Owner in cash; and

      (ii) Two Million Four Hundred Thousand and No/100 Dollars ($2,400,000.00),
subject to the adjustment in Section 2C, below, shall be payable to Owner in
cash at such time as the Spec Space is leased and the lease commences on the
Spec Space. Seller shall use its reasonable efforts to lease the Spec Space.
Seller shall be responsible for the cost of the initial tenant improvements on
the Spec Space and leasing commissions associated with the initial leasing of
the Spec Space. Gen-Net shall advance such amounts, which amounts shall reduce
the amount to be paid to Owner under the terms of this Section 2(ii).

      C. The Purchase Price represents an in-going, capitalization rate
(Capitalization Rate) of Eight and 50/100th percent (8.50%) on projected first
year Net Operating Income (NOI) after reserves of $.10 per square foot. The
Purchase Price shall be adjusted in the Agreement after the Spec Space is leased
to reflect a Capitalization Rate of Eight and 50/100th percent (8.50%) on NOI
after the above-noted $.10 per square foot reserves. The foregoing adjustment
shall apply, without duplication, only to Sections 2(A) and 2(B)(ii), above.

      D. Prior to Closing, Owner will forward to Gen-Net copies of any lease
proposals relating to the Spec Space. During the Inspection Period, Gen-Net
shall have no right to approve any proposed lease relating to the Spec Space.
Subsequent to the Inspection Period, Gen-Net will have the right, in its sole
discretion, to approve any proposed lease relating to the Spec Space.

3. DEPOSIT: At the time of the execution of the Agreement by Gen-Net, Gen-Net
shall deposit the amount of One Hundred Thousand and No/100 dollars
($100,000.00) ("Deposit") in an escrow account with a yet to be determined
escrow company ("Escrow Company") mutually acceptable to Gen-Net and Owner.
Within 10 days of the conclusion of the Inspection Period if Gen-Net does not
elect to terminate the Agreement, Gen-Net shall increase the deposit to Five
Hundred Thousand and No/100 Dollars ($500,000.00). Should Gen-Net default under
the terms of the Agreement, the Deposit, as well as all interest accrued thereon
if any, shall be surrendered to Owner as total liquidated damages and Owner's
sole remedy (exclusive of liability under any indemnities of Gen-Net which
survive a termination of the Agreement). Should the transaction fail to close
for any reason other than Gen-Net's default, the Deposit, as well as all
interest accrued thereon, shall be returned to Gen-Net.

                                      -3-
<PAGE>

4. TITLE INSURANCE: Gen-Net shall obtain a commitment for insurance under an
Owner's Extended Coverage Policy of Title Insurance (ALTA form) issued by the
Escrow Company.

The Escrow Company after the effective date of thee Agreement will commit to
insure that provided the premium is paid, all Schedule B, Section 1 requirements
are met, the Special Warranty Deed is recorded and any other requirements under
the Agreement are satisfied, fee simple title will vest in Gen-Net at closing
subject to standard ALTA title policy printed exceptions (Schedule B, Section 2.
Exceptions) and such other exceptions as will not interfere with the
contemplated use, leasing, financing or resale of the Property. The cost of the
title insurance policy shall be paid for by Gen-Net. Owner shall convey by
Special Warranty Deed to Gen-Net good and indefeasible fee simple title to the
Property, subject only to the encumbrances, easements, right-of-ways and other
exceptions to title as shall be approved by Gen-Net during the Inspection
Period.

5. INSPECTION PERIOD: Gen-Net shall have a period not to exceed forty-five (45)
days from the date of execution of this Letter of Intent ("Inspection Period")
to review or to conduct (at Gen-Net's expense) all those inspections, tests,
surveys, examinations and other studies (collective, the "Test") which Gen-Net
may desire to conduct, with the purpose of satisfying itself in its sole and
absolute discretion that the Property and the lease(s) thereon are acceptable
and satisfactory to Gen-Net, that the Property is suitable for Gen-Net's
purposes and that the Property meets or exceeds all underwriting, legal and
regulatory standards and requirements of Gen-Net, provided that (i) such Tests
are non-invasive, (ii) at least forty-eight (48) hours advance written notice is
given to Owner of the entrance onto the Property and conducting of any Tests,
(iii) such Tests conducted subject to rights of Tenants, (iv) insurance
acceptable to Owner is carried by Gen-Net and its agents, (v) such Tests are
conducted during normal business hours, (vi) an indemnity acceptable to Owner is
provided by Gen-Net and (vii) Gen-Net delivers a copy of all Tests to Owner.

Within three (3) days after the final execution of the Agreement, Owner shall
provide to Gen-Net without representation, financial statements, contracts for
services, leases (a copy of the fully executed lease, lease memorandum and all
amendments), construction and development documents, warranties, surveys,
environmental reports or studies, permits and certifications for occupancy
provided same is in its possession and material to the status or condition of
the Property to facilitate Gen-Net in conducting its due diligence activities
during the Inspection Period (collectively, the "Material"), excluding any
proprietary or confidential material. Gen-Net shall obtain, at Gen-Net's cost,
an ALTA/ACSM Land Title Survey of the Property no later than thirty (30) days
prior to the conclusion of the Inspection Period, said survey to be dated no
later than ninety (90) days prior to closing.

This Inspection Period may be extended by Gen-Net, solely for purposes of
delaying the Closing referenced in Paragraph 7 below, for an additional twenty
(20) business days upon delivery to Owner prior to the conclusion of this
Inspection Period written notice of Gen-Net's intent to extend the Inspection
Period increasing the Earnest Money to Five Hundred Thousand and No/100 Dollars
($500,000.00) and declaring the Deposit provided for herein as non-refundable,
subject only to Owner possessing insurable, marketable fee title.

                                      -4-
<PAGE>

6. TERMINATION OF AGREEMENT BY GEN-NET LEASE INCOME TRUST, INC.: In the event
that Gen-Net is unable to satisfy itself with respect to its investigations and
the suitability of the Property within the forty-five (45) day Inspection Period
referenced in Paragraph 5 above (but expressly not including the extended period
provided for above), Gen-Net shall have the right to terminate the Agreement
without penalty or liability other than with respect to indemnities which
survive a termination and the Deposit, together with interest accrued thereon,
if any, shall be returned to Gen-Net.

7. CLOSING: Closing will occur on the later of thirty (30) days after the end of
the Inspection Period or on the first business day following the 15th day after
the commencement of the lease of a portion of the Property to the United States
of America under FDA Lease subject to the satisfaction of conditions precedent
as set forth herein. If the Closing Date has not occurred by March 31, 2005,
either Owner or Gen-Net may terminate the Agreement.

8. CLOSING COSTS: At the closing, Gen-Net shall pay (i) the cost of any
mortgagee's title insurance commitment and policy, (ii) survey update, if any,
(iii) those costs described in Section 2, above, (iv) all due diligence costs
and expenses, and (v) the cost of the Owner's title insurance. Owner shall pay
recording costs on corrective title instruments and releases. Gen-Net and Owner
shall evenly split the cost of the escrow closing and transfer and recordation
taxes. Each party shall pay its own attorneys' fees.

9. STANDSTILL AGREEMENT: The purpose of a standstill agreement is to give
Gen-Net and Owner some protection against his or her investment in time and
expenses necessary to perform all tasks related to completing the Agreement
above referenced such as attorneys or accountants fees, appraisal fees, title
searches, among other costs.

For and in consideration of the time and expenses to be invested by the parties
until thirty (30) days after the execution of this Letter of Intent (the
"Standstill Period"), the Owner agrees not to seek or engage in negotiations
with additional potential buyers for the assets covered by the Letter of Intent
other than Gen-Net. This agreement is binding upon the parties and shall survive
the Standstill Period and the termination hereof. Notwithstanding the foregoing,
assuming the Agreement is executed, after the Standstill Period, Owner shall be
entitled to execute "back-up" purchase and sale agreements on the Property
subject to the Agreement.

10. BROKERAGE: Owner and Gen-Net agree that no brokerage fee is due to any third
party in connection with the contemplated transaction, and agree that neither
party will pay a brokerage commission or finder's fee to any third party under
the Agreement, except a fee not to exceed one percent (1.0%) of the gross
Purchase Price to CB Richard Ellis and one percent (1%) of the gross Purchase
Price to Cambridge Property Group, L.P. ("Broker(s)") which will be paid by
Owner if and only if the transaction contemplated herein actually closes.
Brokers shall certify as to the aggregate amount of fees received from all
parties. Gen-Net and Owner further agree to hold harmless and defend one another
under the Agreement against all costs and claims for broker's commissions or
finder's fees made by any other person other than Broker in connection with the
contemplated transaction.

11. CONDITIONS PRECEDENT: An Agreement may be executed on behalf of Gen-Net only
by its Chairman or its President and shall be subject to the following
conditions precedent:

                                      -5-
<PAGE>

      i.    Approval of the acquisition by the Board of Directors of Gen-Net,
            such approval and the notice thereof to be forthcoming in written
            form prior to the conclusion of the Inspection Period. Should the
            Board of Directors not approve the acquisition prior to the
            conclusion of the Inspection Period, Gen-Net shall have the right to
            terminate the Agreement without penalty or liability and the
            Deposit, together with interest accrued thereon, if any, shall be
            returned to Gen-Net. If Gen-Net fails to terminate the Agreement
            prior to the conclusion of the Inspection Period, Gen-Net shall be
            deemed to conclusively represent that it has obtained the requisite
            approval.

      ii.   Delivery of Gen-Net of the following documents and records that are
            reasonably required and necessary for Gen-Net to meet its disclosure
            obligations as a public company (i) a Letter of Representation in
            the form of Exhibit A attached hereto and (ii) financial information
            on the Property for as long as owned or operated by the Owner
            sufficient for Gen-Net's auditors, at its expense, to be able to
            prepare AICPA standard audited financial statements, provided that
            Gen-Net shall promptly notify the Owner in writing prior to the
            expiration of the Inspection Period of any shortcoming in said
            reasonably required materials and provided further that the Owner
            shall not be required to produce any materials that do not already
            exist; should the financial records prove to be not auditable under
            the reasonable application of AICPA Standards and Owner fails to
            furnish the appropriate material, Gen-Net shall have the right
            during the Inspection Period to terminate the Agreement without
            penalty or liability and the Deposit, together with interest accrued
            thereon, if any, shall be returned to Gen-Net.

      iii.  Owner Shall deliver to Gen-Net at closing a lease status letter from
            Tenant; and,

      iv.   Further conditioned upon substantial completion of the improvements
            leased to the GSA, issuance of an Occupancy Permit or equivalent for
            the space to be occupied by the FDA and acceptance of premises and
            commencement of the lease by the GSA.

12. EXCLUSIVITY: With the exception of Section 9, it is understood that neither
Gen-Net nor Owner shall incur any liability or obligation by reason of this
Letter of Intent and neither party shall be obligated to the other until the
Agreement is executed. Either party may withdraw from negotiations at any time
for any reason, or no reason at all, prior to the execution of the Agreement by
delivering written notice of such withdrawal to the other party.

13. CONFIDENTIALITY: Unless Owner specifically and expressly otherwise agrees in
writing, Gen-Net agrees that all information regarding the Property of
whatsoever nature made available to it by Owner or Owner's agents or
representatives (collectively, the "Proprietary Information") is confidential
and shall not be disclosed to any other person except those assisting Gen-Net
with the transaction or Gen-Net's investors, and then only upon Offeror making
such person aware of the confidentiality restriction and procuring such person's
agreement to be bound thereby. In the event the purchase and sale contemplated
hereby fails to close for any reason whatsoever, Gen-Net agrees to return to
Owner, or cause to be returned to Owner, all Proprietary Information. Further,
Offeror agrees not to use or allow to be used any Proprietary Information for
any purpose other than to determine whether to proceed with the contemplated
purchase, or if same is

                                      -6-
<PAGE>

consummated, in connection with the operation of the Property post-closing.
Notwithstanding any other term of this Letter of Intent, the provisions of this
paragraph shall survive closing or the termination of this Letter of Intent. If
the Agreement is not executed by Offeror and Owner on or before November 10,
2003, all of the Proprietary Information shall be returned promptly by Offeror
to Owner.

The purpose of this letter is to reach an understanding on the general terms of
a proposed agreement before expending the time and cost of preparing such an
agreement. It is expressly understood and agreed that this letter is not a
contract and that this letter creates no legal rights or obligations whatsoever
between the parties with the exception of Section 9. Nevertheless, it is the
intent of the parties to cause a mutually acceptable agreement to be
expeditiously prepared incorporating the terms and conditions set out in this
Letter of Intent, together with other mutually acceptable terms and conditions
customarily contained in purchase and sale agreements for properties similar to
the subject property and other mutually acceptable terms and conditions which
are applicable to this transaction. The parties agree that neither party shall
have any rights, liability, or obligations relating to the subject matter hereof
in the event that they are unable or shall fail to reach an agreement on a
mutually acceptable agreement and execute that agreement.

Time is of the essence with respect to the terms of this Letter of Intent.

This Letter of Intent is subject to the approval of the board of managers of the
Owner in which Owner shall obtain or notify Gen-Net of its failure to obtain
within fifteen (15) business days from the date of execution of this Letter of
Intent by Owner and Gen-Net.

Unless accepted by Owner, this Letter of Intent is withdrawn effective 5:00 p.m.
the 10th day of November, 2003.

Please indicate your confirmation and approval of the foregoing statements of
intent by countersigning a copy of the Letter of Intent and returning same to
the attention of the Gen-Net Lease Income Trust, Inc.

Gen-Net Lease Income Trust,
Inc., Offeror                          Riverdale FDA LLC, Owner

/s/ Thomas D. Peschio                   /s/ Andrew J. Czekaj
----------------------------------      ----------------------------------------
Name: Thomas D. Peschio                 Name: Andrew J. Czekaj
Title: President/CEO                    Title: Manager

Dated: 11/4/03                          Dated:
                                              ----------------------------------

                                      -7-
<PAGE>

                                    EXHIBIT A

                               PROJECT DESCRIPTION

               [to be provided by Owner upon its execution hereof]

                                     - A1 -

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