Document:

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                                                                   EXHIBIT 10.02

               FIRST AMENDMENT TO AGREEMENT FOR PURCHASE AND SALE
                    OF REAL PROPERTY AND ESCROW INSTRUCTIONS

         THIS AMENDMENT TO AGREEMENT FOR PURCHASE AND SALE OF REAL PROPERTY AND
ESCROW INSTRUCTIONS (the "Amendment") is made as of the 29th day of March, 2004,
by and between WESTERN PLACE SKYRISE, LTD, a Texas limited partnership
("Seller") and TRIPLE NET PROPERTIES, LLC, a Virginia limited liability company
("Buyer").

                                    RECITALS:

         A.       Seller and Buyer entered into an Agreement for Purchase and
Sale of Real Property and Escrow Instructions (the "Agreement") dated February
26, 2004 for the purchase and sale of Western Place I & II, located at 6000 &
6100 Western Place, Ft. Worth, Texas, and more specifically described in the
Agreement.

         B.       The Seller and Buyer desire to amend the Agreement on the
terms contained herein.

         NOW, THEREFORE, for and in consideration of the foregoing, and other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Seller and Buyer intending to be legally bound, agree that the
Agreement is hereby amended as follows:

                  1.       All capitalized terms used herein shall have the
                           meanings given them in the Agreement, unless they are
                           otherwise specifically amended herein.

                  2.       Buyer and Seller hereby acknowledge that, except as
                           hereby expressly modified, the Agreement shall be
                           unchanged, shall remain in full force and effect and
                           is hereby expressly ratified and confirmed by Seller
                           and Buyer.

                  3.       Section 5.1 is hereby amended to provide that the Due
                           Diligence Period shall expire at 5:00 P.M. Pacific
                           time on April 6, 2004.

                  4.       The Agreement may not be further modified except by
                           an instrument in writing signed by each of the
                           parties hereto.

                  5.       This Amendment may be executed in multiple
                           counterparts, each of which shall constitute an
                           original and all of which shall constitute one and
                           the same agreement. This Amendment may be delivered
                           by facsimile, and such facsimile counterparts shall
                           be valid and binding on the parties with the same
                           effect as if original signatures had been exchanged.

         IN WITNESS WHEREOF, the Seller and Buyer have caused this Amendment to
be executed by their duly authorized representative thereof.

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SELLER:

WESTERN PLACE SKYRISE, LTD.,
a Texas limited partnership

By:      WESTERN PLACE SKYRISE, GP, LLC.,
         its general partner

         By:      /s/ LEORA AZOULAY-LESH
                  ------------------------------------------
         Name:    Leora Azoulay-Lesh
         Title:   Vice President

EXECUTED on this 29th day of March, 2004

BUYER:

TRIPLE NET PROPERTIES, LLC,
a Virginia limited liability company

By:      /s/ ANTHONY W. THOMPSON
         ----------------------------------------------
         Anthony W. Thompson
         President<PAGE>

                                                                   EXHIBIT 10.03

                       REINSTATEMENT AND SECOND AMENDMENT
                      TO AGREEMENT FOR PURCHASE AND SALE OF
                       REAL ESTATE AND ESCROW INSTRUCTIONS

         THIS REINSTATEMENT AND SECOND AMENDMENT TO AGREEMENT FOR PURCHASE AND
SALE OF REAL PROPERTY AND ESCROW INSTRUCTIONS (this "Amendment") dated effective
as of May 4, 2004, is made by and between WESTERN PLACE SKYRISE, LTD., a Texas
limited partnership (hereinafter called "SELLER"), and TRIPLE NET PROPERTIES,
LLC, a Virginia limited liability company (hereinafter called "BUYER").

                                    RECITALS:

         A.       Seller and Buyer entered into that certain Agreement for
Purchase and Sale of Real Property and Escrow Instructions, dated as of February
27, 2004 (as amended by First Amendment to Agreement for Purchase and Sale of
Real Property and Escrow Instructions dated March 29, 2004, the "Agreement")
pertaining to the property known as Western Place I & II, located at 6000 and
6100 Western Place, Fort Worth, Texas, and more particularly described in the
Agreement. All capitalized terms not defined herein shall have the same meaning
given to them in the Agreement.

         B.       The Agreement terminated as of April 6, 2004 because Buyer
failed to send written notice to Seller that Buyer approved the condition of the
Real Property.

         C.       The parties now desire to reinstate the Agreement.

         D.       The Buyer and Seller also desire to amend the Agreement on the
terms and conditions set forth below.

                                   AGREEMENT:

         NOW, THEREFORE, for and in consideration of the foregoing recitals, Ten
and No/100 Dollars ($10.00) in hand paid, and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged,
Seller and Buyer hereby agree as follows:

         1.       The Agreement is reinstated as of the date hereof and Buyer
and Seller ratify and confirm the Agreement and the terms and conditions
thereof, as modified by this Amendment. Buyer acknowledges the Due Diligence
Period has expired and Buyer shall not have the right to terminate the Agreement
pursuant to Section 5.2 of the Agreement. Buyer has accepted the physical
condition of the Property and the state of title and condition of the Property
reflected by the Survey.

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         2.       The first sentence of Section 2 of the Agreement is deleted
and the following is substituted in lieu thereof:

                  (a)      "The Purchase Price is THIRTY THREE MILLION FIVE
                           HUNDRED THOUSAND AND NO/100 DOLLARS ($33,500,000.00)
                           (the "PURCHASE PRICE"), and payable as follows:"

         3.       Subsection 2.1.1 of the Agreement is deleted and the following
is substituted in lieu thereof:

                  (a)      "2.1.1 On or before April 28, 2004, Buyer will
                           deposit Five Hundred Thousand and No/100
                           ($500,000.00) (the "DEPOSIT") in the form of a wire
                           transfer payable to Partners Title Company, 712 Main
                           Street, Suite 2000E, Houston, Texas 77002, Attention:
                           Karen Highfield, Telephone: 713-229-8484, Facsimile
                           713-238-9177 ("ESCROW HOLDER"). Escrow Holder shall
                           place the Deposit into an interest bearing money
                           market account at a bank or other financial
                           institution reasonably satisfactory to Buyer, and
                           interest thereon shall be credited to Buyer's account
                           and shall be deemed to be part of the Deposit.

         4.       Subsection 6.2 of the Agreement is deleted and the following
is substituted in lieu thereof:

                  (a)      "6.2 Close of Escrow. Escrow shall close ("CLOSE OF
                           ESCROW") on or before June 11, 2004, or such earlier
                           date as may be agreed upon in writing by the parties;
                           provided, however, Buyer, at its option, may extend
                           the Close of Escrow to July 12, 2004 by providing
                           written notice to Seller on or before June 8, 2004,
                           and within one business day thereafter depositing
                           with the Escrow Agent an additional Two Hundred Fifty
                           Thousand and No/100 Dollars ($250,000.00) (the
                           "ADDITIONAL DEPOSIT") to be held as part of the
                           Deposit.

         5.       Section 21 of the Agreement is deleted and the following is
substituted in lieu thereof:

                  (a)      "21 Real Estate Commission. Seller and Buyer each
                           represent and warrant to the other that neither
                           Seller nor Buyer has contacted or entered into any
                           Agreement with any real estate broker, agent, finder
                           or any other party in connection with this
                           transaction, and that neither party has taken any
                           action which would result in any real estate
                           broker's, finder's or other fees or commissions being
                           due and payable to any party with respect to the
                           transaction contemplated hereby, except that Seller
                           has contracted with CB Richard Ellis as its broker
                           and will pay a commission equal to one percent (1%)
                           times the Purchase Price to said broker. Each party
                           hereby indemnifies and agrees to hold the other party
                           harmless from any loss, liability, damage, cost, or
                           expense (including reasonable attorneys' fees)
                           resulting to the other party by reason of a breach of
                           the representation and warranty made by such party in
                           this Paragraph.

                                      -2-
<PAGE>

         6.       The Agreement is hereby amended by adding the following
additional Section:

                  (a)      23. Buyer's Right to Designate Multiple Grantees.
                           Seller and Buyer agree that the Buyer intends to
                           direct the Seller to convey the Property to multiple
                           grantees who will take title to the Property as
                           tenants in common. Seller agrees to convey the
                           Property to such grantees as Buyer shall designate in
                           writing no less than four (4) business days prior to
                           the Close of Escrow.

         7.       Notwithstanding anything to the contrary contained herein and
in addition to the Conditions Precedent contained in Section 9.1 Agreement, the
obligations of Buyer to purchase the Property pursuant to the Agreement shall,
at the option of Buyer, be subject to Seller obtaining and delivering to Buyer a
"clean closure" letter from the Texas Commission on Environmental Quality
("TCEQ") Central Office in Austin, Texas, after submitting a revised "Release
Determination Report" to TCEQ regarding the underground storage tank on the
Property.

         8.       Except as expressly amended hereby, all other terms and
conditions of the Agreement are and shall remain in full force and effect.

         9.       Facsimile signatures appearing hereon shall be deemed to be
originals, and this Amendment may be executed in two or more counterparts, each
of which shall be deemed originals and all of which together shall constitute
one and the same instrument.

                                      -3-
<PAGE>

         IN WITNESS WHEREOF, each of the undersigned, by its duly authorized
representative, hereby executes and delivers this Amendment as of the date first
above written.

                                     SELLER:

                                     WESTERN PLACE SKYRISE, LTD.,
                                     a Texas limited partnership

                                     By:      Western Place Skyrise GP, LLC,
                                              a Texas limited liability company

                                     By: /s/ LEORA AZOULAY-LESH
                                         ---------------------------------------
                                     Name: Leora Azoulay-Lesh
                                     Title: V.P. Skyrise Properties

                                     BUYER:

                                     TRIPLE NET PROPERTIES, LLC,
                                     a Virginia limited liability company

                                     By: /s/ ANTHONY W. THOMPSON
                                         ---------------------------------------
                                     Name: Anthony W. Thompson
                                     Title: President

                                      -4-

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