<PAGE>
 
================================================================================
                                        



                   REGISTRATION RIGHTS AND LOCK-UP AGREEMENT

                           Dated as of April 3, 1998

                                 by and among

                               WEEKS CORPORATION

                                      and
 
                     SANFORD H. ORKIN and BARBARA H. ORKIN


================================================================================
                                        
<PAGE>
 
                   REGISTRATION RIGHTS AND LOCK-UP AGREEMENT


      THIS REGISTRATION RIGHTS AND LOCK-UP AGREEMENT (this "Agreement") is made
and entered into as of April 3, 1998 by and among WEEKS CORPORATION, a Georgia
corporation (the "Company"), SANFORD H. ORKIN, an individual resident of the
State of Georgia, and BARBARA H. ORKIN, an individual resident of the State of
Georgia, not individually, but solely (i) as Trustee of the Sherri Orkin Life
Trust U/A with Sanford H. Orkin dated December 27, 1973, (ii) as Trustee of the
Laurie Orkin Life Trust U/A with Sanford H. Orkin dated December 27, 1973, (iii)
as Trustee of the Michael Orkin Life Trust U/A with Sanford H. Orkin dated
December 27, 1973, and (iv) as Trustee of the Kenneth Orkin Life Trust U/A with
Sanford H. Orkin dated December 27, 1973 (collectively, the "Holders").

      WHEREAS, this Agreement is made pursuant to the Purchase and Sale
Agreement by and between Weeks Realty, L.P., a Georgia limited partnership (the
"Operating Partnership"), and the Contributors (as therein defined) dated as of
even date herewith (the "Contribution Agreement");

      WHEREAS, the Holders will become the owner of Units (as defined below) in
the Operating Partnership in connection with the transactions described in the
Contribution Agreement;

      WHEREAS, in order to induce the Company and the Operating Partnership to
enter into the transactions described in the Contribution Agreement,  the
Holders have agreed to the Holders Lock-up (as defined below) set forth in
Section 2 hereof; and

      WHEREAS, in order to induce the Holders to enter into the transactions
described in the Contribution Agreement, the Company has agreed, with respect to
the Units issued pursuant to the Contribution Agreement to provide the Holders
with the registration rights set forth in Section 3 hereof;

      NOW, THEREFORE, the parties hereto, in consideration of the foregoing, the
mutual covenants and agreements hereinafter set forth, and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, agree as follows:

      1.  Definitions.
          ----------- 

      As used in this Agreement, the following capitalized defined terms shall
have the following meanings:

      "Common Stock" shall mean the Common Stock, par value $.01 per share, of
       ------------                                                           
the Company.
<PAGE>
 
      "Company" shall have the meaning set forth in the Preamble and also shall
       -------                                                                 
include the Company's successors.

      "Contribution Agreement" shall have the meaning set forth in the Preamble.
       ----------------------                                                   

      "Control" shall mean the ability, whether by the direct or indirect
       -------                                                           
ownership of shares or other equity interests, by contract or otherwise, to
select a majority of the directors of a corporation, to select the managing
partner of a partnership, to select the manager of a limited liability company
or otherwise to select, or have the power to remove and then select, a majority
of those persons exercising governing authority over an Entity.  In the case of
a limited partnership, the sole general partner, each of the general partners
that has equal management control and authority, or the designated managing
general partner or managing general partners thereof shall be deemed to have
control of such partnership.  In the case of a trust, any trustee thereof or any
Person having the right to select any such trustee shall be deemed to have
control of such trust.

      "Dispose of" shall have the meaning set forth in Section 2 hereof.
       ----------                                                       

      "Entity" shall mean any general partnership, limited partnership,
       ------                                                          
corporation, limited liability company, joint venture, trust, business trust,
cooperative or association.

      "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended
       ------------                                                            
from time to time.

      "Holders" shall have the meaning set forth in the Preamble.  Holder shall
       -------                                                                 
mean each individual Holder.

      "Holders Lock-up" shall have the meaning set forth in Section 2 hereof.
       ---------------                                                       

      "Holders Lock-up Period" shall have the meaning set forth in Section 2
       ----------------------                                               
hereof.

      "NASD" shall mean the National Association of Securities Dealers, Inc.
       ----                                                                 

      "Operating Partnership" shall have the meaning set forth in the Preamble
       ---------------------                                                  
and also shall include the Operating Partnership's successors and assigns.

      "Partnership Agreement" shall mean the Second Amended and Restated
       ---------------------                                            
Agreement of Limited Partnership of the Operating Partnership, as amended.

      "Person" shall mean any individual or Entity.
       ------                                      

      "SEC" shall mean the Securities and Exchange Commission.
       ---                                                    

      "Securities Act" shall mean the Securities Act of 1933, as amended from
       --------------                                                        
time to time.

                                      -2-
<PAGE>
 
      "Selling Expenses" shall mean all underwriting discounts and selling
       ----------------                                                   
commissions and transfer taxes applicable to the sale of Shelf Registrable
Securities and disbursements of underwriters.

      "Shares" shall mean any Common Stock issued or issuable to the Holders
       ------                                                               
upon the redemption of Units.

      "Shelf Prospectus" shall mean the prospectus included in the Shelf
       ----------------                                                 
Registration Statement, including any preliminary prospectus, and any amendment
or supplement thereto, including any supplement relating to the terms of the
offering of any portion of the Shelf Registrable Securities covered by the Shelf
Registration Statement, and in each case including all material incorporated by
reference therein.

      "Shelf Registration" shall mean a registration required to be effected
       ------------------                                                   
pursuant to Section 3 hereof.

      "Shelf Registrable Securities" shall mean the Shares held by the Holders,
       ----------------------------                                            
excluding (i) Shares that have been registered under any other effective
registration statement, (ii) Shares sold or otherwise transferred pursuant to
Rule 144 under the Securities Act, and (iii) Shares held by the Holders if all
of such Shares are eligible for sale pursuant to Rule 144 under the Securities
Act and could be sold in one transaction in accordance with the volume
limitations contained in Rule 144(e)(1)(i) under the Securities Act.

      "Shelf Registration Expenses" shall mean any and all expenses incident to
       ---------------------------                                             
performance of or compliance with this Agreement, including, without limitation:
(i) all SEC, stock exchange and NASD registration and filing fees, (ii) all fees
and expenses incurred in connection with compliance with state securities or
"blue sky" laws (including reasonable fees and disbursements of counsel in
connection with qualification of any of the Shelf Registrable Securities under
any state securities or blue sky laws and the preparation of a blue sky
memorandum) and compliance with the rules of the NASD, (iii) all expenses of any
Persons in preparing or assisting in preparing, word processing, printing and
distributing the Shelf Registration Statement, any Shelf Prospectus,
certificates and other documents relating to the performance of and compliance
with this Agreement, (iv) all fees and expenses incurred in connection with the
listing, if any, of any of the Shelf Registrable Securities on any securities
exchange or exchanges pursuant to Section 4(l) hereof, (v) the fees and
disbursements of counsel for the Company and of the independent public
accountants of the Company, including the expenses of any special audits or
"cold comfort" letters required by or incident to such performance and
compliance, and (vi) all other costs and expenses normally associated with the
issuance and sale of newly issued public securities other than Selling Expenses.

      "Shelf Registration Notice" shall have the meaning set forth in Section
       -------------------------                                             
4(b) hereof.

                                      -3-
<PAGE>
 
      "Shelf Registration Statement" shall mean a registration statement of the
       ----------------------------                                            
Company (and any other entity required to be a registrant with respect to such
registration statement pursuant to the requirements of the Securities Act) that
covers all of the Shelf Registrable Securities to be offered on a delayed or
continuous basis pursuant to Rule 415 under the Securities Act, or any similar
rule that may be adopted by the SEC, and all amendments (including post-
effective amendments) to such registration statement, and all exhibits thereto
and materials incorporated by reference therein.

      "Units" shall mean the limited partnership interests of the Operating
       -----                                                               
Partnership issued to the Holders pursuant to the Contribution Agreement, which
interests are redeemable for Common Stock, or at the Operating Partnership's
option, cash.

      2.  Lock-Up Agreement.  Each of the Holders hereby agrees that with
          -----------------                                              
respect to all Units issued pursuant to the Contribution Agreement from the date
of issuance of each Unit until the first anniversary of the date of each such
issuance, without the prior written consent of the Company, such Holder will not
offer, sell, contract to sell, distribute, redeem, convert or otherwise dispose
of (collectively, "Dispose of"), directly or indirectly, to any Person any such
Units (collectively, the lock-ups are referred to as the "Holders Lock-up" and
the lock-up periods are referred to as the "Holders Lock-up Period").

      3.   Shelf Registration Under the Securities Act for the Benefit of the
           ------------------------------------------------------------------
           Holders.
           ------- 

      (a)  Filing of Shelf Registration Statement.  The Company shall cause to
           --------------------------------------                             
be filed during the third quarter of each calendar year, or as soon as
practicable thereafter, a Shelf Registration Statement providing for the sale by
the Holders of all Shelf Registrable Securities, not theretofore registered, in
accordance with the terms hereof and will use its reasonable and diligent
efforts to cause such Shelf Registration Statement to be declared effective by
the SEC as soon as practicable thereafter.  The Company agrees to use its
reasonable and diligent efforts to keep the Shelf Registration Statement with
respect to the Shelf Registrable Securities continuously effective so long as
the Holders holds such Shelf Registrable Securities.  Subject to Section 4(b)
and Section 4(i), the Company further agrees to amend the Shelf Registration
Statement if and as required by the rules, regulations or instructions
applicable to the registration form used by the Company for such Shelf
Registration Statement or by the Securities Act or any rules and regulations
thereunder; provided, however, that the Company shall not be deemed to have used
            --------  -------                                                   
its reasonable and diligent efforts to keep the Shelf Registration Statement
effective during the applicable period if it voluntarily takes any action that
would result in the Holders not being able to sell Shelf Registrable Securities
covered thereby during that period, unless such action is required under
applicable law or the Company has filed a post-effective amendment (other than
one which removes Shelf Registrable Securities from effective registration under
the Securities Act) to the Shelf Registration Statement and the SEC has not
declared it effective or except as otherwise permitted by the last three
sentences of Section 4(b).

      (b)  Expenses.  The Company shall pay all Shelf Registration Expenses in
           --------                                                           
connection with each registration pursuant to Section 3(a).  Each Holder shall
pay all Selling Expenses and the

                                      -4-
<PAGE>
 
fees and disbursements of counsel representing such Holder, if any, relating to
the sale or disposition of such Shelf Registrable Securities pursuant to the
Shelf Registration Statement.

      (c)  Inclusion in Shelf Registration Statement.  If any Holder does not
           -----------------------------------------                         
provide the information reasonably requested by the Company in connection with
the Shelf Registration Statement as promptly as practicable after receipt of
such request, but in no event later than ten (10) days thereafter, it shall not
be entitled to have its Shelf Registrable Securities included in the Shelf
Registration Statement.

      4.  Shelf Registration Procedures.
          ----------------------------- 

      In connection with the obligations of the Company with respect to each
Shelf Registration Statement contemplated by Section 3 hereof, the Company
shall:

           (a) prepare and file with the SEC, within the time period set forth
      in Section 3 hereof, the Shelf Registration Statement, which Shelf
      Registration Statement (i) shall be available for the sale of the Shelf
      Registrable Securities in accordance with the intended method or methods
      of distribution by the Holders covered thereby and (ii) shall comply as to
      form in all material respects with the requirements of the applicable form
      and include all financial statements required by the SEC to be filed
      therewith;

           (b) subject to the last three sentences of this Section 4(b) and
      Section 4(i) hereof, (i) prepare and file with the SEC such amendments to
      such Shelf Registration Statement as may be necessary to keep such Shelf
      Registration Statement effective for the applicable period; (ii) cause the
      Shelf Prospectus to be amended or supplemented as required and to be filed
      as required by Rule 424 or any similar rule that may be adopted under the
      Securities Act; (iii) respond as promptly as practicable to any comments
      received from the SEC with respect to the Shelf Registration Statement or
      any amendment thereto; and (iv) comply with the provisions of the
      Securities Act with respect to the disposition of all securities covered
      by such Shelf Registration Statement during the applicable period in
      accordance with the intended method or methods of distribution by the
      Holders covered thereby.  Notwithstanding anything to the contrary
      contained herein, the Company shall not be required to take any of the
      actions described in clauses (i), (ii) or (iii) in this Section 4(b),
      Section 4(d) or Section 4(i) with respect to the Shelf Registrable
      Securities (x) to the extent that the Company is in possession of material
      non-public information that it deems advisable not to disclose or is
      engaged in active negotiations or planning for a merger or acquisition or
      disposition transaction and it delivers written notice to the Holders to
      the effect that the Holders may not make offers or sales under the Shelf
      Registration Statement for a period not to exceed ninety (90) days from
      the date of such notice; provided, however, that the Company may deliver
                               --------  -------                              
      only two such notices within any twelve-month period, and (y) unless and
      until the Company has received a written notice (a "Shelf Registration
      

                                      -5-
<PAGE>
 
      Notice") from the Holders that it intends to make offers or sales under
      the Shelf Registration Statement as specified in such Shelf Registration
      Notice; provided, however, that the Company shall have ten (10) business
              --------  -------                                               
      days to prepare and file any such amendment or supplement after receipt of
      the Shelf Registration Notice.  Once the Holders have delivered a Shelf
      Registration Notice to the Company, each Holder covered thereby shall
      promptly provide to the Company such information as the Company reasonably
      requests in order to identify the method of distribution in a post-
      effective amendment to the Shelf Registration Statement or a supplement to
      the Shelf Prospectus.  Such Holders also shall notify the Company in
      writing upon completion of such offer or sale or at such time as such
      Holders no longer intend to make offers or sales under the Shelf
      Registration Statement;

           (c) after the Holders have delivered a Shelf Registration Notice to
      the Company, furnish each Holder covered thereby, without charge, as many
      copies of each Shelf Prospectus and any amendment or supplement thereto in
      order to facilitate the public sale or other disposition of the Shelf
      Registrable Securities; the Company consents to the use of the Shelf
      Prospectus and any amendment or supplement thereto by the Holders of Shelf
      Registrable Securities in connection with the offering and sale of the
      Shelf Registrable Securities covered by the Shelf Prospectus or amendment
      or supplement thereto;

           (d) use its reasonable and diligent efforts to register or qualify
      the Shelf Registrable Securities by the time the Shelf Registration
      Statement is declared effective by the SEC under all applicable state
      securities or blue sky laws of such jurisdictions in the United States and
      its territories and possessions as the Holders shall reasonably request in
      writing, keep each such registration or qualification effective during the
      period such Shelf Registration Statement is required to be kept effective
      or during the period offers or sales are being made by the Holders after
      they have delivered a Shelf Registration Notice to the Company, whichever
      is shorter; provided, however, that in connection therewith, the Company
                  --------  -------                                           
      shall not be required to (i) qualify as a foreign corporation to do
      business or to register as a broker or dealer in any such jurisdiction
      where it would not otherwise be required to qualify or register but for
      this Section 4(d), (ii) subject itself to taxation in any such
      jurisdiction where is not otherwise subject to taxation, or (iii) file a
      general consent to service of process in any such jurisdiction;

           (e) notify the Holders promptly and confirm in writing, (i) when the
      Shelf Registration Statement and any post-effective amendments thereto
      have become effective, (ii) when any amendment or supplement to the Shelf
      Prospectus has been filed with the SEC, (iii) of the issuance by the SEC
      or any state securities authority of any stop order suspending the
      effectiveness of the Shelf Registration Statement or any part thereof or
      the initiation of any proceedings for that purpose, (iv) if the Company
      receives any notification with respect to the suspension of the
      qualification of the Shelf Registrable Securities for offer or sale in any
      jurisdiction or the initiation of any proceeding for such purpose, and (v)
      of the happening of any event during the period the Shelf Registration
      Statement is effective as a result of which (A) such Shelf Registration
      Statement contains any untrue

                                      -6-
<PAGE>
 
      statement of a material fact or omits to state any material fact required
      to be stated therein or necessary to make the statements therein not
      misleading or (B) the Shelf Prospectus as then amended or supplemented
      contains any untrue statement of a material fact or omits to state any
      material fact necessary in order to make the statements therein, in light
      of the circumstances under which they were made, not misleading;

           (f) make every reasonable effort to obtain the withdrawal of any
      order suspending the effectiveness of the Shelf Registration Statement or
      any part thereof as promptly as possible;

           (g) after the Holders have delivered a Shelf Registration Notice to
      the Company, furnish to each Holder covered thereby, without charge, at
      least one conformed copy of the Shelf Registration Statement and any post-
      effective amendment thereto (without documents incorporated therein by
      reference or exhibits thereto, unless requested);

           (h) cooperate with each selling Holder to facilitate the timely
      preparation and delivery of certificates representing Shelf Registrable
      Securities to be sold and not bearing any Securities Act legend; and
      enable certificates for such Shelf Registrable Securities to be issued for
      such numbers of shares as each Holder may reasonably request at least two
      business days prior to any sale of Shelf Registrable Securities;

           (i) subject to the last three sentences of Section 4(b) hereof, upon
      the occurrence of any event contemplated by clause (x) of Section 4(b) or
      clause (v) of Section 4(e) hereof, use its reasonable and diligent efforts
      promptly to prepare and file an amendment or a supplement to the Shelf
      Prospectus or any document incorporated therein by reference or prepare,
      file and obtain effectiveness of a post-effective amendment to the Shelf
      Registration Statement, or file any other required document, in any such
      case to the extent necessary so that, as thereafter delivered to the
      purchasers of the Shelf Registrable Securities, such Shelf Prospectus as
      then amended or supplemented will not contain any untrue statement of a
      material fact or omit to state any material fact necessary in order to
      make the statements therein, in the light of the circumstances under which
      they are made, not misleading;

           (j) after the Holders have provided a Shelf Registration Notice to
      the Company, make available for inspection by each Holder covered thereby
      and any counsel, accountants or other representatives retained by such
      Holder all financial and other records, pertinent corporate documents and
      properties of the Company and cause the officers, directors and employees
      of the Company to supply all such records, documents or information
      reasonably requested by such Holder, counsel, accountants or
      representatives in connection with the Shelf Registration Statement;
      provided, however, that such records, documents or information which the
      --------  -------                                                       
      Company determines in good faith to be confidential and notifies

                                      -7-
<PAGE>
 
      such Holder, counsel, accountants or representatives in writing that such
      records, documents or information are confidential shall not be disclosed
      by such Holder, counsel, accountants or representatives unless (i) such
      disclosure is ordered pursuant to a subpoena or other order from a court
      of competent jurisdiction or governmental agency, or (ii) such records,
      documents or information become generally available to the public other
      than through a breach of this Agreement;

           (k) a reasonable time prior to the filing of any Shelf Registration
      Statement or any amendment thereto, or any Shelf Prospectus or any
      amendment or supplement thereto, provide copies of such document (not
      including any documents incorporated by reference therein unless
      requested) to each Holder covered thereby after the Holders have provided
      a Shelf Registration Notice to the Company;

           (l) use its reasonable and diligent efforts to cause all Shelf
      Registrable Securities to be listed on any securities exchange on which
      similar securities issued by the Company are then listed;

           (m) provide a CUSIP number for all Shelf Registrable Securities, not
      later than the effective date of a Shelf Registration Statement; and

           (n) use its reasonable efforts to make available to its security
      holders, as soon as reasonably practicable, an earnings statement covering
      at least 12 months which shall satisfy the provisions of Section 11(a) of
      the Securities Act and Rule 158 thereunder or any similar rule as may be
      adopted by the SEC.

      The Company may require each Holder to furnish to the Company in writing
such information regarding the proposed distribution by such Holder as the
Company may from time to time reasonably request in writing.

      In connection with and as a condition to the Company's obligations with
respect to the Shelf Registration Statement pursuant to Section 3 hereof and
this Section 4, each Holder covenants and agrees that (i) it will not offer or
sell any Shelf Registrable Securities under the Shelf Registration Statement
until it has provided a Shelf Registration Notice pursuant to Section 4(b) and
has received copies of the Shelf Prospectus as then amended or supplemented as
contemplated by Section 4(c) and notice from the Company that the Shelf
Registration Statement and any post-effective amendments thereto have become
effective as contemplated by Section 4(e); (ii) upon receipt of any notice from
the Company contemplated by Section 4(b) or Section 4(e) (in respect of the
occurrence of an event contemplated by clause (v) of Section 4(e)), such Holder
shall not offer or sell any Shelf Registrable Securities pursuant to the Shelf
Registration Statement until such Holder receives copies of the supplemented or
amended Shelf Prospectus contemplated by Section 4(i) hereof and receives notice
that any post-effective amendment has become effective, and, if so directed by
the Company, such Holder will deliver to the Company (at the expense of the
Company) all copies in its possession, other than permanent file copies then in
such Holder's possession, of the Shelf 

                                      -8-
<PAGE>
 
Prospectus as amended or supplemented at the time of receipt of such notice;
(iii) all offers and sales by such Holder under the Shelf Registration Statement
shall be completed within sixty (60) days after the first date on which offers
or sales can be made pursuant to clause (i) above, and upon expiration of such
sixty (60) day period, such Holder will not offer or sell any Shelf Registrable
Securities under the Shelf Registration Statement until it has again complied
with the provisions of clause (i) above; (iv) such Holder and any of its
beneficial owners, officers, directors or affiliates, if any, will comply with
the provisions of Regulation M promulgated by the SEC as applicable to them in
connection with sales of Shelf Registrable Securities pursuant to the Shelf
Registration Statement; (v) such Holder and any of its beneficial owners,
officers, directors or affiliates, if any, will comply with the prospectus
delivery requirements of the Securities Act as applicable to them in connection
with sales of Shelf Registrable Securities pursuant to the Shelf Registration
Statement; and (vi) such Holder and any of its beneficial owners, officers,
directors or affiliates, if any, will enter into such written agreements as the
Company shall reasonably request to ensure compliance with clause (iv) and (v)
above.

      5.  Holdback Agreements.  Each Holder agrees not to effect any public sale
          -------------------                                                   
or distribution (including sales pursuant to Rule 144) of equity securities of
the Company, or any securities convertible into or exchangeable or exercisable
for such securities, during the 7 days prior to (provided that such Holder
receives a notice from the Company of the commencement of such 7-day period) and
the 90-day period beginning on the effective date of any underwritten offering
of securities by the Company (except as part of such underwritten registration),
unless the underwriters managing the registered public offering otherwise agree.

      6.  Indemnification; Contribution.
          ----------------------------- 

      (a)   Indemnification by the Company.  The Company agrees to indemnify and
            ------------------------------                                      
hold harmless each Holder and the beneficial owners, officers and directors and
each Person, if any, who controls each Holder within the meaning of Section 15
of the Securities Act as follows:

             (i) against any and all loss, liability, claim, damage and expense
      whatsoever, as incurred, to which each Holder, or any beneficial owner,
      officer, director or controlling Person may become subject under the
      Securities Act or otherwise (A) that arise out of or are based upon any
      untrue statement or alleged untrue statement of a material fact contained
      in the Shelf Registration Statement or any amendment thereto, or the
      omission or alleged omission to state therein a material fact required to
      be stated therein or necessary to make the statements therein not
      misleading or (B) that arise out of or are based upon any untrue statement
      or alleged untrue statement of a material fact contained in any Shelf
      Prospectus or any amendment or supplement thereto, or the omission or
      alleged omission to state therein a material fact necessary in order to
      make the statements therein, in the light of the circumstances under which
      they were made, not misleading;

                                      -9-
<PAGE>
 
             (ii) against any and all loss, liability, claim, damage and expense
      whatsoever, as incurred, to the extent of the aggregate amount paid in
      settlement of any litigation, or investigation or proceeding by any
      governmental agency or body, commenced or threatened, or of any claim
      whatsoever based upon any such untrue statement or alleged untrue
      statement or any omission or alleged omission, if such settlement is
      effected with the written consent of the Company; and

             (iii)  subject to the limitations set forth in Section 6(c),
      against any and all expense whatsoever, as incurred (including reasonable
      fees and disbursements of counsel), reasonably incurred in investigating,
      preparing or defending against any litigation, or investigation or
      proceeding by any governmental agency or body, commenced or threatened, in
      each case whether or not a party, or any claim whatsoever based upon any
      such untrue statement or alleged untrue statement or omission or alleged
      omission, to the extent that any such expense is not paid under
      subparagraph (i) or (ii) above;

provided, however, that the indemnity provided pursuant to this Section 6(a)
--------  -------                                                           
shall not apply with respect to any loss, liability, claim, damage or expense
that arise out of or are based upon any untrue statement or alleged untrue
statement or omission or alleged omission made in reliance upon and in
conformity with written information furnished to the Company by any Holder (i)
expressly for use in the Shelf Registration Statement or any amendment thereto,
or the Shelf Prospectus or any amendment or supplement thereto or (ii) pursuant
to any representation, warranty or other statement contained in the Contribution
Agreement or any admission amendment to the Partnership Agreement.

      (b) Indemnification by the Holders.   Each Holder severally agrees to
          ------------------------------                                   
indemnify and hold harmless the Company, and each of its respective directors
and officers (including each director and officer of the Company who signed the
Shelf Registration Statement), and each Person, if any, who controls the Company
within the meaning of Section 15 of the Securities Act, to the same extent as
the indemnity contained in Section 6(a) hereof, but only insofar as such loss,
liability, claim, damage or expense arises out of or is based upon any untrue
statement or alleged untrue statement or omission or alleged omission made in
the Shelf Registration Statement or any amendment thereto, or the Shelf
Prospectus or any amendment or supplement thereto, in reliance upon and in
conformity with written information furnished to the Company by such Holder
expressly for use therein.  In no event, however shall the liability of a Holder
exceed the cumulative net proceeds received by such Holder from any offering
made in connection with a Shelf Registration Statement.

      (c) Conduct of Indemnification Proceedings.  Each indemnified party shall
          --------------------------------------                               
give reasonably prompt notice to each indemnifying party of any action or
proceeding commenced against it in respect of which indemnity may be sought
hereunder, but failure to so notify an indemnifying party (i) shall not relieve
it from any liability which it may have under the indemnity agreement provided
in Section 6(a) or (b) above, unless and to the extent it did not otherwise
learn of such action and the lack of notice by the indemnified party materially
prejudices the indemnifying party or results in the forfeiture by the
indemnifying party of substantial rights and defenses and 

                                      -10-
<PAGE>
 
(ii) shall not, in any event, relieve the indemnifying party from any
obligations to any indemnified party other than the indemnification obligation
provided under Section 6(a) or (b) above. After receipt of such notice, the
indemnifying party shall be entitled to participate in and, to the extent it
shall wish, jointly with any other indemnifying party so notified, to assume the
defense of such action or proceeding at such indemnifying party's own expense
with counsel chosen by such indemnifying party and approved by the indemnified
party, which approval shall not be unreasonably withheld; provided, however,
                                                          --------  -------
that, if the defendants in any such action or proceeding include both the
indemnified party and the indemnifying party and the indemnified party
reasonably determines, upon advice of counsel, that a conflict of interest
exists or that there may be legal defenses available to it or other indemnified
parties that are different from or in addition to those available to the
indemnifying party, then the indemnified party shall be entitled to separate
counsel (which shall be limited to a single law firm), the reasonable fees and
expenses of which shall be paid by the indemnifying party. If the indemnifying
party does not assume the defense of any such action or proceeding, after having
received the notice referred to in the first sentence of this paragraph, the
indemnifying party will pay the reasonable fees and expenses of counsel (which
shall be limited to a single law firm) for the indemnified party. In such event,
however, the indemnifying party will not be liable for any settlement effected
without the written consent of such indemnifying party. If the indemnifying
party assumes the defense of any such action or proceeding in accordance with
this paragraph, such indemnifying party shall not be liable for any fees and
expenses of counsel for the indemnified party incurred thereafter in connection
with such action or proceeding, except as set forth in the proviso in the second
sentence of this Section 6(c).

      (d) Contribution.  In order to provide for just and equitable contribution
          ------------                                                          
in circumstances in which the indemnity agreement provided for in this Section 6
is for any reason held to be unenforceable although applicable in accordance
with its terms, the Company and the selling Holder shall contribute to the
aggregate losses, liabilities, claims, damages and expenses of the nature
contemplated by such indemnity agreement incurred by the Company and the selling
Holders, in such proportion as is appropriate to reflect the relative fault of
and benefits to the Company on the one hand and the selling Holders on the other
(in such proportion that the selling Holders are severally, not jointly,
responsible for the balance), in connection with the statements or omissions
which resulted in such losses, claims, damages, liabilities or expenses, as well
as any other relevant equitable considerations.  The relative benefits to the
indemnifying party and indemnified  parties shall be determined by reference to,
among other things, the total proceeds received by the indemnified party and
indemnified parties in connection with the offering to which such losses,
claims, damages, liabilities or expenses relate.  The relative fault of the
indemnifying party and indemnified parties shall be determined by reference to,
among other things, whether the action in question, including any untrue or
alleged untrue statement of a material fact or omission or alleged omission to
state a material fact, has been made by, or relates to information supplied by,
such indemnifying party or the indemnified parties, and the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
such action.

                                      -11-
<PAGE>
 
      The parties hereto agree that it would not be just or equitable if
contribution pursuant to this Section 6(d) were determined by pro rata
allocation or by any other method of allocation which does not take account of
the equitable considerations referred to in the immediately preceding paragraph.
Notwithstanding the provisions of this Section 6(d), a Holder shall not be
required to contribute any amount in excess of the amount by which the total
price at which the Shelf Registrable Securities of such Holder were offered to
the public exceeds the amount of any damages which such Holder would otherwise
have been required to pay by reason of such untrue statement or omission.

      Notwithstanding the foregoing, no Person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any Person who was not guilty of such
fraudulent misrepresentation.  For purposes of this Section 6(d), each Person,
if any, who controls any Holder within the meaning of Section 15 of the
Securities Act and beneficial owners, directors and officers of any Holder shall
have the same rights to contribution as any member of the Holders, and each
director of the Company, each officer of the Company who signed the Shelf
Registration Statement, and each Person, if any, who controls the Company within
the meaning of Section 15 of the Securities Act shall have the same rights to
contribution as the Company.

      (e) In the event any sale pursuant to a Shelf Registration is an
underwritten offering, then the Company agrees to indemnify and hold harmless
each underwriter of Shelf Registrable Securities to the same extent and on
substantially similar terms as the Company's indemnification of the members of
the Holders as set forth in Section 6(a) above.

      7.   Rule 144 Sales.
           -------------- 

      (a) Compliance.  The Company covenants that, so long as it is subject to
          ----------                                                          
the reporting requirements of the Exchange Act, it will file the reports
required to be filed by it under the Exchange Act so as to enable the Holders to
sell Shelf Registrable Securities pursuant to Rule 144 under the Securities Act.

      (b) Cooperation with the Holders.  In connection with any sale, transfer
          ----------------------------                                        
or other disposition by a Holder of any Shelf Registrable Securities pursuant to
Rule 144 under the Securities Act, the Company shall cooperate with such Holder
to facilitate the timely preparation and delivery of certificates representing
Shelf Registrable Securities to be sold and not bearing any Securities Act
legend, and enable certificates for such Shelf Registrable Securities to be for
such number of shares as such Holder may reasonably request at least two
business days prior to any sale of Shelf Registrable Securities.

      8.   Miscellaneous.
           ------------- 

      (a) Amendments and Waivers.  The provisions of this Agreement, including
          ----------------------                                              
the provisions of this sentence, may not be amended, modified, supplemented or
waived, nor may 

                                      -12-
<PAGE>
 
consent to departures therefrom be given, without the written consent of the
Company and the Holders.

      (b) Notices.  All notices and other communications provided for or
          -------                                                       
permitted hereunder shall be made in writing by hand-delivery, registered first-
class mail, telex, telecopier, or any courier guaranteeing overnight delivery,
(i) if to the Holders, at the respective addresses set forth in the Contribution
Agreement, or (ii) if to the Company, at 4497 Park Drive, Norcross, Georgia
30093, Attention: A. R. Weeks, Jr.

      All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; five business
days after being deposited in the mail, postage prepaid, if mailed; when
answered back, if telexed; when receipt is acknowledged, if telecopied; or at
the time delivered if delivered by an air courier guaranteeing overnight
delivery.

      (c) No Assignment.  This Agreement shall inure to the benefit of and be
          -------------                                                      
binding upon the parties hereto and, where applicable, their successors and
permitted assigns.  No party to this Agreement may assign or delegate all or any
portion of its rights, obligations, or liabilities under this Agreement without
the prior written consent of each other party to this Agreement; provided,
however, that the each of the Holders may transfer its rights and obligations
under this Agreement to any affiliate of such holder in connection with a
transfer of such Holder's Units, provided, further, that such transfer shall not
become effective until the Holder shall have given prior written notice to the
Company of such transfer and the Company shall have amended the Shelf
Registration Statement to reflect such transfer.  Nothing expressed or implied
herein is intended or shall be construed to confer upon or give to any third
party any rights or remedies by virtue hereof.

      (d) Third Party Beneficiaries.  There shall be no third party
          -------------------------                                
beneficiaries or intended beneficiaries of this Agreement

      (e) Counterparts.  This Agreement may be executed in any number of
          ------------                                                  
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

      (f) Headings.  The headings in this Agreement are for convenience of
          --------                                                        
reference only and shall not limit or otherwise affect the meaning hereof.

      (g) Governing Law.  This Agreement shall be governed by and construed in
          -------------                                                       
accordance with the laws of the State of Georgia without giving effect to the
conflicts of law provisions thereof.

      (h) Specific Performance.  The parties hereto acknowledge that there would
          --------------------                                                  
be no adequate remedy at law if any party fails to perform any of its
obligations hereunder, and accordingly agree that each party, in addition to any
other remedy to which it may be entitled at law 

                                      -13-
<PAGE>
 
or in equity, shall be entitled to compel specific performance of the
obligations of any other party under this Agreement in accordance with the terms
and conditions of this Agreement in any court of the United States or any State
thereof having jurisdiction.

      (i) Entire Agreement.  This Agreement is intended by the parties as a
          ----------------                                                 
final expression of their agreement and intended to be a complete and exclusive
statement of the agreement and understanding of the parties hereto in respect of
the subject matter contained herein.  This Agreement supersedes all prior
agreements and understandings between the parties with respect to such subject
matter.

                                      -14-
<PAGE>
 
      IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                       WEEKS CORPORATION


                                        By: /s/ Forrest R. Robinson
                                           ------------------------------
                                           Name:
                                           Title:  President/COO

                                          /s/ Sanford H. Orkin
                                        ---------------------------------
                                        SANFORD H. ORKIN

                                          /s/ Barbara H. Orkin
                                        ----------------------------------
                                        BARBARA H. ORKIN, as Trustee of the
                                        Sherri Orkin Life Trust U/A with Sanford
                                        H. Orkin, dated December, 1973, (ii) as
                                        Trustee of the Laurie Orkin Life Trust
                                        U/A with Sanford H. Orkin, dated
                                        December 27, 1973, (iii) as Trustee of
                                        the Michael Orkin Life Trust U/A with
                                        Sanford H. Orkin, dated December 27,
                                        1973, and (iv) as Trustee of the Kenneth
                                        Orkin Life Trust U/A with Sanford H.
                                        Orkin, dated December 23, 1973

                                      -15-