37

                                                                    Exhibit 99.2

        FIRST    AMENDMENT TO THIRD  AMENDED AND  RESTATED  AGREEMENT OF LIMITED
                 PARTNERSHIP OF CAMDEN OPERATING, L.P.

     THIS FIRST  AMENDMENT TO THIRD  AMENDED AND  RESTATED  AGREEMENT OF LIMITED
PARTNERSHIP OF CAMDEN OPERATING,  L.P. (this  "AMENDMENT") is entered into as of
the 23rd day of February, 1999, by and between CPT-GP, Inc. ("GENERAL PARTNER"),
a  Delaware  corporation  and a wholly  owned  subsidiary  of Camden  USA,  Inc.
("CAMDEN  USA"),  a Delaware  corporation,  a wholly owned  subsidiary of Camden
Property  Trust  ("CPT"or the  "GENERAL  PARTNER  ENTITY"),  a Texas real estate
investment trust, as the general partner of Camden  Operating,  L.P., a Delaware
limited partnership (the "PARTNERSHIP"), Belcrest Realty Corporation, a Delaware
corporation  ("BELCREST")  and  Belair  Real  Estate  Corporation,   a  Delaware
corporation  ("BELAIR";  each of  Belcrest  and  Belair a  "SERIES  B  PREFERRED
PARTNER" and collectively, the "SERIES B PREFERRED PARTNERS").

                              W I T N E S S E T H:

     WHEREAS,  the signatories hereto desire to amend that certain Third Amended
and Restated Agreement of Limited  Partnership of Camden Operating,  L.P., dated
as of  April  15,  1997  (the  "AGREEMENT")  as  set  forth  herein;  any  terms
capitalized  herein but not defined herein having the  definitions  therefor set
forth in the Agreement.


     NOW, THEREFORE,  in consideration of the foregoing,  of the mutual promises
set forth herein, and of other good and valuable consideration,  the receipt and
sufficiency of which are hereby acknowledged,  the parties hereto,  intending to
be legally bound,  agree to continue the  Partnership and amend the Agreement as
follows:

     1. As of the date  hereof  (a) Belair has  contributed  $57,000,000  to the
Partnership  in  exchange  for the  issuance  to  Belair of  2,280,000  Series B
Preferred  Units (as  defined  in the  Agreement,  as  amended  hereby)  and (b)
Belcrest has  contributed  $43,000,000  to the  Partnership  in exchange for the
issuance  to  Belcrest  of  1,720,000  Series B  Preferred  Units.  The Series B
Preferred Units issued to the Series B Preferred  Partners have been duly issued
and fully  paid.  The Series B  Preferred  Partners  are hereby  admitted to the
Partnership,  effective as of February 23, 1999, as Additional  Limited Partners
(the information set forth on EXHIBIT A attached hereto relating to the interest
of the Series B Preferred  Partners  in the  Partnership  is hereby  included in
Exhibit A to the  Agreement),  and by execution of this  Amendment  the Series B
Preferred Partners have agreed to be bound by all of the terms and conditions of
the Agreement, as amended hereby.

     2. DEFINITIONS.

    38

     A. The words "Series B Preferred Units" are inserted after the word "Units"
in the beginning of the third line of the  definition of  "Partnership  Unit" in
Article I of the Agreement.

     B. The following new definitions are inserted in Article I of the Agreement
so as to preserve alphabetical order:

     "DECLARATION OF TRUST" shall have the meaning set forth therefor in Section
16.3.C hereof.

     "EXCESS  UNITS" shall have the meaning set forth therefor in Section 16.9.A
hereof.

     "INDEBTEDNESS"  means,  with  respect  to any  person  or  entity:  (i) all
indebtedness,  obligations or other  liabilities of such person or entity or for
borrowed money (including indebtedness, obligations and liabilities owing to any
affiliate of such person or entity); (ii) all indebtedness, obligations or other
liabilities  of such person or entity  evidenced by  securities or other similar
instruments,  including,  without  limitation,  any  obligation,  contingent  or
otherwise,  to purchase or repurchase  securities or similar instruments at some
future time; (iii) all  reimbursement  obligations and other liabilities of such
person or entity  with  respect  to letters  of  credit,  banker's  acceptances,
financial  guaranties and other similar financing  arrangements  issued for such
person's or entity's  account;  (iv) all obligations of such person or entity to
pay the deferred  purchase price of property or services;  (v) all indebtedness,
obligations or other liabilities of such person or entity or others secured by a
lien on any asset of such  person or entity,  whether or not such  indebtedness,
obligations or liabilities are assumed by, or are a personal  liability of, such
person or entity;  (vi) all  indebtedness,  obligations or other  liabilities of
such  person  or  entity  (including  contingent  liabilities  for the  costs of
premature termination calculated as though such termination occurred on the date
of  determination)  in respect of interest rate hedging  agreements  and foreign
currency  exchange  agreements of which such person or entity is a party;  (vii)
all  indebtedness,  obligations  and  other  liabilities  of any  unconsolidated
subsidiary in which such person or entity is a general partner or for which such
person or entity is primarily or secondarily  liable,  all without regard to any
contribution, reimbursement or indemnity rights of such person or entity; (viii)
the applicable percentage of nonrecourse indebtedness owed by any unconsolidated
subsidiary of such person or entity;  and (ix) all  indebtedness  obligations or
other  liabilities  of such  person or entity  in  connection  with the sale and
leaseback of any property of such person or entity.

     "JUNIOR  UNITS" shall have the meaning set forth therefor in Section 16.3.C
hereof.

     "NET  ASSET  VALUE"  means,  with  respect  to any  fiscal  quarter  of the
Partnership,  (A) the product of (1) the Net  Operating  Income for such quarter
(as determined based upon the financial  information of the Partnership provided
by  the  Partnership  pursuant  to  Section  4(f)  of  the  Series  B  Preferred
Contribution  Agreement)  multiplied  by  four  and  (2)  eleven,  less  (B) all
Indebtedness of the Partnership.

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     "NET  OPERATING  INCOME"  means,  with respect to any fiscal quarter of the
Partnership,   all  cash  received  by  the  Partnership  from  whatever  source
(excluding   the  proceeds  of  any  Capital   Contributions   and  any  capital
transactions (e.g.,  refinancings,  sales of assets,  casualty or condemnation))
less the  aggregate of the  following:  (i) all interest  payments in respect of
Partnership  Indebtedness made during such quarter by the Partnership;  and (ii)
all operating expenses made by the Partnership during such quarter.

     "PARITY  PREFERRED  UNITS"  shall have the  meaning  set forth  therefor in
Section 16.1 hereof.

     "PTP" shall have the meaning set forth therefor in Section 16.1 hereof.

     "SERIES B EXCHANGE  NOTICE"  shall have the meaning  set forth  therefor in
Section 16.9.B hereof.

     "SERIES B EXCHANGE  PRICE"  shall have the  meaning  set forth  therefor in
Section 16.9.A hereof.

     "SERIES B PREFERRED CONTRIBUTION AGREEMENT" means that certain Contribution
Agreement,  dated  as of  February  23,  1999,  by and  among,  Belcrest  Realty
Corporation, Belair Real Estate Corporation, CPT and Partnership.

     "SERIES B PREFERRED  PARTNERS" means Belcrest Realty Corporation and Belair
Real Estate Corporation, and their respective successors and assigns.

     "SERIES B PREFERRED  SHARES"  shall have the meaning set forth  therefor in
Section 16.9.A hereof.

     "SERIES B PREFERRED UNIT DISTRIBUTION  PAYMENT DATE" shall have the meaning
set forth therefor in Section 16.3.A hereof.

     "SERIES B PREFERRED  UNIT  PARTNERSHIP  RECORD DATE" shall have the meaning
set forth therefor in Section 16.3.A hereof.

     "SERIES B PREFERRED  UNITS"  shall have the  meaning set forth  therefor in
Section 16.2 hereof.

     "SERIES B PRIORITY  RETURN"  shall have the meaning  set forth  therefor in
Section 16.1 hereof.

     "SERIES B REDEMPTION  PRICE"  shall have the meaning set forth  therefor in
SECTION 16.6 hereof.


    40

     3. SECTION  4.2.D.  Section  4.2.D of the Agreement is amended by inserting
the word  "three" in lieu of the word "two" in the second line  thereof,  and by
inserting  the words "and Series B Preferred  Units"  after the words  "`Class B
Units'" at the end of the first sentence thereof.

     4. SECTION 8.4.  Nothing  contained in Section 8.4 of the  Agreement  shall
modify  or  limit  in any  way  any  of the  provisions  of  Article  XVI of the
Agreement.

     5. SECTION 8.6. The provisions of Section 8.6 of the Agreement shall not be
applicable to the Series B Preferred Units.

     6.  TRANSFERS.  Section 11.1.A of the Agreement is amended by inserting the
words "or an exchange  pursuant to Section 16.9 hereof" after the words "Section
8.6" in the last line  thereof.  Section  11.3.A of the  Agreement is amended by
inserting  the words "or an exchange  pursuant to Section 16.9 hereof" after the
words  "Section  8.6" in the  second  line  thereof.  Section  11.3.A is further
modified to include the  following  sentence  after the last  sentence  thereof:
"Notwithstanding anything in this Section 11.3 (but not including 11.3.C) to the
contrary, the General Partner shall not unreasonably withhold its consent to any
Transfer of any Series B Preferred  Units,  provided the  provisions of Sections
11.3.B,  11.3.D.  11.3.E, 11.3.F, 11.4.B and 11.6 hereof are satisfied." Section
11.3.C of the Agreement is amended by adding the following new clause (ix) after
clause  (viii)  thereof:  "and (ix)  notwithstanding  any clause of this Section
11.3.C to the  contrary,  in the case of any Series B Preferred  Partner,  to an
Affiliate of such Series B Preferred Partner,  provided such transfer is made in
accordance with Sections 11.3.D, 11.3.E, 11.3.F and 11.4.B of the Agreement (for
the sake of this clause  (ix) and Section  11.6.C (as it relates to the Series B
Preferred Units) only, the word "Affiliate" shall mean, in respect to any person
or  entity,  any other  person or entity  directly  or  indirectly  controlling,
controlled  by or under common  control of such person or entity  whether or not
such control  shall include a controlling  ownership  interest)."  The following
sentence is inserted after the last sentence of Section 11.4.A of the Agreement:
"Notwithstanding  anything in Section 11.4 hereof to the  contrary,  the General
Partner  shall not  unreasonably  withhold  its  consent to the  admission  of a
transferee of Series B Preferred  Units as a Limited  Partner,  in respect of an
exchange of Series B Preferred  Units to a permitted  transferee  under  Section
11.3.C hereof,  provided that the effect of such admission would not be to cause
the  Partnership  to have  more than 500  Partners  or to be a  publicly  traded
partnership  within  the  meaning  of  Section  7704 of the  Code,  and any such
transferee  shall,  upon  satisfaction  of all of the  conditions  set  forth in
Sections 11.3.B,  11.3.D.  11.3.E, 11.3.F, 11.4.B and 11.6 hereof be admitted to
the Partnership as a Substituted Limited Partner hereunder." Sections 11.6.A and
11.6.B of the Agreement  each are amended by inserting the words "or an exchange
pursuant to Section 16.9 hereof"  after the words  "Section  8.6"  therein.  The
following language is inserted at the end of Section 11.6.C of the Agreement: ";
PROVIDED, HOWEVER, that a Series B Preferred Partner may make a Transfer to an

    41

Affiliate of such Series B Preferred  Partner in accordance  with the provisions
of Section 11.3.C hereof without regard to such  limitation."  The last sentence
of  Section  11.6.D is  hereby  modified  by  inserting  the words "or  Series B
Preferred  Unit  Partnership   Date,  as  the  case  may  be"  after  the  words
"Partnership Record Date".

     7. SECTION 12.2.B.  The last sentence of Section 12.2.B shall not be deemed
applicable to distributions in respect of the Series B Preferred Shares.

     8. SECTION 13.2. Section 13.2 of the Agreement is amended as follows:

     (a) The word  "adjustments"  is inserted in Section  13.2.A(3)  between the
words "distributions," and "allocations."

     (b) The following sentence is added at the end of Section 13.2.A: "Prior to
the foregoing distributions,  the General Partner shall have made adjustments to
Capital  Accounts  of the  Partners  to  reflect  the fair  market  value of the
Partnership  assets as of the date of the Partnership's  liquidation in a manner
consistent with Regulations Section 1.704-1(b)(2)(iv)(f)."

     9. ARTICLE XVI. The  following new Article XVI is inserted in the Agreement
after Article XV thereof:

                                  "ARTICLE XVI
                               SERIES B CUMULATIVE
                      REDEEMABLE PERPETUAL PREFERRED UNITS

SECTION 16.1  DEFINITIONS

     The term  "PARITY  PREFERRED  UNITS" shall be used to refer to any class or
series  of  Partnership  Interests  now  or  hereafter  authorized,   issued  or
outstanding  expressly  designated by the  Partnership  to rank on a parity with
Series B Preferred Units with respect to distributions and rights upon voluntary
or involuntary  liquidation,  winding-up or dissolution of the Partnership.  The
term "SERIES B PRIORITY  RETURN" shall mean, an amount equal to 8.50% per annum,
determined  on the basis of a 360 day year of twelve 30 day  months  (or  actual
days for any month which is shorter than a full monthly  period),  cumulative to
the extent not distributed for any given distribution period pursuant to Section
5.1 hereof,  of the stated value of $25 per Series B Preferred Unit,  commencing
on the date of issuance of such  Series B Preferred  Unit.  The term "PTP" shall
mean a "publicly traded  partnership"  within the meaning of Section 7704 of the
Code.

SECTION 16.2  DESIGNATION AND NUMBER

     A series of Partnership  Units in the  Partnership  designated as the "8.5%
Series B  Cumulative  Redeemable  Perpetual  Preferred  Units"  (the  "SERIES  B
PREFERRED UNITS") is hereby established.  The number of Series B Preferred Units
shall be 4,000,000.

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SECTION 16.3  DISTRIBUTIONS

     A.  PAYMENT  OF  DISTRIBUTIONS.  Subject to the rights of holders of Parity
Preferred  Units as to the payment of  distributions,  pursuant to Sections 5.1,
5.3 and 13.2  hereof,  holders of Series B Preferred  Units shall be entitled to
receive,  when, as and if declared by the Partnership acting through the General
Partner,  out of Available Cash,  cumulative  preferential cash distributions at
the rate per annum of 8.5% of the  original  Capital  Contribution  per Series B
Preferred Unit. With respect to the Holders of the Series B Preferred Units, the
original  Capital  Contribution  per  Series  B  Preferred  Unit  is  $25.  Such
distributions  shall be  cumulative,  shall  accrue  from the  original  date of
issuance and will be payable (i) quarterly (such quarterly  periods for purposes
of  payment  and  accrual  will be the  quarterly  periods  ending  on the dates
specified in this sentence and not calendar year quarters) in arrears, not later
than the third  calendar day after March 31, June 30,  September 30 and December
31 of each year  commencing  on March 31, 1999 and,  (ii) in the event of (a) an
exchange of Series B Preferred  Units into Series B Preferred  Shares,  or (b) a
redemption of Series B Preferred Units, on the exchange date or redemption date,
as applicable (each a "SERIES B PREFERRED UNIT DISTRIBUTION  PAYMENT DATE"). The
amount of the distribution  payable for any period will be computed on the basis
of a 360-day year of twelve 30-day months and for any period shorter than a full
quarterly  period  for  which  distributions  are  computed,  the  amount of the
distribution  payable will be computed on the basis of the actual number of days
elapsed in such a 30-day  month.  If any date on which  distributions  are to be
made on the Series B Preferred  Units is not a Business Day, then payment of the
distribution  to be made on such  date will be made on the next  succeeding  day
that is a Business Day (and without any interest or other  payment in respect of
any such delay)  except that,  if such  Business  Day is in the next  succeeding
calendar year, such payment shall be made on the immediately  preceding Business
Day,  in each case  with the same  force  and  effect  as if made on such  date.
Distributions  on the Series B  Preferred  Units will be made to the  holders of
record of the Series B Preferred  Units on the relevant record dates to be fixed
by the Partnership acting through the General Partner,  which record dates shall
in no event exceed  fifteen (15)  Business  Days prior to the relevant  Series B
Preferred  Unit  Distribution   Payment  Date  (the  "SERIES  B  PREFERRED  UNIT
PARTNERSHIP RECORD DATE").

     B. DISTRIBUTIONS CUMULATIVE.  Distributions on the Series B Preferred Units
will accrue  whether or not the terms and  provisions  of any  agreement  of the
Partnership,  including any agreement  relating to its  indebtedness at any time
prohibit the current  payment of  distributions,  whether or not the Partnership
has earnings,  whether or not there are funds legally  available for the payment
of such  of  such  distributions  and  whether  or not  such  distributions  are
authorized.  Accrued but unpaid  distributions  on the Series B Preferred  Units
will accumulate as of the Series B Preferred Unit  Distribution  Payment Date on
which they first become payable. Distributions on account of arrears for any

    43

past  distribution  periods  may be  declared  and  paid  at any  time,  without
reference  to a regular  Series B Preferred  Unit  Distribution  Payment Date to
holders of record of the Series B  Preferred  Units on the record  date fixed by
the  Partnership  acting through the General Partner which date shall not exceed
fifteen (15)  Business Days prior to the payment  date.  Accumulated  and unpaid
distributions will not bear interest.

     C.  PRIORITY  AS TO  DISTRIBUTIONS.  (i) So long as any Series B  Preferred
Units  are  outstanding,  no  distribution  of cash or other  property  shall be
authorized,  declared,  paid or set apart for payment on or with  respect to any
class or series of  Partnership  Interest  ranking  junior as to the  payment of
distributions or rights upon a voluntary or involuntary liquidation, dissolution
or winding-up of the Partnership to the Series B Preferred Units  (collectively,
"JUNIOR  UNITS"),  nor  shall  any cash or other  property  be set  aside for or
applied to the purchase,  redemption or other  acquisition for  consideration of
any Series B Preferred  Units,  any Parity  Preferred Units or any Junior Units,
unless,  in each case, all  distributions  accumulated on all Series B Preferred
Units and all classes and series of outstanding Parity Preferred Units have been
paid in full. The foregoing sentence will not prohibit (a) distributions payable
solely in Junior Units or, in accordance with Section 8.6 hereof,  common shares
of beneficial  interest (or any similar equity  security) of the General Partner
Entity, (b) the conversion of Junior Units or Parity Preferred Units into Junior
Units or common shares of beneficial  interest (or any similar equity  security)
of the General Partner Entity,  and (c) the redemption of Partnership  Interests
corresponding  to any Series B  Preferred  Shares,  Parity  Preferred  Shares or
Junior  Shares  (as  those  terms  are  defined  in that  certain  Statement  of
Designation  of Series B Cumulative  Redeemable  Perpetual  Preferred  Shares of
Beneficial  Interest of the General  Partner Entity (the "SERIES B DESIGNATION")
establishing  the Series B  Preferred  Shares  (as  hereinafter  defined)  to be
purchased  by the General  Partner  Entity  pursuant to Article  Nineteen of the
Declaration of Trust.

     (ii)  So  long as  distributions  have  not  been  paid  in full  (or a sum
sufficient  for such full  payment  is not  irrevocably  deposited  in trust for
payment) upon the Series B Preferred  Units,  all  distributions  authorized and
declared  on the  Series  B  Preferred  Units  and  all  classes  or  series  of
outstanding  Parity Preferred Units shall be authorized and declared so that the
amount of distributions  authorized and declared per Series B Preferred Unit and
such other classes or series of Parity  Preferred  Units shall in all cases bear
to each other the same ratio that accrued  distributions  per Series B Preferred
Unit and such other classes or series of Parity Preferred Units (which shall not
include  any  accumulation  in  respect  of  unpaid   distributions   for  prior
distribution  periods if such class or series of Parity  Preferred  Units do not
have cumulative distribution rights) bear to each other.

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     D. NO FURTHER  RIGHTS.  Holders of Series B  Preferred  Units  shall not be
entitled  to any  distributions,  whether  payable in cash,  other  property  or
otherwise, in excess of the full cumulative distributions described herein.

SECTION 16.4  ALLOCATIONS

     Sections  6.1.A and 6.1.B of the Agreement are hereby  deleted and replaced
by the following:

     A. NET INCOME.  After giving effect to the special allocations set forth in
Section 1 of EXHIBIT C and Section 6.2 below, Net Income shall be allocated:

     (i)  first, to the General Partner to the extent that Net Losses previously
          allocated to the General Partner pursuant to Section  6.1.B(iii) below
          for all prior taxable years exceed Net Income previously  allocated to
          the General  Partner  pursuant to this Section  6.1.A(i) for all prior
          taxable years,

     (ii) second,  to holders of Partnership  Interests that are entitled to any
          preference in  distribution  to the extent that Net Losses  previously
          allocated to such holders pursuant to Section  6.1.B(ii) below for all
          prior  taxable  years exceed Net Income  previously  allocated to such
          holders  pursuant  to this  Section  6.1.A(ii)  for all prior  taxable
          years, (iii) third, to holders of Partnership Interests of a class not
          entitled to preference in  distribution  to the extent that Net Losses
          previously  allocated  to such  holders  pursuant to Section  6.1.B(i)
          below  for all  prior  taxable  years  exceed  Net  Income  previously
          allocated to such holders pursuant to this Section  6.1.A(iii) for all
          prior taxable years,

     (iv) fourth, to the holders of any Partnership  Interests that are entitled
          to any preference in distribution in accordance with the rights of any
          such class of  Partnership  Interests  (including  Series B  Preferred
          Units) until each such  Partnership  Interest has been allocated,  Net
          Income equal to the EXCESS OF (x) the  cumulative  amount of preferred
          distributions  such holders are entitled to receive (Series B Priority
          Return,  in the case of Series B  Preferred  Units) to the last day of
          the current  taxable year or to the date of redemption,  to the extent
          such Partnership Interests are redeemed during such taxable year, OVER
          (y) the cumulative Net Income  allocated to such holders,  pursuant to
          this Section 6.1.A(iv) for all prior taxable years,  (and, within such
          class,  pro rata in proportion to the respective  number of such Units
          each  Holder  holds as of the last day of the  period  for which  such
          allocation is being made), and

     (v)  fifth, with respect to Partnership  Interests that are not entitled to
          any preference in the allocation of Net Income,  pro rata to each such
          class in  accordance  with the terms of such class  (and,  within such
          class, pro rata in proportion to the respective  Percentage  Interests
          as of the last day of the period for which  such  allocation  is being
          made).

          B. NET LOSSES.  After  giving  effect to the special  allocations  set
     forth in  Section 1 of  EXHIBIT C and  Section  6.2,  Net  Losses  shall be
     allocated:

    45

     (i)  first,  with respect to classes of Partnership  Interests that are not
          entitled to any  preference  in  distribution  (including  the General
          Partner Interest),  pro rata to each such class in accordance with the
          terms of such class (and, within such class, pro rata in proportion to
          the respective  Percentage  Interests as of the last day of the period
          for which such  allocation  is being made) until the Adjusted  Capital
          Account  (ignoring for this purpose any amounts a Partner is obligated
          to contribute to the capital of the Partnership or is deemed obligated
          to contribute pursuant to Regulations Section 1.704-1(b)(2)(ii)(c)(2))
          of each Partner in such classes is reduced to zero,

     (ii) second, to the holders of any Partnership  Interests that are entitled
          to any preference in distribution (including Series B Preferred Units)
          in  accordance  with  the  rights  of any such  class  of  Partnership
          Interests  (and,  if there is more than one class of such  Partnership
          Interests,   then  in  the  reverse  order  of  their   preference  in
          distribution),  until the Adjusted  Capital  Account  (modified in the
          same  manner as in clause (i)) of each such holder is reduced to zero,
          and

     (iii) third, to the General Partner.

     To the extent permitted under Section 704 of the Code,  solely for purposes
of allocating Net Income or Net Losses in any taxable year(or a portion thereof)
to the holders of Series B Preferred Units pursuant to Section 6.1 hereof, items
of Net Income or Net Losses, as the case may be, shall not include  Depreciation
with respect to properties  that are "ceiling  limited" in respect of holders of
Series B Preferred  Units. For purposes of the preceding  sentence,  Partnership
property shall be considered  "ceiling limited" in respect of a holder of Series
B Preferred Units if  Depreciation  attributable  to such  Partnership  property
which would  otherwise  be  allocable  to such  holder,  without  regard to this
paragraph,  exceeds  depreciation  determined  for federal  income tax  purposes
attributable to such Partnership  property which would otherwise be allocable to
such holder by more than 5%.

SECTION 16.5      LIQUIDATION PROCEEDS

     A.  DISTRIBUTIONS  UPON  CERTAIN  EVENTS.  Upon  voluntary  or  involuntary
liquidation, dissolution or winding-up of the Partnership,  distributions on the
Series B Preferred  Units shall be made in accordance  with Section 13.2 hereof;
PROVIDED, HOWEVER, that upon any such liquidation,  dissolution or winding-up of
the Partnership,  the Liquidator may elect, in its sole discretion, to cause the
Partnership or the General  Partner Entity to issue to the holders of the Series
B Preferred Units such number of Series B Preferred  Shares as such holder would
have  received had they  exercised  their  Exchange  Rights in  accordance  with
Section  16.9 hereof (it being  assumed for  purposes  hereof that such  holders
would then be  entitled to exercise  such  Exchange  Rights) in lieu of the cash
otherwise  distributable to the Series B Preferred  Partners pursuant to Section
13.2 hereof.

     B. NOTICE. Written notice of any such voluntary or involuntary liquidation,
dissolution or winding-up of the Partnership,  stating the payment date or dates
when,  and  the  place  or  places  where,  the  amounts  distributable  in such
circumstances  shall  be  payable,  shall  be given by (i) fax and (ii) by first
class mail, postage pre-paid, not less than thirty (30) and not more than sixty

    46

(60) days prior to the payment date stated therein, to each record holder of the
Series B Preferred Units at the respective addresses of such holders as the same
shall appear on the transfer records of the Partnership.

     C. NO FURTHER  RIGHTS.  After payment of the full amount of the liquidating
distributions  to which they are entitled  (whether in  accordance  with Section
13.2  hereof,  or by delivery of Series B Preferred  Shares in  accordance  with
Section  16.5.A  hereof or both),  the holders of Series B Preferred  Units will
have no right or claim to any of the remaining assets of the Partnership.

     D. CONSOLIDATION, MERGER OR CERTAIN OTHER TRANSACTIONS. The voluntary sale,
conveyance,  lease, exchange or transfer (for cash, shares of stock,  securities
or other consideration) of all or substantially all of the property or assets of
the  General  Partner  to, or the  consolidation  or  merger  or other  business
combination  of  the  Partnership   with  or  into,  any   corporation,   trust,
partnership,  limited  liability company or other entity (or of any corporation,
trust,  partnership,  limited liability company or other entity with or into the
Partnership)  shall not be deemed to constitute a  liquidation,  dissolution  or
winding-up of the Partnership.

SECTION 16.6  OPTIONAL REDEMPTION

     A. RIGHT OF OPTIONAL  REDEMPTION.  The Series B Preferred  Units may not be
redeemed prior to the fifth (5th)  anniversary of the issuance date. On or after
such date, the Partnership shall have the right to redeem the Series B Preferred
Units, in whole or in part, at any time or from time to time, upon not less than
30 nor more than 60 days'  written  notice,  at a redemption  price,  payable in
cash,  equal to the Capital  Account balance of the holder of Series A Preferred
Units (the "SERIES B  REDEMPTION  PRICE") or, if greater,  the original  Capital
Contribution of such holder plus the current Series B Priority  Return,  whether
or not declared to the relevant date, to the extent not previously  distributed;
PROVIDED,  HOWEVER,  that no  redemption  pursuant to this  Section 16.6 will be
permitted if the Series B Redemption Price does not equal or exceed the original
Capital  Contribution  of such  holder  plus the  cumulative  Series B  Priority
Return, whether or not declared, to the redemption date to the extent not

    47

previously distributed.  If fewer than all of the outstanding Series B Preferred
Units are to be redeemed,  the Series B Preferred  Units to be redeemed shall be
selected pro rata (as nearly as practicable without creating fractional units).

     B. LIMITATION ON REDEMPTION.  The Partnership may not redeem fewer than all
of the  outstanding  Series B Preferred  Units unless all accumulated and unpaid
distributions  have been paid on all Series B Preferred  Units for all quarterly
distribution periods terminating on or prior to the date of redemption.

     C. PROCEDURES FOR  REDEMPTION.  (i) Notice of redemption will be (a) faxed,
and (b) mailed by the Partnership,  by certified mail, postage prepaid, not less
than 30 nor more than 60 days prior to the  redemption  date,  addressed  to the
respective holders of record of the Series B Preferred Units at their respective
addresses as they appear on the records of the  Partnership.  No failure to give
or defect in such notice shall affect the  validity of the  proceedings  for the
redemption of any Series B Preferred  Units except as to the holder to whom such
notice was defective or not given.  In addition to any  information  required by
law, each such notice shall state:  (m) the  redemption  date,  (n) the Series B
Redemption  Price,  (o) the aggregate  number of Series B Preferred  Units to be
redeemed and if fewer than all of the  outstanding  Series B Preferred Units are
to be redeemed,  the number of Series B Preferred  Units to be redeemed  held by
such holder, which number shall equal such holder's pro rata share (based on the
percentage of the aggregate  number of outstanding  Series B Preferred Units the
total number of Series B Preferred Units held by such holder  represents) of the
aggregate  number of Series B Preferred  Units to be redeemed,  (p) the place or
places where such Series B Preferred  Units are to be surrendered for payment of
the Series B Redemption Price, (q) that  distributions on the Series B Preferred
Units to be redeemed will cease to accumulate  on such  redemption  date and (r)
that payment of the Series B Redemption Price will be made upon presentation and
surrender  of such Series B Preferred  Units and  execution  and delivery by the
holder of Series B Preferred  Units of an  assignment  of  Partnership  Interest
pursuant to which such holder shall  assign the Series B Preferred  Units to the
Partnership,  shall represent and warrant that such Series B Preferred Units are
unencumbered  and not subject to any lien and that such holder has good title to
such Series B Preferred  Units and that such holder has  requisite  authority to
assign  the  Series  B  Preferred  Units  to the  Partnership  pursuant  to such
assignment  of   Partnership   Interest  and  shall   provide  such   additional
representations and warranties and assurances (including opinions of counsel) as
shall be  reasonably  requested by the  Partnership;  provided  that no Series B
Preferred Units shall be redeemed by the Partnership unless and until the holder
thereof  shall  have  satisfied  all  of  the  conditions  to  such   redemption
(including,  without  limitation,  the delivery of the foregoing  assignment and
further assurances).

    48

     (ii) If the Partnership gives a notice of redemption in resprct of Series B
Preferred Units (which notice will be irrevocable) then, by 12:00 noon, New York
City time, on the redemption date, the Partnership  will deposit  irrevocably in
trust for the  benefit of the Series B  Preferred  Units  being  redeemed  funds
sufficient  to pay the  applicable  Series B  Redemption  Price  and  will  give
irrevocable  instructions and authority to pay such Series B Redemption Price to
the  holders of the Series B  Preferred  Units  upon  surrender  of the Series B
Preferred  Units by such  holders  at the  place  designated  in the  notice  of
redemption,  the  delivery by such holders of the opinions of counsel and future
assurances  further described in Section 16.6.C(i) hereof, and the execution and
delivery  by such  holders  of an  assignment  as further  described  in Section
16.6.C(i) hereof. If the Series B Preferred Units are evidenced by a certificate
and if fewer than all Series B Preferred  Units evidenced by any certificate are
being  redeemed,  a new  certificate  shall  be  issued  upon  surrender  of the
certificate  evidencing all Series B Preferred Units,  evidencing the unredeemed
Series B Preferred  Units without cost to the holder  thereof.  On and after the
date of  redemption,  distributions  will  cease to  accumulate  on the Series B
Preferred  Units  or  portions   thereof  called  for  redemption,   unless  the
Partnership defaults in the payment thereof. If any date fixed for redemption of
Series B Preferred  Units is not a Business  Day,  then  payment of the Series B
Redemption  Price payable on such date will be made on the next  succeeding  day
that is a Business Day (and without any interest or other  payment in respect of
any such delay)  except that,  if such  Business Day falls in the next  calendar
year,  such payment will be made on the immediately  preceding  Business Day, in
each case  with the same  force  and  effect  as if made on such date  fixed for
redemption.  If payment of the Series B Redemption Price is improperly  withheld
or  refused  and not paid by the  Partnership,  distributions  on such  Series B
Preferred Units will continue to accumulate from the original redemption date to
the date of payment,  in which case the actual  payment date will be  considered
the date fixed for redemption for purposes of calculating the applicable  Series
B Redemption Price.

     D.  The  provisions  of  Section  8.6 of this  Agreement  do not  apply  to
redemptions undertaken pursuant to this Article XVI.

SECTION 16.7  VOTING RIGHTS

     A.  GENERAL.  Holders  of the  Series B  Preferred  Units will not have any
voting  rights or right to  consent  to any  matter  requiring  the  consent  or
approval of the Limited Partners,  except as provided in Sections 7.3 and 14.1.C
and this  Section  16.7.  In the event of any  inconsistency  between  any other
provision  of this  Agreement  and the  provisions  of this  Section  16.7,  the
provisions of this Section 16.7 shall control.

     B. CERTAIN  VOTING RIGHTS.  So long as any Series B Preferred  Units remain
outstanding,  the Partnership  shall not,  without the  affirmative  vote of the
holders of at least  two-thirds of the Series B Preferred  Units  outstanding at
the time:  (i) authorize or create,  or increase the authorized or issued amount
of, any class or series of Partnership  Interests ranking senior to the Series B
Preferred  Units  with  respect  to  payment  of  distributions  or rights  upon
liquidation,  dissolution or winding-up or reclassify any Partnership  Interests
into any such senior  Partnership  Interest,  or create,  authorize or issue any
obligations or security convertible into or evidencing the right to purchase any
such senior  Partnership  Interests;  (ii) authorize or create,  or increase the
authorized or issued  amount of any Parity  Preferred  Units or  reclassify  any
Partnership Interest into any such Partnership Interest or create,  authorize or
issue any  obligations or security  convertible  into or evidencing the right to
purchase any such Partnership Interests but only to the extent such Parity

    49

Preferred  Units are issued to an Affiliate of the  Partnership,  other than the
General Partner Entity to the extent the issuance of such interests was to allow
the General Partner Entity to issue  corresponding  preferred  shares to persons
who are not  Affiliates  of the  Partnership;  or (iii) either (A)  consolidate,
merge into or with, or (other than in a manner which results in a liquidation of
the Partnership and the distributions provided for in Section 16.5 hereof (which
distributions must be in the form of Series B Preferred Shares at any time prior
to the fifth (5th)  anniversary of the date hereof))  convey,  transfer or lease
its assets  substantially  as an entirety to, any corporation or other entity or
(B) amend,  alter or repeal the provisions of the Agreement,  whether by merger,
consolidation  or otherwise,  that would  materially  and  adversely  affect the
powers, special rights, preferences,  privileges or voting power of the Series B
Preferred Units or the holders thereof; PROVIDED,  HOWEVER, that with respect to
the  occurrence  of a  merger,  consolidation  or a sale or  lease of all of the
Partnership's  assets  as an  entirety,  so long as (l) the  Partnership  is the
surviving  entity and the Series B Preferred Units remain  outstanding  with the
terms thereof unchanged, or (2) the resulting, surviving or transferee entity is
a partnership,  limited liability company or other pass-through entity organized
under the laws of any state and  substitutes  for the Series B  Preferred  Units
other interests in such entity having substantially the same terms and rights as
the Series B Preferred Units,  including with respect to  distributions,  voting
rights  and  rights  upon  liquidation,  dissolution  or  winding-up,  then  the
occurrence  of any such event shall not be deemed to  materially  and  adversely
affect such rights,  privileges  or voting powers of the holders of the Series B
Preferred Units (and shall not require the vote or consent of any of the holders
of the Series B Preferred Units);  and PROVIDED FURTHER that any increase in the
amount of  Partnership  Interests or the creation or issuance of any other class
or series of  Partnership  Interests,  in each case  ranking  (y)  junior to the
Series B  Preferred  Units with  respect to  payment  of  distributions  and the
distribution of assets upon liquidation,  dissolution or winding-up, or (z) on a
parity to the Series B Preferred Units with respect to payment of  distributions
and the  distribution of assets upon  liquidation,  dissolution or winding-up to
the extent such  Partnership  Interests  are not issued to an  affiliate  of the
Partnership, other than the General Partner Entity to the extent the issuance of
such interests was to allow the General  Partner  Entity to issue  corresponding
preferred shares to persons who are not affiliates of the Partnership, shall not
be  deemed  to  materially  and  adversely  affect  such  rights,   preferences,
privileges or voting powers (and shall not require the vote or consent of any of
the holders of the Series B Preferred Units).

SECTION 16.8  TRANSFER RESTRICTIONS

     The Series B Preferred  Units shall be subject to the provisions of Article
XI of the Agreement, as amended by this Amendment.

    50

SECTION 16.9  EXCHANGE RIGHTS

     A. RIGHT TO EXCHANGE.  (i) Series B Preferred Units will be exchangeable in
whole or in part at anytime on or after the tenth (10th) anniversary of the date
of issuance, at the option of the holders thereof, for authorized but previously
unissued  shares of 8.5%  Series B  Cumulative  Redeemable  Preferred  Shares of
Beneficial  Interest of the  General  Partner  Entity  (the  "SERIES B PREFERRED
SHARES") at an exchange  rate of one share of Series B Preferred  Shares for one
Series B Preferred Unit, subject to adjustment as described below (the "SERIES B
EXCHANGE  PRICE"),  provided  that the  Series B  Preferred  Units  will  become
exchangeable  at any time,  in whole or in part, at the option of the holders of
Series B Preferred  Units for Series B Preferred  Shares if (x) at any time full
distributions  shall not have been timely  made on any Series B  Preferred  Unit
with respect to six (6) prior  quarterly  distribution  periods,  whether or not
consecutive,  provided,  however,  that a  distribution  in  respect of Series B
Preferred Units shall be considered  timely made if made within two (2) Business
Days after the applicable Series B Preferred Unit  Distribution  Payment Date if
at the  time of  such  late  payment  there  shall  not be any  prior  quarterly
distribution  periods in respect  of which  full  distributions  were not timely
made, (y) upon receipt by a holder or holders of Series B Preferred Units of (1)
notice from the General  Partner that the General Partner or the General Partner
Entity has taken the position that the Partnership is, or upon the occurrence of
a  defined  event in the  immediate  future  will  be, a PTP and (2) an  opinion
rendered  by  an  outside  nationally   recognized   independent  legal  counsel
reasonably  acceptable  to  the  General  Partner  familiar  with  such  matters
addressed  to a  holder  or  holders  of  Series  B  Preferred  Units,  that the
Partnership  is or likely  is, or upon the  occurrence  of a defined  event that
shall occur in the immediate future will be or likely will be, a PTP, or (z) the
Net Asset Value of the  Partnership in any fiscal quarter of the  Partnership is
less  than  $200,000,000.  In  addition,  the  Series B  Preferred  Units may be
exchanged for Series B Preferred  Shares, in whole or in part, at the option any
holder prior to the tenth (10th)  anniversary of the issuance date and after the
third (3rd)  anniversary  thereof if such  holder of a Series B Preferred  Units
shall deliver to the General  Partner  either (i) a private letter ruling issued
by the  Internal  Revenue  Service  and  addressed  to such  holder  of Series B
Preferred  Units or (ii) an  opinion of  independent  legal  counsel  reasonably
acceptable  to the General  Partner based on the enactment of temporary or final
Treasury  Regulations or the publication of a Revenue Ruling,  in either case to
the effect that an exchange of the Series B Preferred Units at such earlier time
would  not  cause the  Series B  Preferred  Units to be  considered  "stock  and
securities"  within the  meaning of section  351(e) of the Code for  purposes of
determining  whether  the  holder  of  such  Series  B  Preferred  Units  is  an
"investment  company"  under  section  721(b)  of the  Code  if an  exchange  is
permitted at such earlier date. Furthermore, the Series B Preferred Units may be
exchanged in whole but not in part by any holder  thereof which is a real estate
investment  trust within the meaning of Sections 856 through 859 of the Code for
Series B Preferred Shares (but only if the exchange in whole may be accomplished
consistently with the ownership  limitations set forth under Article Nineteen of
the  Declaration  of Trust of the General  Partner  Entity  (taking into account
exceptions thereto)) if at any time, (i) the Partnership  reasonably  determines
that the  assets  and income of the  Partnership  for a taxable  year after 1999
would not satisfy the income and assets tests of Section 856 of the Code for

    51

such taxable year if the Partnership were a real estate  investment trust within
the  meaning  of the Code or (ii) any such  holder of Series B  Preferred  Units
shall deliver to the  Partnership  and the General  Partner Entity an opinion of
independent  counsel reasonably  acceptable to the General Partner Entity to the
effect  that,  based on the assets and income of the  Partnership  for a taxable
year after 1999, the  Partnership  would not satisfy the income and assets tests
of Section 856 of the Code for such taxable year if the Partnership  were a real
estate  investment  trust  within the meaning of the Code and that such  failure
would  create a  meaningful  risk that a holder of the Series B Preferred  Units
would fail to maintain qualification as a real estate investment trust.

     (ii)  Notwithstanding  anything  to  the  contrary  set  forth  in  Section
16.9.A(i),  if a Series B Exchange  Notice  (as  hereinafter  defined)  has been
delivered to the General  Partner,  then the General Partner may, at its option,
elect to redeem  or cause the  Partnership  to  redeem  all or a portion  of the
Series B Preferred  Units which are subject to such Series B Exchange Notice for
cash in an  amount  equal to the  original  Capital  Contribution  per  Series B
Preferred Unit and all accrued and unpaid  distributions  thereon to the date of
redemption.  The General  Partner may exercise its option to redeem the Series B
Preferred  Units for cash  pursuant to this  Section  16.9.A(ii)  by giving each
holder  which  tendered its Series B Preferred  Units  pursuant to such Series B
Exchange  Notice,  notice of its  election  to redeem for cash,  within five (5)
Business Days after receipt of the Series B Exchange Notice, by (m) fax, and (n)
registered  mail,  postage  paid,  at the  address of each such holder as it may
appear on the records of the Partnership  stating (A) the redemption date, which
shall be no later  than sixty (60) days  following  the  receipt of the Series B
Exchange  Notice,  (B) the Series B  Redemption  Price,  (C) the place or places
where the Series B  Preferred  Units are to be  surrendered  for  payment of the
Series B  Redemption  Price,  (D) that  distributions  on the Series B Preferred
Units  will cease to accrue on such  redemption  date;  (E) that  payment of the
Series B Redemption  Price will be made upon  presentation  and surrender of the
Series B  Preferred  Units and (F) the  aggregate  number of Series B  Preferred
Units  to be  redeemed,  and if  fewer  than  all of the  outstanding  Series  B
Preferred Units are to be redeemed, the number of Series B Preferred Units to be
redeemed held by such holder,  which number shall equal such  holder's  pro-rata
share (based on the percentage of the aggregate  number of outstanding  Series B
Preferred Units the total number of Series B Preferred Units held by such holder
represents) of the aggregate number of Series B Preferred Units being redeemed.

     (iii) In the event an  exchange  of all or a portion of Series B  Preferred
Units  pursuant to SECTION  16.9.A(I)  would violate the provisions on ownership
limitation  of the B  Preferred  Shares  set forth in  Article  Nineteen  of the
Declaration of Trust with respect to the Series B Preferred Shares,  the General
Partner shall give written  notice  thereof to each holder of record of Series B
Preferred  Units,  within  fifteen (15) Business Days  following  receipt of the
Series B Exchange Notice, by (m) fax, and (n) registered mail,  postage prepaid,
at the address of each such holder set forth in the records of the  Partnership.
In such  event,  each  holder of Series B  Preferred  Units shall be entitled to
exchange,  pursuant to the  provision  of Section  16.9.B,  a number of Series B
Preferred  Units  which  would  comply  with  the  provisions  on the  ownership
limitation of the B Preferred  Shares set forth in such Article Nineteen and any
Series B Preferred Units not so exchanged (the "EXCESS UNITS") shall be redeemed
by the Partnership for cash in an amount equal to the original Capital

    52

Contribution per Excess Unit, plus any accrued and unpaid distributions thereon,
whether or not declared, to the date of redemption.  The written notice of the B
Preferred Shares shall state (A) the number of Excess Units held by such holder,
(B) the Series B  Redemption  Price of the Excess  Units,  (C) the date on which
such  Excess  Units shall be  redeemed,  which date shall be no later than sixty
(60) days following the receipt of the Series B Exchange  Notice,  (D) the place
or places  where such  Excess  Units are to be  surrendered  for  payment of the
Series B Redemption Price, (E) that distributions on the Excess Units will cease
to  accrue  on such  redemption  date,  and (F)  that  payment  of the  Series B
Redemption  Price will be made upon  presentation  and  surrender of such Excess
Units.  In the event an exchange may, in the reasonable  judgment of the General
Partner, result in Excess Units, as a condition to such exchange, each holder of
such units agrees to provide  representations and covenants reasonably requested
by the General  Partner  relating to (1) the widely held nature of the interests
in such  holder,  sufficient  to assure the General  Partner  that the  holder's
ownership  of the  Series B  Preferred  Shares  (without  regard  to the  limits
described above) will not cause any individual to own in excess of 9.8% in value
of all shares of beneficial  interest of the General Partner Entity;  and (2) to
the  extent  such  holder  can  so  represent  and  covenant  without  obtaining
information  from  its  owners,   the  holder's  ownership  of  tenants  of  the
Partnership  and its  affiliates.  Each holder shall provide the General Partner
with any  reasonably  requested  information  which the  General  Partner  shall
require in order to  determine  whether an exchange of all or any portion of the
Series B Preferred Units pursuant to Section  16.9.A(i) hereof would violate the
limitations on ownership set forth in the  Declaration  of Trust;  provided that
General Partner only shall be entitled to such  information  from such holder to
the extent that such holder has such information  reasonably  available.  To the
extent that the General Partner requests any such information during the fifteen
(15)  Business  Day period  referenced  in the first  sentence  of this  Section
16.9.A(iii)  and the holder shall fail to provide such  information  during such
fifteen (15) Business Day period, such period shall be extended to the date that
is three  (3)  Business  Days  following  the  delivery  by the  holder  of such
information to the General Partner.

     (iv) The  redemption  of Series B  Preferred  Units  described  in  Section
16.9.A(ii)  and (iii) shall be subject to the  provisions of Section  16.6.B (i)
and Section 16.6.C(ii);  PROVIDED,  HOWEVER,  that the term "Series B Redemption
Price" in such Sections shall be read to mean the original Capital  Contribution
per  Series B  Preferred  Unit  being  redeemed  plus  all  accrued  and  unpaid
distributions to the redemption date.

    53

     B. PROCEDURE FOR EXCHANGE.  (i) Any exchange shall be exercised pursuant to
a notice of exchange (the "SERIES B EXCHANGE  NOTICE")  delivered to the General
Partner by the holder who is exercising  such exchange right, by (a) fax and (b)
by certified mail postage prepaid.  The exchange of Series B Preferred Units, or
a specified portion thereof,  may be effected after the fifth (5th) Business Day
following the expiration of the fifteen (15) day period further described in the
first  sentence of Section  16.9.A(iii),  by  delivering  certificates,  if any,
representing such Series B Preferred Units to be exchanged together with written
notice of exchange and an assignment  of such Series B Preferred  Units and such
opinions  of  counsel  and  further  assurances  further  described  in  Section
16.6.C(i)  hereof  to the  office of the  General  Partner  maintained  for such
purpose.  Currently,  such office is Three Greenway Plaza, Suite 1300,  Houston,
Texas 77046.  Each  exchange  will be deemed to have been  effected  immediately
prior to the close of  business  on the date on which  such  Series B  Preferred
Units to be exchanged (together with all required documentation) shall have been
surrendered  and  notice  shall have been  received  by the  General  Partner as
aforesaid  and the Series B Exchange  Price  shall have been paid.  Any Series B
Preferred  Shares  issued  pursuant to this  Section  16.9 shall be delivered as
shares which are duly authorized,  validly issued, fully paid and nonassessable,
free of pledge,  lien,  encumbrance or restriction  other than those provided in
the  Declaration  of  Trust,  the  Bylaws of the  General  Partner  Entity,  the
Securities Act and relevant state securities or blue sky laws.

     (ii) In the event of an exchange  of Series B Preferred  Units for Series B
Preferred  Shares,  an amount  equal to the  accrued  and unpaid  distributions,
whether or not declared, to the date of exchange on any Series B Preferred Units
tendered for  exchange  shall (a) accrue on the shares of the Series B Preferred
Shares into which such Series B Preferred Units are exchanged,  and (b) continue
to accrue on such  Series B Preferred  Units,  which  shall  remain  outstanding
following such exchange, with the General Partner as the holder of such Series B
Preferred Units.  Notwithstanding  anything to the contrary set forth herein, in
no event shall a holder of a Series B Preferred Unit that was validly  exchanged
into Series B Preferred  Shares pursuant to this section (other than the General
Partner now holding such Series B Preferred Unit), receive any cash distribution
from the Partnership,  if such holder, after exchange,  is entitled to receive a
cash  distribution  with respect to the Series B Preferred Shares for which such
Series B Preferred Unit was exchanged or redeemed.

    54

     (iii)  Fractional  shares of Series B Preferred Shares are not to be issued
upon  exchange  but,  in lieu  thereof,  the  General  Partner  will  pay a cash
adjustment  based upon the fair market value of the Series B Preferred Shares on
the day prior to the exchange  date as  determined in good faith by the Board of
Directors of the General Partner.

     C. ADJUSTMENT OF SERIES B EXCHANGE  PRICE.  (i) The Series B Exchange Price
is subject to  adjustment  upon  certain  events,  including  (a)  subdivisions,
combinations  and  reclassification  of the Series B Preferred  Shares,  and (b)
distributions  to all  holders  of  Series B  Preferred  Shares of  evidence  of
indebtedness of the General Partner Entity or assets (including securities,  but
excluding  dividends and distributions  paid in cash out of equity applicable to
Series B Preferred Shares).

     (ii) In case the General Partner Entity shall be a party to any transaction
(including,  without  limitation,  a  merger,  consolidation,   statutory  share
exchange,  tender  offer for all or  substantially  all of the  General  Partner
Entity's  capital  shares  or sale of all or  substantially  all of the  General
Partner  Entity's  assets),  in each  case as a  result  of which  the  Series B
Preferred  Shares will be converted  into the right to receive shares of capital
shares,  other  securities or other property  (including cash or any combination
thereof),  each Series B Preferred Unit will thereafter be exchangeable into the
kind and amount of shares of capital  shares and other  securities  and property
receivable  (including cash or any combination thereof) upon the consummation of
such  transaction  by a holder of that  number  of shares of Series B  Preferred
Shares  or  fraction  thereof  into  which  one  Series  B  Preferred  Unit  was
exchangeable  immediately prior to such transaction.  The General Partner Entity
may not  become a party to any such  transaction  unless the terms  thereof  are
consistent with the foregoing. In addition, so long as either Series B Preferred
Partner,  or any of their  permitted  successors  or assigns,  hold any Series B
Preferred  Units,  the General Partner Entity shall not, without the affirmative
vote of the  holders  of at least  two-thirds  of the Series B  Preferred  Units
outstanding at the time: (a) designate or create,  or increase the authorized or
issued  amount of, any class or series of shares  ranking  prior to the Series B
Preferred Shares with respect to the payment of distributions or rights upon

    55

liquidation,  dissolution or winding-up or reclassify  any authorized  shares of
the General Partner Entity into any such shares,  or create,  authorize or issue
any obligations or security convertible into or evidencing the right to purchase
any such shares;  (b) designate or create,  or increase the authorized or issued
amount of, any Parity  Preferred  Shares or reclassify any authorized  shares of
the General Partner Entity into any such shares,  or create,  authorize or issue
any obligations or security convertible into or evidencing the right to purchase
any such shares,  but only to the extent that such Parity  Preferred  Shares are
issued to an Affiliate of the General Partner Entity; (c) amend, alter or repeal
the provisions of the Declaration of Trust  (including the Series B Designation)
or bylaws of the General Partner  Entity,  whether by merger,  consolidation  or
otherwise,  that would  materially  and  adversely  affect the  powers,  special
rights, preferences, privileges or voting power of the Series B Preferred Shares
or the holders of the Series B Preferred Shares or the Series B Preferred Units;
PROVIDED,  HOWEVER,  that any  increase  in the amount of  authorized  preferred
shares of beneficial interest of the General Partner Entity ("PREFERRED SHARES")
or the creation or issuance of any other series or class of Preferred Shares, or
any increase in the amount of authorized shares of each class or series, in each
case ranking either (1) junior to the Series B Preferred  Shares with respect to
the payment of distributions  and the  distribution of assets upon  liquidation,
dissolution or winding-up, or (2) on a parity with the Series B Preferred Shares
with respect to the payment of  distributions or the distribution of assets upon
liquidation,  dissolution or winding-up to the extent such Preferred  Shares are
not issued to an Affiliate of the General Partner Entity, shall not be deemed to
materially and adversely affect such rights,  preferences,  privileges or voting
powers.

SECTION 16.10  NO CONVERSION RIGHTS

     The  holders of the Series B  Preferred  Units shall not have any rights to
convert  such  shares into shares of any other class or series of shares or into
any other securities of, or interest in, the Partnership.

SECTION 16.11  NO SINKING FUND

     No sinking fund shall be  established  for the  retirement or redemption of
Series B Preferred Units."

     10. Exhibit B, Paragraph 3. The words "and XVI" are inserted after the word
"XIII" in Paragraph 3 of Exhibit B of the Agreement.

     11.  The  Agreement  is  hereby  amended  by  adding  to  Exhibit A of said
Agreement  the addendum to Exhibit A presently  attached  hereto and made a part
hereof,  so that all references to "Exhibit A" in the Agreement  shall be deemed
to be  references  to Exhibit A which shall  include  the  addendum to Exhibit A
attached hereto.

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     12.  Except  as  amended  by  the  provisions  hereof,  the  Agreement,  as
previously amended, shall remain in full force and effect in accordance with its
terms and is hereby  ratified,  confirmed and reaffirmed by the  undersigned for
all purposes and in all respects.

     13. This Amendment  shall be binding upon and shall inure to the benefit of
the parties  hereto,  their  respective  legal  representatives,  successors and
assigns.

     14. This Amendment may be executed in  counterparts,  all of which together
shall   constitute   one   agreement   binding  on  all  the   parties   hereto,
notwithstanding that all such parties are not signatories to the original or the
same counterpart.

    57

     IN WITNESS  WHEREOF,  the parties hereto have executed this Amendment as of
the date first written above.

                            GENERAL PARTNER:

                            CPT-GP, INC.

                            By: /S/ G. STEVEN DAWSON                        
                                ------------------------------------------------
                                    Name:   G. Steven Dawson
                                    Title:  Senior Vice President and
                                            Chief Financial Officer


                           ADDITIONAL LIMITED PARTNERS

                           BELCREST REALTY CORPORATION

                            By: /S/ THOMAS E. FAUST, JR.                    
                                ------------------------------------------------
                                    Name:   Thomas E. Faust, Jr.
                                    Title:  Executive Vice President


                            BELAIR REAL ESTATE CORPORATION

                            By: /S/ THOMAS E. FAUST, JR.                    
                                ------------------------------------------------
                                    Name:   Thomas E. Faust, Jr.
                                    Title:  Executive Vice President


                            CAMDEN PROPERTY TRUST, for purposes of Sections
                            8.5.C, 16.5.A and 16.9

                            By: /S/ RICHARD J. CAMPO                        
                                ------------------------------------------------
                                    Name:   Richard J. Campo
                   Title: Chairman and Chief Executive Officer