<PAGE>

NOTICE OF CONFIDENTIALITY RIGHTS: IF YOU ARE A NATURAL PERSON, YOU MAY REMOVE OR
STRIKE ANY OF THE FOLLOWING INFORMATION FROM THIS INSTRUMENT BEFORE IT IS FILED
FOR RECORD IN THE PUBLIC RECORDS: YOUR SOCIAL SECURITY NUMBER OR YOUR DRIVER'S
LICENSE NUMBER.

================================================================================


       BEHRINGER HARVARD TRAVIS TOWER S LP, a Delaware limited partnership
                                       and
      BEHRINGER HARVARD TRAVIS TOWER H LP, a Delaware limited partnership,
                                   as Borrower
                                                            (together, BORROWER)

                                       to


                BEAR STEARNS COMMERCIAL MORTGAGE, INC., as Lender
                                                            (Lender)


                         ASSIGNMENT OF LEASES AND RENTS

                          Dated: As of October 1, 2004

                         Property Location:   Travis Tower
                                              1301 Travis Street
                                              Houston, Texas



                              PREPARED BY AND UPON
                             RECORDATION RETURN TO:

                            Kelley Drye & Warren LLP
                                 101 Park Avenue
                            New York, New York 10178
                         Attention: Paul A. Keenan, Esq.


================================================================================

<PAGE>

                         ASSIGNMENT OF LEASES AND RENTS

        THIS ASSIGNMENT OF LEASES AND RENTS (this "Assignment") made as of the
1st day of October, 2004, by BEHRINGER HARVARD TRAVIS TOWER S LP, a Delaware
limited partnership and BEHRINGER HARVARD TRAVIS TOWER H LP, a Delaware limited
partnership, as assignor, each having its principal place of business c/o
Behringer Harvard Funds, 15601 Dallas Parkway, Suite 600, Addison, Texas 75001
(together, "BORROWER") to BEAR STEARNS COMMERCIAL MORTGAGE, INC., a New York
corporation, as assignee, having an address at 383 Madison Avenue, New York, New
York 10179 ("LENDER").

                              W I T N E S S E T H:

        WHEREAS, this Assignment is given in connection with a loan in the
principal sum of Thirty-Seven Million Seven Hundred Fifty Thousand and No/100
Dollars ($37,750,000.00) (the "LOAN") made by Lender to Borrower pursuant to
that certain Loan Agreement, dated as of the date hereof (as the same may
hereafter be amended, restated, replaced, supplemented, renewed, extended or
otherwise modified from time to time, the "LOAN AGREEMENT") and evidenced by
that certain Promissory Note, dated the date hereof, given by Borrower to Lender
(as the same may hereafter be amended, restated, replaced, supplemented,
renewed, extended or otherwise modified from time to time, the "NOTE");

        WHEREAS, Borrower desires to secure the payment of the Debt (as defined
in the Loan Agreement) and the performance of all of its obligations under the
Note, the Loan Agreement and the other Loan Documents; and

        WHEREAS, this Assignment is given pursuant to the Loan Agreement, and
payment, fulfillment, and performance by Borrower of its obligations thereunder
and under the other Loan Documents is secured hereby, and each and every term
and provision of the Loan Agreement and the Note, including the rights,
remedies, obligations, covenants, conditions, agreements, indemnities,
representations and warranties therein, are hereby incorporated by reference
herein as though set forth in full and shall be considered a part of this
Assignment.

        NOW THEREFORE, in consideration of the making of the Loan by Lender and
the covenants, agreements, representations and warranties set forth in this
Assignment:

                             ARTICLE 1 - ASSIGNMENT

        Section 1.1 PROPERTY ASSIGNED. Borrower hereby absolutely and
unconditionally assigns and grants to Lender the following property, rights,
interests and estates, now owned, or hereafter acquired by Borrower:

        (a)     LEASES. All leases, subleases or subsubleases, lettings,
licenses, concessions or other agreements made a part thereof (whether written
or oral and whether now or hereafter in effect), pursuant to which any Person is
granted a possessory interest in, or a right to use or occupy, all or any
portion of any space in that certain lot or piece of land, more particularly
described in Exhibit A annexed hereto and made a part hereof, together with the
buildings, structures, fixtures, additions, enlargements, extensions,
modifications, repairs,

<PAGE>

replacements and improvements now or hereafter located thereon (collectively,
the "PROPERTY") and every modification, amendment or other agreement relating to
such leases, subleases, subsubleases, or other agreements entered into in
connection with such leases, subleases, subsubleases, or other agreements and
every guarantee of the performance and observance of the covenants, conditions
and agreements to be performed and observed by the other party thereto, and the
right, title and interest of Borrower, its successors and assigns, therein and
thereunder.

        (b)     OTHER LEASES AND AGREEMENTS. All other leases and other
agreements, whether or not in writing, affecting the use, enjoyment or occupancy
of the Property or any portion thereof now or hereafter made, whether made
before or after the filing by or against Borrower of any petition for relief
under the Bankruptcy Code together with any extension, renewal or replacement of
the same. This Assignment of other present and future leases and present and
future agreements being effective without further or supplemental assignment.
The "leases" described in Subsection 1.1(a) and the leases and other agreements
described in this Subsection 1.1(b) are collectively referred to as the
"LEASES."

        (c)     RENTS. All rents, rent equivalents, income, receivables,
revenues, receipts, insurance proceeds, deposits and profits arising from the
Leases and renewals thereof together with all rents, rent equivalents, income,
fees, receivables, accounts, profits (including, but not limited to, all oil and
gas or other mineral royalties and bonuses), charges for services rendered and
any and all payment and consideration of whatever form or nature received by
Borrower or its agents or employees from any and all sources relating to the
use, enjoyment and occupancy of the Property whether paid or accruing before or
after the filing by or against Borrower of any petition for relief under the
Bankruptcy Code (collectively, the "RENTS").

        (d)     BANKRUPTCY CLAIMS. All of Borrower's claims and rights (the
"BANKRUPTCY CLAIMS") to the payment of damages arising from any rejection by a
lessee of any Lease under the Bankruptcy Code.

        (e)     LEASE GUARANTIES. All of Borrower's right, title and interest in
and claims under any and all lease guaranties, letters of credit and any other
credit support (individually, a "LEASE GUARANTY," collectively, the "LEASE
GUARANTIES") given by any guarantor in connection with any of the Leases or
leasing commissions (individually, a "LEASE GUARANTOR," collectively, the "LEASE
GUARANTORS") to Borrower.

        (f)     PROCEEDS. All proceeds from the sale or other disposition of the
Leases, the Rents, the Lease Guaranties and the Bankruptcy Claims.

        (g)     OTHER. All rights, powers, privileges, options and other
benefits of Borrower as lessor under the Leases and beneficiary under the Lease
Guaranties, including without limitation the immediate and continuing right to
make claim for, receive and collect all Rents payable or receivable under the
Leases and all sums payable under the Lease Guaranties or pursuant thereto (and
to apply the same to the payment of the Debt or the Other Obligations), and to
do all other things which Borrower or any lessor is or may become entitled to do
under the Leases or the Lease Guaranties.

                                      -2-
<PAGE>

        (h)     ENTRY. The right, at Lender's option, upon revocation of the
license granted herein, to enter upon the Property in person, by agent or by
court-appointed receiver, to collect the Rents.

        (i)     POWER OF ATTORNEY. Borrower's irrevocable power of attorney,
coupled with an interest, to take any and all of the actions set forth in
Section 3.1 of this Assignment and any or all other actions designated by Lender
for the proper management and preservation of the Property.

        (j)     OTHER RIGHTS AND AGREEMENTS. Any and all other rights of
Borrower in and to the items set forth in subsections (a) through (i) above, and
all amendments, modifications, replacements, renewals and substitutions thereof.

                        ARTICLE 2 - TERMS OF ASSIGNMENT

        Section 2.1 PRESENT ASSIGNMENT AND LICENSE BACK. It is intended by
Borrower that this Assignment constitute a present, absolute assignment of the
Leases, Rents, Lease Guaranties and Bankruptcy Claims, and not an assignment for
additional security only. Nevertheless, subject to the terms of this Section 2.1
and the Cash Management Agreement, Lender grants to Borrower a revocable license
to collect, receive, use and enjoy the Rents and other sums due under the Lease
Guaranties and Borrower shall hold such Rents and all sums received pursuant to
any Lease Guaranty, or a portion thereof sufficient to discharge all current
sums due on the Debt, in trust for the benefit of Lender for use in the payment
of such sums.

        Section 2.2 NOTICE TO LESSEES. Borrower hereby authorizes and directs
the lessees named in the Leases or any other future lessees or occupants of the
Property and all Lease Guarantors to pay over to Lender or to such other party
as Lender directs all Rents and all sums due under any Lease Guaranties upon
receipt from Lender of written notice to the effect that Lender is then the
holder of this Assignment and that an Event of Default (as defined in the Loan
Agreement) exists, and to continue so to do until otherwise notified by Lender.

        Section 2.3 INCORPORATION BY REFERENCE. All representations, warranties,
covenants, conditions and agreements contained in the Loan Agreement and the
other Loan Documents as same may be modified, renewed, substituted or extended
are hereby made a part of this Assignment to the same extent and with the same
force as if fully set forth herein.

                              ARTICLE 3 - REMEDIES

        Section 3.1 REMEDIES OF LENDER. Upon or at any time after the occurrence
of an Event of Default, the license granted to Borrower in Section 2.1 of this
Assignment shall automatically be revoked, and Lender shall immediately be
entitled to possession of all Rents and sums due under any Lease Guaranties,
whether or not Lender enters upon or takes control of the Property. In addition,
Lender may, at its option, without waiving such Event of Default, without regard
to the adequacy of the security for the Debt, either in person or by agent,
nominee or attorney, with or without bringing any action or proceeding, or by a
receiver appointed by a court, dispossess Borrower and its agents and servants
from the Property, without liability for trespass, damages or otherwise and
exclude Borrower and its agents or servants wholly therefrom, and take
possession of the Property and all books, records and accounts relating

                                      -3-
<PAGE>

thereto and have, hold, manage, lease and operate the Property on such terms and
for such period of time as Lender may deem proper and either with or without
taking possession of the Property in its own name, demand, sue for or otherwise
collect and receive all Rents and sums due under all Lease Guaranties, including
those past due and unpaid with full power to make from time to time all
alterations, renovations, repairs or replacements thereto or thereof as Lender
may deem proper and may apply the Rents and sums received pursuant to any Lease
Guaranties to the payment of the following in such order and proportion as
Lender in its sole discretion may determine, any law, custom or use to the
contrary notwithstanding: (a) all expenses of managing and securing the
Property, including, without being limited thereto, the salaries, fees and wages
of a managing agent and such other employees or agents as Lender may deem
necessary or desirable and all expenses of operating and maintaining the
Property, including, without being limited thereto, all taxes, charges, claims,
assessments, water charges, sewer rents and any other liens, and premiums for
all insurance which Lender may deem necessary or desirable, and the cost of all
alterations, renovations, repairs or replacements, and all expenses incident to
taking and retaining possession of the Property; and (b) the Debt, together with
all costs and reasonable attorneys' fees. In addition, upon the occurrence of an
Event of Default, Lender, at its option, may (1) complete any construction on
the Property in such manner and form as Lender deems advisable, (2) exercise all
rights and powers of Borrower, including, without limitation, the right to
negotiate, execute, cancel, enforce or modify any Leases, obtain and evict
tenants, and demand, sue for, collect and receive all Rents from the Property
and all sums due under any Lease Guaranties, (3) require Borrower to pay monthly
in advance to Lender, or any receiver appointed to collect the Rents, the fair
and reasonable rental value for the use and occupancy of such part of the
Property as may be in possession of Borrower or (4) require Borrower to vacate
and surrender possession of the Property to Lender or to such receiver and, in
default thereof, Borrower may be evicted by summary proceedings or otherwise.

        Section 3.2 OTHER REMEDIES. Nothing contained in this Assignment and no
act done or omitted by Lender pursuant to the power and rights granted to Lender
hereunder shall be deemed to be a waiver by Lender of its rights and remedies
under the Loan Agreement, the Note, or the other Loan Documents and this
Assignment is made and accepted without prejudice to any of the rights and
remedies possessed by Lender under the terms thereof. The right of Lender to
collect the Debt and to enforce any other security therefor held by it may be
exercised by Lender either prior to, simultaneously with, or subsequent to any
action taken by it hereunder. Borrower hereby absolutely, unconditionally and
irrevocably waives any and all rights to assert any setoff, counterclaim or
crossclaim of any nature whatsoever with respect to the obligations of Borrower
under this Assignment, the Loan Agreement, the Note, the other Loan Documents or
otherwise with respect to the Loan in any action or proceeding brought by Lender
to collect same, or any portion thereof, or to enforce and realize upon the lien
and security interest created by this Assignment, the Loan Agreement, the Note,
or any of the other Loan Documents (provided, however, that the foregoing shall
not be deemed a waiver of Borrower's right to assert any compulsory counterclaim
if such counterclaim is compelled under local law or rule of procedure, nor
shall the foregoing be deemed a waiver of Borrower's right to assert any claim
which would constitute a defense, setoff, counterclaim or crossclaim of any
nature whatsoever against Lender in any separate action or proceeding).

        Section 3.3 OTHER SECURITY. Lender may take or release other security
for the payment of the Debt, may release any party primarily or secondarily
liable therefor and may

                                      -4-
<PAGE>

apply any other security held by it to the reduction or satisfaction of the Debt
without prejudice to any of its rights under this Assignment.

        Section 3.4 NON-WAIVER. The exercise by Lender of the option granted it
in Section 3.1 of this Assignment and the collection of the Rents and sums due
under the Lease Guaranties and the application thereof as herein provided shall
not be considered a waiver of any default by Borrower under the Note, the Loan
Agreement, the Leases, this Assignment or the other Loan Documents. The failure
of Lender to insist upon strict performance of any term hereof shall not be
deemed to be a waiver of any term of this Assignment. Borrower shall not be
relieved of Borrower's obligations hereunder by reason of (a) the failure of
Lender to comply with any request of Borrower or any other party to take any
action to enforce any of the provisions hereof or of the Loan Agreement, the
Note or the other Loan Documents, (b) the release regardless of consideration,
of the whole or any part of the Property, or (c) any agreement or stipulation by
Lender extending the time of payment or otherwise modifying or supplementing the
terms of this Assignment, the Loan Agreement, the Note, or the other Loan
Documents. Lender may resort for the payment of the Debt to any other security
held by Lender in such order and manner as Lender, in its discretion, may elect.
Lender may take any action to recover the Debt, or any portion thereof, or to
enforce any covenant hereof without prejudice to the right of Lender thereafter
to enforce its rights under this Assignment. The rights of Lender under this
Assignment shall be separate, distinct and cumulative and none shall be given
effect to the exclusion of the others. No act of Lender shall be construed as an
election to proceed under any one provision herein to the exclusion of any other
provision.

        Section 3.5 BANKRUPTCY. (a) Upon or at any time after the occurrence of
an Event of Default, Lender shall have the right to proceed in its own name or
in the name of Borrower in respect of any claim, suit, action or proceeding
relating to the rejection of any Lease, including, without limitation, the right
to file and prosecute, to the exclusion of Borrower, any proofs of claim,
complaints, motions, applications, notices and other documents, in any case in
respect of the lessee under such Lease under the Bankruptcy Code.

        (b)     If there shall be filed by or against Borrower a petition under
the Bankruptcy Code, and Borrower, as lessor under any Lease, shall determine to
reject such Lease pursuant to Section 365(a) of the Bankruptcy Code, then
Borrower shall give Lender not less than ten (10) days' prior notice of the date
on which Borrower shall apply to the bankruptcy court for authority to reject
the Lease. Lender shall have the right, but not the obligation, to serve upon
Borrower within such ten-day period a notice stating that (i) Lender demands
that Borrower assume and assign the Lease to Lender pursuant to Section 365 of
the Bankruptcy Code and (ii) Lender covenants to cure or provide adequate
assurance of future performance under the Lease. If Lender serves upon Borrower
the notice described in the preceding sentence, Borrower shall not seek to
reject the Lease and shall comply with the demand provided for in clause (i) of
the preceding sentence within thirty (30) days after the notice shall have been
given, subject to the performance by Lender of the covenant provided for in
clause (ii) of the preceding sentence.

                                      -5-
<PAGE>

                  ARTICLE 4 - NO LIABILITY, FURTHER ASSURANCES

        Section 4.1 NO LIABILITY OF LENDER. This Assignment shall not be
construed to bind Lender to the performance of any of the covenants, conditions
or provisions contained in any Lease or Lease Guaranty or otherwise impose any
obligation upon Lender. Lender shall not be liable for any loss sustained by
Borrower resulting from Lender's failure to let the Property after an Event of
Default or from any other act or omission of Lender in managing the Property
after an Event of Default unless such loss is caused by the willful misconduct
and bad faith of Lender. Lender shall not be obligated to perform or discharge
any obligation, duty or liability under the Leases or any Lease Guaranties or
under or by reason of this Assignment and Borrower shall, and hereby agrees to,
indemnify Lender for, and to hold Lender harmless from, any and all liability,
loss or damage which may or might be incurred under the Leases, any Lease
Guaranties or under or by reason of this Assignment and from any and all claims
and demands whatsoever, including the defense of any such claims or demands
which may be asserted against Lender by reason of any alleged obligations and
undertakings on its part to perform or discharge any of the terms, covenants or
agreements contained in the Leases or any Lease Guaranties. Should Lender incur
any such liability, the amount thereof, including costs, expenses and reasonable
attorneys' fees, shall be secured by this Assignment, the Mortgage and the other
Loan Documents and Borrower shall reimburse Lender therefor immediately upon
demand and upon the failure of Borrower so to do Lender may, at its option,
declare all sums secured by this Assignment, the Mortgage and the other Loan
Documents immediately due and payable. This Assignment shall not operate to
place any obligation or liability for the control, care, management or repair of
the Property upon Lender, nor for the carrying out of any of the terms and
conditions of the Leases or any Lease Guaranties; nor shall it operate to make
Lender responsible or liable for any waste committed on the Property by the
tenants or any other parties, or for any dangerous or defective condition of the
Property including, without limitation, the presence of any Hazardous Substances
(as defined in the Mortgage), or for any negligence in the management, upkeep,
repair or control of the Property resulting in loss or injury or death to any
tenant, licensee, employee or stranger.

        Section 4.2 NO MORTGAGEE IN POSSESSION. Nothing herein contained shall
be construed as constituting Lender a "mortgagee in possession" in the absence
of the taking of actual possession of the Property by Lender. In the exercise of
the powers herein granted Lender, no liability shall be asserted or enforced
against Lender, all such liability being expressly waived and released by
Borrower.

        (a)     FURTHER ASSURANCES. Borrower will, at the cost of Borrower, and
without expense to Lender, do, execute, acknowledge and deliver all and every
such further acts, conveyances, assignments, notices of assignments, transfers
and assurances as Lender shall, from time to time, require for the better
assuring, conveying, assigning, transferring and confirming unto Lender the
property and rights hereby assigned or intended now or hereafter so to be, or
which Borrower may be or may hereafter become bound to convey or assign to
Lender, or for carrying out the intention or facilitating the performance of the
terms of this Assignment or for filing, registering or recording this Assignment
and, on demand, will execute and deliver and hereby authorizes Lender to execute
in the name of Borrower to the extent Lender may lawfully do so, one or more
financing statements, chattel mortgages or comparable security instruments, to
evidence more effectively the lien and security interest hereof in and upon the
Leases.

                                      -6-
<PAGE>

                      ARTICLE 5 - MISCELLANEOUS PROVISIONS

        Section 5.1 CONFLICT OF TERMS. In case of any conflict between the terms
of this Assignment and the terms of the Loan Agreement, the terms of the Loan
Agreement shall prevail.

        Section 5.2 NO ORAL CHANGE. This Assignment and any provisions hereof
may not be modified, amended, waived, extended, changed, discharged or
terminated orally, or by any act or failure to act on the part of Borrower or
Lender, but only by an agreement in writing signed by the party against whom the
enforcement of any modification, amendment, waiver, extension, change, discharge
or termination is sought.

        Section 5.3 GENERAL DEFINITIONS. All capitalized terms not defined
herein shall have the respective meanings set forth in the Loan Agreement.
Unless the context clearly indicates a contrary intent or unless otherwise
specifically provided herein, words used in this Assignment may be used
interchangeably in singular or plural form and the word "Borrower" shall mean
"each Borrower and any subsequent owner or owners of the Property or any part
thereof or interest therein," the word "Lender" shall mean "Lender and any
subsequent holder of the Note", the word "Note" shall mean "the Note and any
other evidence of indebtedness secured by the Loan Agreement", the word
"Property" shall include any portion of the Property and any interest therein,
the phrases "attorneys' fees," "legal fees" and "counsel fees" shall include any
and all attorney's, paralegal and law clerk fees and disbursements, including,
but not limited to, fees and disbursements at the pre-trial, trial and appellate
levels incurred or paid by Lender in protecting its interest in the Property,
the Leases and the Rents and enforcing its rights hereunder; whenever the
context may require, any pronouns used herein shall include the corresponding
masculine, feminine or neuter forms, and the singular form of nouns and pronouns
shall include the plural and vice versa.

        Section 5.4 INAPPLICABLE PROVISIONS. If any term, covenant or condition
of this Assignment is held to be invalid, illegal or unenforceable in any
respect, this Assignment shall be construed without such provision.

        Section 5.5 GOVERNING LAW. This Assignment shall be governed in
accordance with the terms and provisions of Section 10.3 of the Loan Agreement.

        Section 5.6 TERMINATION OF ASSIGNMENT. Upon payment in full of the Debt,
this Assignment shall become and be void and of no effect.

        Section 5.7 NOTICES. All notices or other written communications
hereunder shall be delivered in accordance with Section 10.6 of the Loan
Agreement.

        Section 5.8 WAIVER OF TRIAL BY JURY. BORROWER HEREBY WAIVES, TO THE
FULLEST EXTENT PERMITTED BY LAW, THE RIGHT TO TRIAL BY JURY IN ANY ACTION,
PROCEEDING OR COUNTERCLAIM, WHETHER IN CONTRACT, TORT OR OTHERWISE, RELATING
DIRECTLY OR INDIRECTLY TO THIS ASSIGNMENT, THE NOTE, OR THE OTHER LOAN DOCUMENTS
OR ANY ACTS OR OMISSIONS OF LENDER, ITS OFFICERS, EMPLOYEES, DIRECTORS OR AGENTS
IN CONNECTION THEREWITH.

                                      -7-
<PAGE>

        Section 5.9 EXCULPATION. The provisions of Section 9.4 of the Loan
Agreement are hereby incorporated by reference into this Assignment to the same
extent and with the same force as if fully set forth herein.

        Section 5.10 SUCCESSORS AND ASSIGNS. This Assignment shall be binding
upon and inure to the benefit of Borrower and Lender and their respective
successors and assigns forever.

        Section 5.11 HEADINGS, ETC. The headings and captions of various
paragraphs of this Assignment are for convenience of reference only and are not
to be construed as defining or limiting, in any way, the scope or intent of the
provisions hereof.

                     ARTICLE 6 - STATE-SPECIFIC PROVISIONS

        Section 6.1 PRINCIPLES OF CONSTRUCTION. In the event of any
inconsistencies between the other terms and conditions of this Assignment and
this Article 6, the terms and conditions of this Article 6 shall control and be
binding.

        Section 6.2 ADDITIONAL TERM OF ASSIGNMENT. The following shall be
inserted at the end of Article 2:

        "Section 2.4 SPECIAL TEXAS PROVISIONS. The assignments set forth herein
are not intended to constitute payment to Lender unless Borrower's license to
collect Rents is terminated, and then only to the extent that the Rents are
actually received by Lender (as opposed to constituting a portion of the
voluntary payments of principal and interest on the Note) and are not used for
the operation or maintenance of the Property or for the payment of costs and
expenses in connection therewith, taxes, assessments, water charges, sewer
rents, and other charges levied, assessed or imposed against the Property,
insurance premiums, costs and expenses with respect to any litigation affecting
the Property, the leases, the concessions, and the rent, any wages and salaries
of employees, commissions of agents and reasonable attorneys' fees, all in
accordance with the terms of the Loan Documents. It is further the intent of
Borrower and Lender that the Rents hereby absolutely assigned are no longer,
during the term of this Assignment, property of Borrower or property of any
estate of Borrower as defined in 11 U.S.C. ss. 541 and shall not constitute
collateral, cash or otherwise, of Borrower. The term "Rents" as used herein
shall mean the gross rents without deduction or offsets of any kind."



                                      -8-
<PAGE>

        IN WITNESS WHEREOF, Borrower has executed this instrument the day and
year first above written.

                                       BORROWER:
                                       BEHRINGER HARVARD TRAVIS TOWER S LP,
                                       a Delaware limited partnership

                                       By: Behringer Harvard Travis Tower S GP,
                                           LLC, a Delaware limited liability
                                           company, its general partner


                                           By:__________________________________
                                              Gerald J. Reihsen, III, Secretary


                                       BEHRINGER HARVARD TRAVIS TOWER H LP, a
                                       Delaware limited partnership

                                       By: Behringer Harvard Travis Tower H GP,
                                           LLC, a Delaware limited liability
                                           company, its general partner


                                           By:__________________________________
                                              Gerald J. Reihsen, III, Secretary

<PAGE>

                                ACKNOWLEDGEMENTS

STATE OF TEXAS          )
                        )
COUNTY OF ____________  )

The foregoing instrument was acknowledged before me on the ____ day of
__________, 2004, by Gerald J. Reihsen, III, a Secretary of Behringer Harvard
Travis Tower H GP, LLC, a Delaware limited liability company (the "GP"), which
GP is the general partner of Behringer Harvard Travis Tower H LP, a Delaware
limited partnership (the "PROPERTY PARTNERSHIP"); and said person acknowledged
said instrument to be his/her free act and deed and the free act and deed of
said GP, in its capacity as the general partner of said Property Partnership.


                                        ______________________________________
                                        Notary Public in and for the
                                        State of Texas
                                        My Commission Expires: _______________


STATE OF TEXAS          )
                        )
COUNTY OF ____________  )

The foregoing instrument was acknowledged before me on the ____ day of
__________, 2004, by Gerald J. Reihsen, III, a Secretary of Behringer Harvard
Travis Tower S GP, LLC, a Delaware limited liability company (the "GP"), which
GP is the general partner of Behringer Harvard Travis Tower S LP, a Delaware
limited partnership (the "PROPERTY PARTNERSHIP"); and said person acknowledged
said instrument to be his/her free act and deed and the free act and deed of
said GP, in its capacity as the general partner of said Property Partnership.


                                        ______________________________________
                                        Notary Public in and for the
                                        State of Texas
                                        My Commission Expires: _______________

<PAGE>

                                    EXHIBIT A

                                LEGAL DESCRIPTION
















                                      A-1