CONTRIBUTION AGREEMENT


         This   CONTRIBUTION   AGREEMENT,   dated  as  of  June  16,  1997  (the
"Agreement"),  is entered into by and among Magellan  Health  Services,  Inc., a
Delaware  corporation  ("Magellan"),   Crescent  Operating,   Inc.,  a  Delaware
corporation  ("Crescent"),  and Charter  Behavioral Health Systems,  LLC, formed
under the laws of the State of Delaware ("Charter LLC").

         WHEREAS,   Magellan  and   Crescent   Real  Estate   Equities   Limited
Partnership, a Delaware limited partnership ("CREELP"), have entered into a Real
Estate  Purchase and Sale  Agreement  dated  January 29, 1997, as amended by the
First  Amendment to Real Estate Purchase and Sale Agreement dated as of February
28, 1997 and as further  amended  ("Real Estate  Purchase and Sale  Agreement"),
pursuant  to which  Magellan  has agreed to cause  certain  of its  subsidiaries
listed on Exhibit A to the Real Estate  Purchase  and Sale  Agreement to sell to
CREELP or an affiliate of CREELP ("Crescent  Affiliate"),  and CREELP has agreed
to  purchase,   or  to  cause  Crescent   Affiliate  to  purchase,   from  those
subsidiaries,  certain of the real property,  related  improvements,  furniture,
equipment and fixtures owned by those  subsidiaries (the  "Facilities") and used
in the operation of Magellan's acute care psychiatric hospitals;

         WHEREAS,  Magellan and Crescent desire to operate and maintain  Charter
LLC to (i) operate the Facilities and certain leased facilities  (together,  the
"Hospitals");  and (ii)  engage in the  business  of  hospital-based  behavioral
healthcare using Charter LLC as the operating entity;

         WHEREAS,  it is a  condition  to the  consummation  of the Real  Estate
Purchase and Sale Agreement and the other  Transaction  Documents (as defined in
the  Real  Estate   Purchase  and  Sale   Agreement)  that  Magellan  cause  its
subsidiaries listed on Exhibit A to this Agreement (each a "Magellan Subsidiary"
and  together the  "Magellan  Subsidiaries")  to  contribute  certain  assets to
Charter  LLC, and that  Crescent  contribute  certain  assets to Charter LLC, in
exchange for all of the interests in Charter LLC (the "Contribution");

         WHEREAS,  upon  closing  of  the  transactions   contemplated  by  this
Agreement and the Real Estate Purchase and Sale  Agreement,  (i) Charter LLC and
Magellan,  through its wholly owned subsidiary Charter Franchise  Services,  LLC
("CFS," collectively with Magellan,  "Franchisor"),  will enter into a Franchise
Agreement, dated the date hereof (the "Franchise Agreement") and will cause each
Charter  LLC  Subsidiary  (as  hereafter  defined)  to  enter  into a  Franchise
Agreement  dated the date  hereof (the  "Subsidiary  Franchise  Agreement"  and,
collectively with the Master Franchise  Agreement,  the "Franchise  Agreement"),
(ii) Charter Behavioral Health Systems,  Inc. ("Charter Inc.") and Crescent will
enter into that certain Operating Agreement of Charter LLC dated the date hereof
(the "Charter LLC Agreement"),  and (iii) Magellan,  Crescent Affiliate, CFS and
Charter LLC will enter into a Subordination Agreement dated the date hereof (the
"Subordination Agreement");


                                      - 1 -





                               A G R E E M E N T:

         In consideration  of the mutual  covenants  contained in this Agreement
the parties agree as follows:


                                   SECTION 1.

                                   DEFINITIONS

         1.1      Definitions.  As used in this Agreement, the following terms 
shall have the following meanings unless the context otherwise requires:

         "Business"  shall mean the  business of the  operation of an acute care
psychiatric hospital,  part of an acute care general hospital operating an acute
care psychiatric unit, a behavioral  healthcare  residential treatment center, a
part of a facility  operating  a  behavioral  healthcare  residential  treatment
center, or other similar facility providing 24-hour behavioral  healthcare,  and
the delivery of behavioral  healthcare  from such facility and other  affiliated
facilities;  such behavioral  healthcare to include  inpatient  hospitalization,
partial  hospitalization  programs,  outpatient  therapy,  intensive  outpatient
therapy, ambulatory detoxification, behavioral modification programs and related
services.

         "Contribution  Date" shall mean the moment in time immediately prior to
the Closing Date.

         1.2      Other Defined Terms.  Capitalized terms not otherwise defined 
in this Agreement shall have the meanings given them in the Real Estate Purchase
and Sale Agreement.


                                   SECTION 2.

                                  CONTRIBUTION

         2.1  Contribution of Assets  Relating to the Hospitals by Magellan.  On
the  Contribution  Date, on the terms and subject to the conditions set forth in
this Agreement, and in consideration for a 50% interest in Charter LLC, Magellan
will cause the  relevant  Magellan  Subsidiary  to (either  directly  or through
Magellan)  contribute  or assign to  Charter  LLC or a  relevant,  wholly  owned
subsidiary  of Charter LLC (a "Charter  LLC  Subsidiary")  all of such  Magellan
Subsidiary's right, title and interest in the following assets (the "Contributed
Assets") related to the Hospitals:

         (a)      All patient medical records;

         (b)      All licenses and permits used in the operation of the 
Hospitals, to the extent that such licenses and permits are transferable;

                                      - 2 -






         (c) All of the leasehold  interests held by any Magellan  Subsidiary as
lessee, in real or personal property including, but not limited to the leasehold
interests in those Hospitals set forth on Schedule 2.1(c);

         (d) All of the furniture, fixtures equipment and leasehold improvements
owned by Magellan or a Magellan  Subsidiary  and located at a Hospital set forth
on Schedule 2.1(c) or any other leased premises included in Section 2.1(c);

         (e) All contracts with physicians and other healthcare professionals;

         (f) All operating, service, maintenance and loaned employee contracts;

         (g) All payor  contracts  including  but not limited to contracts  with
employers,  health maintenance organizations,  preferred provider organizations,
managed care companies,  and insurance  companies but excluding all national and
regional  contracts  with  vendors  and  payors,  the  benefits of which will be
provided to Charter LLC by Franchisor pursuant to the Franchise Agreement;

         (h) The employment contract between Magellan and John M. DeStefanis;

         (i) The stock of Charter Medical Executive Corporation ("CMEC"); and

         (j) Employment files and records.

         2.2 Excluded  Assets.  Magellan and Crescent  expressly  understand and
agree  that  neither  Magellan  nor any  Magellan  Subsidiary  is  conveying  or
contributing  to Charter LLC or any Charter LLC  Subsidiary  pursuant to Section
2.1 any of the  following  assets,  rights or properties or any assets which are
not  used  in the  conduct  of the  business  of the  Hospitals  (the  "Excluded
Assets"):

         (a) Supplies and inventory relating to the Hospitals;

         (b) Notes receivable relating to the Hospitals;

         (c) Prepaid assets relating to the Hospitals;

         (d) Prepaid expenses relating to the Hospitals;

         (e) Lease deposits paid by either Magellan or any Magellan Subsidiary 
as tenant in any lease relating to the Hospitals;

         (f) Utility deposits relating to the Hospitals;

         (g) Cash held in escrow accounts relating to the Hospitals;

                                      - 3 -






         (h) The capital stock of any  subsidiary of Magellan  (other than CMEC)
or  Magellan's  interest in any joint  venture  including but not limited to the
joint ventures set forth on Schedule 2.2(h) (except as provided in Section 3.1);

         (i) Corporate seals, minute books, stock ledgers or other books and 
records pertaining to the organization, issuance of stock and capitalization of 
the Magellan Subsidiaries;

         (j) All rights, properties, and assets used by Magellan primarily in a
business other than the Business and not reasonably necessary for the 
operation of the Business;

         (k) All rights, properties, and assets that shall have been transferred
or disposed of by Magellan or any of its subsidiaries  prior to the date of this
Agreement or prior to Closing in the ordinary course of business;

         (l) Trademarks, trade names (including the "Charter" name), 
corporate names and logos owned by Magellan and any of its subsidiaries;

         (m) All real estate, furniture, fixtures and equipment to be 
transferred to Crescent under the Real Estate Purchase and Sale Agreement;

         (n) Any deferred tax asset of a Magellan Subsidiary at the Closing
Date;

         (o) The  Charter  System  (as  defined  in  the  Franchise  Agreement)
including but not limited to all treatment protocols,  written or unwritten, and
future improvements and modifications, whether made by CFS, Magellan, a Magellan
subsidiary,  Charter LLC or a Charter LLC Franchisee as defined in the Franchise
Agreement;

         (p) Policy and  procedure  manuals,  written or  unwritten,  and future
improvements and modifications to such manuals, whether made by CFS, Magellan, a
Magellan subsidiary, Charter LLC or an Charter LLC Subsidiary;

         (q) All cash, cash equivalents, short-term investments, marketable
securities, andaccounts receivable of Magellan and each Magellan Subsidiary;

         (r) Patient related software systems;

         (s) TRIMS system;

         (t) Purchasing/ordering systems;

         (u) Accounting systems;

         (v) Call center system;


                                      - 4 -





         (w) Intellectual property rights;

         (x) Tax refunds,  cost report  adjustments and settlements  relating to
periods  prior  to the  Closing  Date  and  liabilities  or  assets  related  to
depreciation recapture relating to periods prior to the Closing Date;

         (y) Disproportionate Share Payments; and

         (z) Assets  (including  business  records) required in order to provide
the services to be provided by Franchisor pursuant to the Franchise Agreement.

         2.3 Assumed Obligations. Magellan and Crescent expressly understand and
agree that all of the debts, obligations, duties and liabilities,  liquidated or
unliquidated,  contingent or fixed,  relating to or arising out of the operation
of the  Hospitals  and the business of Charter LLC after the Closing (as well as
those in subsections  (c) and (d) below) but excluding each and every  liability
and obligation  for which Magellan has agreed to indemnify  Charter LLC pursuant
to Section 8 of this Agreement (the "Assumed  Obligations")  shall be assumed by
Charter LLC as of the  Contribution  Date regardless of whether such liabilities
are accrued on the books of Magellan or a Magellan  Subsidiary,  (or Charter LLC
shall  otherwise  be  responsible  for  such  debts,  liabilities,   duties  and
liabilities), including, without limitation, the following:

         (a) All such liabilities and obligations relating to the Contributed 
Assets;

         (b) All such liabilities and obligations relating to the Purchased 
Assets (as hereafter defined);

         (c) All liabilities and obligations relating to paid days off and 
accrued vacation arising prior to the Contribution Date;

         (d) All liabilities and obligations relating to sick days arising prior
to the Contribution Date;

         (e) All  such  liabilities  and  obligations  (excluding  any  payment
obligations) arising from the Consent Decrees and Settlements listed on Schedule
6.1(p) to the Real Estate Purchase and Sale Agreement;

         (f) All such liabilities and obligations arising from Charter LLC's 
participation in the contracts excluded from Section 2.1(g); and

         (g) All  such   liabilities  and   obligations   related  to  software
sublicensed  to  Charter  LLC  pursuant  to the  Franchise  Agreement  which are
licensed from third parties.

         2.4      Excluded Liabilities.  Any and all liabilities of Magellan or 
a Magellan Subsidiary arising prior to the Closing, except as set forth in 
Section 2.3(c) and (d) (the "Excluded Liabilities"), shall not be assumed by 
Charter LLC and shall remain the liabilities and

                                      - 5 -





obligations of Magellan or the relevant Magellan Subsidiary except to the extent
covered by insurance, subject to Section 8.1. Without limiting the effect of the
foregoing,  the term "Excluded  Liabilities"  includes the following liabilities
which arose or were incurred prior to the Closing:

         (a) Any  liability  or  obligation  in respect of any  federal,  state,
local,  foreign or other tax,  levy,  assessment or other  governmental  charge,
including,  without  limitation,   income,  business,   occupation,   franchise,
property,  payroll, personal property, sales, transfer,  employment,  occupancy,
franchise or withholding taxes, and any premium, including,  without limitation,
interest, penalties and additions in connection therewith;

         (b) Any liability (to the extent not covered by insurance) arising from
any  injury  to or  death of any  person  or  damage  to or  destruction  of any
property,  whether based on negligence,  breach of warranty,  strict  liability,
enterprise  liability or any other legal or equitable  theory,  arising from the
ownership or operation of the Hospitals or the services performed by Magellan or
any of its subsidiaries prior to the Closing;

         (c) The charges and taxes which Magellan has agreed to pay pursuant to 
Section 9.1 of this Agreement;

         (d) Adjustments or refunds of payments required by Medicare, Medicaid 
or any other payor as a result of payments prior to the Contribution Date; and

         (e) Fines or penalties assessed and arising out of activities occurring
prior to the Contribution Date.

         2.5 Contribution of Cash by Crescent.  On the Contribution Date, on the
terms  and  subject  to the  conditions  set  forth  in  this  Agreement  and in
consideration  for a 50% interest in Charter LLC,  Crescent shall  contribute to
Charter LLC cash in the amount of $5.0  million (the  "Crescent  Contribution"),
which is equal to the purchase price of the Purchased Assets (as defined below).



                                      - 6 -





                                   SECTION 3.

                    PURCHASE OF CERTAIN ASSETS BY CHARTER LLC

         3.1 Asset Purchase. On the Closing Date, Charter LLC shall (a) purchase
from Charter Medical  Information  Systems ("CMIS") the assets of CMIS listed on
the computer  printout (the "CMIS Assets")  delivered by Magellan to Crescent on
the date  hereof,  which  computer  printout is  separately  bound and (b) shall
purchase  from  certain  Magellan  subsidiaries  their  respective  interest  in
Alliance for Behavioral Health  ("Alliance,"  together with the CMIS Assets, the
"Purchased Assets").

         3.2 Purchase of Working Capital. On the Closing Date, Charter LLC shall
purchase (with payment to be made within two business days of purchase) from the
Magellan  Subsidiaries  the  following  assets (the  "Working  Capital  Assets")
relating to or used in the Hospitals and as the same exist on the Closing Date:

         (a) Supplies and inventory relating to the Hospitals;

         (b) Notes receivable relating to the Hospitals;

         (c) Prepaid assets relating to the Hospitals;

         (d) Prepaid expenses relating to the Hospitals;

         (e) Lease deposits paid by either Magellan or any Magellan Subsidiary 
as tenant in any lease relating to the Hospitals; and

         (f) Utility deposits relating to the Hospitals.

         3.3 Purchase  Price.  The  aggregate  purchase  price for the Purchased
Assets is $5.0 million,  and for the Working  Capital Assets is $8.0 million (in
the aggregate, the "Purchase Price"). On the Closing Date, Charter LLC shall pay
to  Magellan  or its  designated  subsidiary  cash equal to $5.0  million,  with
payment for the Working  Capital  Assets to be made at the Closing or within two
business days of the Closing Date.

         3.4 Post-Closing  Adjustment.  Within sixty (60) days after the Closing
Date,  Magellan  shall  deliver to Charter  LLC a  statement  (the  "Statement")
setting forth the net book value of the Working Capital Assets as of the Closing
Date, together with appropriate  supporting  information.  The net book value of
the Working  Capital  Assets shall be  calculated  from the books and records of
Magellan,  in accordance with past practice.  Charter LLC shall have thirty (30)
days  to  deliver  to  Magellan  any  objections  ("Objections")  it  has to the
Statement.  If Charter LLC does not submit any such  Objections,  the  Statement
shall become  final.  If Charter LLC does deliver any  Objections,  Magellan and
Charter LLC shall  negotiate in good faith to resolve the Objections as promptly
as  practical.  In the event  Magellan and Charter LLC are unable to resolve the
Objections  within  thirty  (30) days after such  Objections  are  delivered  to
Magellan,

                                      - 7 -





the matter shall be referred to Arthur Andersen LLP for final  resolution of the
Objections,  which resolution shall be binding upon the parties. Arthur Andersen
LLP shall  resolve the  Objections  as promptly as  practical,  but in any event
within  forty-five (45) days. If at any time the Objections to the Statement are
resolved in any manner set forth above,  the  Statement  shall become final (the
"Final  Statement").  If the Final  Statement  shows  that the amount of Working
Capital  Assets  as of  the  Closing  Date  are  less  than  $8.0  million  (the
difference, the "Shortfall"), Magellan shall promptly pay Charter LLC the amount
of the Shortfall.  If the Final  Statement shows that the Working Capital Assets
as of the Closing Date are greater than $8.0  million (the  "Surplus"),  Charter
LLC shall promptly pay Magellan the amount of the Surplus.


                                   SECTION 4.

                            CONSIDERATION AND CLOSING

         4.1  Amount  and  Form of  Consideration.  On the  Closing  Date (i) in
consideration  of the transfer and  contribution  of the  Contributed  Assets to
Charter  LLC,  Charter  LLC shall  deliver to the  Magellan  Subsidiaries  fifty
percent (50%) (when  aggregated  with the  membership  interest held by Magellan
affiliates) of the issued and  outstanding  capital equity  interests in Charter
LLC (the "Magellan Interest"),  and (ii) in consideration of Crescent's transfer
and contribution of the Crescent  Contribution to Charter LLC, Charter LLC shall
deliver to Crescent  fifty percent (50%) of the issued and  outstanding  capital
equity interests in Charter LLC (the "Crescent Interest").

         4.2 The Closing.

         (a) The  Contribution  shall occur on the date,  at the time and place,
and subject to the  conditions  set forth in the Real Estate  Purchase  and Sale
Agreement and herein.

         (b) On the Closing Date, Magellan, CFS, Crescent,  Charter LLC and each
Charter LLC Subsidiary (as  applicable)  shall execute and deliver the following
documents:

                  (i)      the Charter LLC Agreement;

                  (ii)     the Franchise Agreement;

                  (iii)    the Warrant Agreement;

                  (iv) the Warrant  Agreements  dated the date of this Agreement
         between Magellan and Crescent Operating (the "COI Warrant Agreements").

                  (v)  subject to obtaining any required consent, assignments of
         the contracts and leases included in the Contributed Assets, the 
         Purchased Assets and the Working Capital Assets; and


                                      - 8 -





                  (vi)  such  other  instruments  and  documents,  in  form  and
         substance  reasonably  acceptable to Magellan and  Crescent,  as may be
         necessary  to effect the closing of the  transactions  contemplated  by
         this Agreement or to evidence the Contribution.

         (c) On the Closing Date, Magellan shall execute and deliver to Charter
LLC the following:

                  (i)   Assignments,   bills  of  sale  or  other  documents  or
         instruments  of transfer to  transfer to Charter LLC all  tangible  and
         intangible  personal property included in the Contributed  Assets,  the
         Purchased  Assets and the Working Capital Assets (which documents shall
         include a general  warranty  to title of such  assets  except for those
         assets  which  are  leased,   purchased  on  an  installment  basis  or
         encumbered by an Assumed Obligation);

                  (ii)  Such instruments of assumption and other instruments or
         documents as may be necessary to effect Charter LLC's assumption of the
         Assumed Obligations; and

                  (iii) Such other  instruments or documents as may be necessary
         to  effect  the  closing  of  the  transactions  contemplated  by  this
         Agreement.

         (d) At the closing,  Crescent  shall  deliver by wire  transfer,  to an
account  number  designated  by  Charter  LLC,  the  Crescent   Contribution  in
immediately available funds.


                                   SECTION 5.

                         REPRESENTATIONS AND WARRANTIES

         5.1 Representations and Warranties of Magellan.  Magellan represents 
and warrants to Charter LLC, as of the date hereof as follows:

         (a) Organization and Power.  Magellan and the Magellan Subsidiaries are
corporations or limited liability companies duly organized, validly existing and
in good standing under the laws of their  respective  states of incorporation or
formation,  with power and authority to conduct the businesses in which they are
engaged,  to lease and own the  properties  leased or owned by them and to enter
into and perform their  obligations  under this Agreement.  Each of Magellan and
the Magellan Subsidiaries is qualified to do business and is in good standing as
a foreign  corporation or limited liability  company in each jurisdiction  where
each of them is  required  to be so  qualified,  except  where the failure to so
qualify  would  not have a  material  adverse  effect  on a  Hospital  or on the
business of the Hospitals taken as whole.

         (b)  Authorization.  The  execution  and delivery of this  Agreement by
Magellan  and the Magellan  Subsidiaries,  the  performance  by Magellan and the
Magellan  Subsidiaries of all obligations  under this Agreement and the sale and
delivery of the Contributed Assets, the Purchased Assets and the Working Capital
Assets have been duly authorized by all necessary

                                      - 9 -





corporate  action on the part of Magellan  and the Magellan  Subsidiaries.  This
Agreement  has been duly  executed  and  delivered  by Magellan and the Magellan
Subsidiaries and constitutes the legal,  valid and binding obligation of each of
them,  enforceable  against each of Magellan and the  Magellan  Subsidiaries  in
accordance  with  its  terms,   except  as  enforceability  may  be  limited  by
bankruptcy,  insolvency,  reorganization  or similar laws  affecting  creditor's
rights generally.

         (c) No  Violation.  The  execution  and  delivery of this  Agreement by
Magellan and the Magellan Subsidiaries, and the consummation by Magellan and the
Magellan  Subsidiaries of the  transactions  contemplated in this Agreement will
not  conflict  with or result in the breach or  violation of any of the terms or
conditions  of, or  constitute  (or with  notice or lapse of time or both  would
constitute) a default under, (i) any organizational documents of Magellan or any
Magellan  Subsidiary,  (ii) except as set forth on Schedule 5.1(c), any material
instrument,  contract  or other  agreement  to which  Magellan  or any  Magellan
Subsidiary is a party or by which Magellan or any Magellan  Subsidiary is bound,
(iii) any material provision of law, statute, rule or regulation of any court or
governmental  authority to which Magellan or any Magellan  Subsidiary is subject
(assuming applicable approvals and consents in Schedule 5.1(d) are obtained), or
(iv) except as set forth on Schedule 5.1(c),  any judgment,  decree,  franchise,
order,  license or permit  applicable  to Magellan or any  Magellan  Subsidiary,
except  where such  conflict,  breach,  violation  or  default  would not have a
material  adverse effect on a Hospital or on the business of the Hospitals taken
as a whole.

         (d)  Consents.  Except as set forth in  Schedule  5.1(d),  no  material
consent,  approval,  license or authorization  of any third party,  governmental
agency, commission, board or public authority is required in connection with the
execution,  delivery  and  performance  of this  Agreement  by  Magellan  or any
Magellan Subsidiary.

         (e)  Insurance.  A complete  and  accurate  schedule  of all  insurance
policies  (including  a  statement  of policy  limits and  deductibles)  held by
Magellan and the Magellan Subsidiaries relating to the Hospitals or the Business
now in force,  including,  without  limitation,  malpractice,  public liability,
property  damage  and  workers  compensation  or other  coverage,  has been made
available to Crescent.  All insurance  policies  remain in full force and effect
except  where such  failure  to remain in full force and effect  will not have a
material  adverse effect on a Hospital or on the business of the Hospitals taken
as a whole.

         (f) Litigation.  Except as set forth in Schedule  5.1(f),  there are no
lawsuits,   proceedings,   actions,   arbitrations,   claims   or   governmental
investigations,  inquiries  or  proceedings  pending  or,  to the  knowledge  of
Magellan,  threatened,  against  Magellan  or any  Magellan  Subsidiary  seeking
damages for an amount in excess of $1 million,  and there is no action,  suit or
proceeding  by any person or agency  pending or, to the  knowledge  of Magellan,
threatened  which  questions  the  legality  or  validity  of  the  transactions
contemplated hereby.

         (g) Licenses, Accreditation and Third-Party Payors.  Magellan and the
Magellan Subsidiaries hold all licenses, permits, registrations, approvals, 
certificates, contracts, consents, accreditations, approvals and franchises 
("Licenses and Permits") necessary to own or lease the Contributed Assets and to
conduct and operate the Hospitals in the manner presently operated

                                     - 10 -





and for  participation  in the  Medicare and  Medicaid  reimbursement  programs,
including,  without limitation,  all licenses,  certificates of need and permits
required by the state in which they operate and by all other appropriate  health
care facility licensing agencies,  federal,  state, county or local governmental
authorities  and  regulatory  agencies,  except  where the  failure to hold such
Licenses and Permits would not have a material  adverse  effect on a Hospital or
on the business of the Hospitals taken as a whole.

         (h) The  Business.  Upon  transfer  to Charter  LLC of the  Contributed
Assets, the Purchased Assets and the Working Capital Assets, and consummation of
the transactions  contemplated by the other Transactional Documents, (i) Charter
LLC will have or, through the Franchise Agreement or the Administrative Services
Agreement  dated the date of this  Agreement  between  Magellan and Charter LLC,
will  have  access to all  tangible  and  intangible  assets  and all  personnel
reasonably necessary to conduct a business that is substantially the same as and
that operates in accordance with the same standards of operation as the business
of the Hospitals prior to the Closing,  and (ii) Charter LLC will have the means
to provide the services specified in Section 7.9.

         (i) Contracts.  Schedule  5.1(i) contains a listing of all contracts or
series of related contracts which are material to the business of the Hospitals,
taken as a whole ("Material Contracts"), including all amendments, modifications
and side letters thereto,  currently in existence. With respect to each Material
Contract,  neither Magellan nor any Magellan Subsidiary has received a notice of
termination,  has  sent a  notice  of  termination,  is in  default,  or has any
knowledge  that  any  other  party  to such  Material  Contracts  is in  default
thereunder.

         (j) No Other Owned Hospitals.  Except as described on Schedule 5.1(j), 
no Magellan Subsidiary owns or operates any Hospital other than the Hospitals 
operated using the assets which are being contributed or sold pursuant to this 
Agreement.

         (k) Financial  Statements.  All books and records relating to operating
income and  expenses of the  Hospitals  made  available to CREELP or Crescent by
Magellan  were and  shall be those  maintained  by  Magellan  in  regard  to the
Hospitals in the normal course of business.  The audited Financial Statements as
of and for the year ended September 30, 1996 (the "1996  Financial  Statements")
furnished by Magellan to CREELP as a part of Magellan's  Deliveries  (as defined
in the Real Estate  Purchase and Sale  Agreement)  have been  prepared  from the
books and  records of Magellan in the  ordinary  course of business  and present
fairly in all material  respects the results of  operations  of Magellan for the
periods then ended and the financial condition of Magellan as of the date of the
1996 Financial Statements.

         (l) No  Material  Adverse  Change.  Since the date of  Magellan's  1996
Financial Statements,  there has been no material adverse change in the business
or results of  operations of Magellan and the Magellan  Subsidiaries  taken as a
whole or the business of the Hospitals taken as a whole.

         (m) SEC Reports.  The periodic reports filed by Magellan with the 
Securities and Exchange Commission with respect to Magellan's immediately
preceding fiscal year and any

                                     - 11 -





interim periods in its current fiscal year did not as of their  respective dates
contain any untrue  statements  of a material fact or omit to state any material
fact required to be stated therein or necessary to make the statements  therein,
in the light of the circumstances under which they were made, not misleading.

         (n) Compliance With Laws.  Magellan has delivered to Crescent or CREELP
its Proxy Statement to Shareholders  for its 1997 Annual Meeting of Shareholders
held on May 30, 1997, at which,  among other matters,  shareholders  of Magellan
approved the  transactions  which are the subject of the Transaction  Documents.
Except as  described  in the Proxy  Statement,  or in  documents  filed with the
Securities and Exchange  Commission  pursuant to applicable law, Magellan is not
aware of any  material  risk that  Magellan  is, in the conduct of the  Business
prior  to  the  closing  of the  transactions  contemplated  by the  Transaction
Documents or that Charter LLC will be, in the conduct of the Business  after the
closing  of the  transactions  contemplated  by the  Transaction  Documents,  in
violation of any applicable  federal law  specifically  designed to regulate the
healthcare  industry,  which  violation  will have a material  adverse effect on
Magellan or Charter LLC.

         5.2 Representations and Warranties of Crescent.  Crescent hereby 
represents and warrants to Charter LLC as follows:

         (a)  Authorizations,  etc. The execution and delivery of this Agreement
by Crescent and the  consummation of the transactions  contemplated  hereby have
been duly authorized by all necessary  corporate action on the part of Crescent.
This Agreement has been duly executed and delivered by Crescent and  constitutes
the valid and binding  obligation of Crescent,  enforceable  against Crescent in
accordance  with  its  terms,   except  as  enforceability  may  be  limited  by
bankruptcy,  insolvency,  reorganization or similar laws of affecting creditor's
rights generally.

         (b) No Violation. Neither the execution and delivery of this Agreement,
nor the  consummation by Crescent of the transactions  contemplated  hereby will
conflict  with or  result  in the  breach  or  violation  of any of the terms or
conditions  of, or  constitute  (or with  notice or lapse of time or both  would
constitute) a default under, (i) organizational  documents of Crescent, (ii) any
material instrument, contract or other agreement to which Crescent is a party or
by which Crescent is bound, (iii) any material  provision of law, statute,  rule
or  regulation  of any court or  governmental  authority  to which  Crescent  is
subject,  including any provision relating to the status of Crescent Real Estate
Equities  Company ("CEI") as a real estate  investment  trust for federal income
tax purposes, or (iv) any judgment, decree, franchise,  order, license or permit
applicable to Crescent, except where such conflict, breach, violation or default
would not have a material adverse effect on Crescent.

         (c)  Consents.  Except as set forth in  Schedule  5.2(c),  no  material
consent,  approval,  license or authorization  of any third party,  governmental
agency, commission, board or public authority is required in connection with the
execution, delivery and performance of this Agreement by Crescent.


                                     - 12 -





         (d) SEC  Reports.  The  Registration  Statement  on Form S-1  (File No.
333-25223) of Crescent,  as declared  effective by the  Securities  and Exchange
Commission on June 12, 1997, did not at such time contain any untrue  statements
of a material  fact or omit to state any  material  fact  required  to be stated
therein  or  necessary  to make  the  statements  therein,  in the  light of the
circumstances under which they were made, not misleading.


                                   SECTION 6.

                              CONDITIONS TO CLOSING

         6.1 Pre-Closing Conditions.  The consummation of the transactions 
contemplated by this Agreement by each party is subject to satisfaction of the
following conditions, as applicable:

         (a) Satisfaction of all of the conditions to closing set forth in the 
Real Estate Purchase and Sale Agreement;

         (b) Execution of the Franchise Agreement;

         (c) Execution of the Charter LLC Agreement;

         (d) Execution of the Warrant Agreement and the COI Warrant Agreements; 
and 
         (e) The  truth  and   accuracy  in  all   material   respects  of  the
representations  and  warranties  made  herein and  compliance  in all  material
respects  with all  covenants  and the  delivery  by each party of an  officer's
certificate so stating.

         6.2 Failure of  Conditions.  If any condition  described in subsections
(a) - (f) of Section 6.1 is not  satisfied by the Closing Date,  Crescent  shall
have the right to  terminate  this  Agreement by giving  written  notice of such
action to Magellan  and  Magellan  shall have the right to  terminate  by giving
written notice to Crescent.  Upon delivery of any such termination  notice, this
Agreement  shall  terminate,  and all  rights  and  obligations  of the  parties
hereunder  shall be released and  discharged,  except that Magellan,  on the one
hand, and Crescent, on the other hand, shall each remain liable to the other for
all damages  suffered  by the other if the  unsatisfied  condition  was due to a
breach by one party of any of the  covenants,  obligations,  representations  or
warranties of such party in this Agreement or any other failure by such party to
use its commercially  reasonable best efforts to satisfy conditions precedent to
Closing that are within the control of such party to satisfy.


                                   SECTION 7.

                            COVENANTS AND AGREEMENTS


                                     - 13 -





         Magellan covenants and agrees, and will cause each Magellan  Subsidiary
to covenant and agree, and, as applicable, Crescent and Charter LLC covenant and
agree as follows:

         7.1 Unlisted  Assets.  To the extent that,  subsequent  to Closing,  an
asset or right that is used in the  conduct  of the  business  of the  Hospitals
prior to  Closing  and that was not  listed as a  Contributed  Asset,  Purchased
Asset, Working Capital Asset or an Excluded Asset is discovered to exist, either
such asset or right shall be  conveyed to Charter LLC without  charge or Charter
LLC shall  receive the benefits of ownership of such asset through the Franchise
Agreement at no additional  charge  (except to the extent that the asset results
in an increase  in  franchise  fees due to the gross  revenue  component  of the
franchise fees);

         7.2  Assignment or Transfer of Contributed  Assets.  To the extent that
any of the  Contributed  Assets cannot be assigned or otherwise  transferred  to
Charter  LLC,  Magellan  will use its  commercially  reasonable  best efforts to
create an alternative structure that will provide Charter LLC with substantially
the same rights,  and produce  substantially  the same economic effect,  as that
which would have been  provided or produced if the  Contributed  Assets had been
transferred or assigned.

         7.3  Parties'  Commercially  Reasonable  Best  Efforts.   Magellan  and
Crescent agree to use their  commercially  reasonable  best efforts to cause all
their covenants and agreements and all conditions  precedent to the consummation
of the  Transactions  contemplated by this Agreement to be performed,  satisfied
and fulfilled.

         7.4  Insurance Reserves.  Magellan will cause Plymouth Insurance 
Company Ltd. ("Plymouth") to maintain reserves in amounts that are reasonably
actuarially adequate to cover risks insured by Plymouth associated with the 
operation of the business of the Hospitals.

         7.5 Accounts Receivable.  Charter LLC shall pay to Magellan all amounts
actually  received  by Charter  LLC in payment of  receivables  relating  to the
business of the  Hospitals,  which  receivables  were existing as of (or accrued
prior to) the  Closing  Date,  in  exchange  for a fee payable to Charter LLC by
Magellan  equal to 5% of  receivables  collected  by Charter LLC and received by
Charter LLC or Magellan.  The  receivables  will be collected in accordance with
the  procedures  (including  the level of effort to be expended)  established by
Charter Inc.  prior to the Closing Date and  disclosed to Charter LLC in writing
on or before the Closing Date. Any receivables remaining uncollected 120 days or
more after the  Closing  Date will be turned over to Magellan at its request and
Charter LLC shall have no further  obligations as to such  receivables  but will
continue collection efforts for all receivables not so delivered to Magellan.

         7.6 Brokers.  Each party  represents  and warrants to the other that it
has not  engaged,  dealt  with or  otherwise  discussed  this  Agreement  or the
Transactions with any broker, agent or finder.

         7.7 Specific Performance.  The parties acknowledge and agree that their
respective rights and obligations that will arise out of this Agreement are 
unique and irreplaceable, and that the failure of either party to perform its 
obligations under this Agreement or any of the

                                     - 14 -





Transaction  Documents  would result in damage to the other party that could not
be adequately  compensated  by a monetary  award.  Subject to Section 8.4 of the
Real Estate Purchase and Sale Agreement but notwithstanding anything else to the
contrary,  the parties therefore agree that if either party fails to perform its
obligations hereunder or with respect to any of the Transaction  Documents,  the
other party may, in  addition to all other  remedies,  seek an order of specific
performance from a court of appropriate jurisdiction.

         7.8 Third Party Consents; Further Assurances.

         (a) If  any  party  shall  fail  to  obtain  any  third  party  consent
necessary,  proper or advisable to effect the consummation of the  Contribution,
the  purchase of the  Purchased  Assets or the  purchase of the Working  Capital
Assets, such party shall use all commercially reasonable best efforts, and shall
take any such actions  reasonably  requested  by the other  parties  hereto,  to
minimize any adverse effect upon Charter LLC's business resulting, or that could
reasonably  be expected  to result  after the date  hereof,  from the failure to
obtain such consent.

         (b) In addition to the  actions,  contracts  and other  agreements  and
documents  and  other  papers  specifically  required  to be taken or  delivered
pursuant  to this  Agreement,  each of the parties  hereto  shall  execute  such
contracts and other  agreements  and documents and take such further  actions as
may be  reasonably  required or  desirable to carry out the  provisions  of this
Agreement.

         7.9 Services Agreements. Prior to closing, Magellan, in its capacity as
a joint venturer,  will or will cause any Magellan  Subsidiary  which is a joint
venturer in any Joint Venture that owns or operates a domestic  Hospital,  which
Joint  Ventures  are set forth on  Schedule  7.9 and  defined  in the  Franchise
Agreement as "Existing  Joint  Ventures"  (a "Joint  Venture"),  to enter into a
services  agreement with Charter LLC for each such Hospital owned or operated by
a Joint  Venture,  pursuant  to which  Charter LLC will  perform,  to the extent
agreed by joint venture partners,  all of Magellan's obligations under the Joint
Venture  agreement in exchange for the payment to Charter LLC by Magellan of all
distributions  and fees paid to Magellan  by or on behalf of the Joint  Venture.
Magellan will use its commercially reasonable best efforts to obtain the consent
of Magellan's  joint  venture  partners to the  performance,  by Charter LLC, of
Magellan's  obligations  under  the  Joint  Venture  Agreements.   Each  service
agreement,  as referred to in this Section  7.9,  shall be approved by Crescent,
which approval shall not be  unreasonably  withheld.  The services  agreement(s)
shall continue in effect until termination of the Facilities Lease.

         7.10 Employee Benefits. The parties agree to establish employee benefit
plans for the  employees  of Charter LLC  providing  for overall  benefits in an
amount similar to the benefits  provided by the employee benefit plans in effect
on the date hereof at Magellan and the Magellan Subsidiaries.

         7.11 Title to Property.  Magellan and the Magellan  Subsidiaries  shall
convey at the Closing pursuant to the form of bill of sale attached as Exhibit I
to the Real Estate Purchase and Sale Agreement, (i) good and marketable title to
the Contributed Assets, the Purchased Assets

                                     - 15 -





and the Working Capital Assets (to Charter LLC or such Charter LLC Subsidiary as
Charter LLC directs) owned by Magellan or a Magellan  Subsidiary,  subject to no
liens,  encumbrances  or  material  claims  whatsoever,  except for the  Assumed
Obligations  and except for any liens,  encumbrances  and claims  related to the
purchase of property on an installment basis in the ordinary course of business,
and (ii)  all of their  rights  and  interest  in the  Contributed  Assets,  the
Purchased  Assets,  and the  Working  Capital  Assets  leased by  Magellan  or a
Magellan Subsidiary.

         7.12 Right to Inspect.  Magellan  shall grant  Charter LLC the right to
inspect any and all business  records  retained by Magellan  pursuant to Section
2.2(z)  during  reasonable  business  hours and upon  reasonable  prior  notice.
Charter LLC shall grant Magellan access to any business  records  transferred to
Charter LLC during reasonable business hours and upon reasonable prior notice.


                                   SECTION 8.

                                 INDEMNIFICATION

         8.1 Indemnification  Obligations of Magellan.  Magellan shall indemnify
and hold harmless Charter LLC and its subsidiaries and affiliates, each of their
respective officers, directors,  partners, employees, agents and representatives
and  each  of the  permitted  successors  and  assigns  of any of the  foregoing
(collectively,  the  "Charter LLC  Indemnified  Parties")  from,  against and in
respect  of  any  and  all  claims,  liabilities,  obligations,  losses,  costs,
expenses, penalties, fines and other judgments (at equity or at law) and damages
(including,   without   limitation,   amounts  paid  in  settlement,   costs  of
investigation  and  reasonable  attorneys'  fees  and  expenses)  (collectively,
"Claims  and  Damages")  arising  out of or  relating  to (i) any  breach of any
representation, warranty, covenant, agreement or undertaking made by Magellan in
this Agreement or in any certificate,  agreement,  exhibit or schedule delivered
pursuant to this  Agreement,  or (ii) the  ownership,  lease or operation of the
Hospitals and  attributable  to events  arising prior to the Closing  (including
claims made after Closing  related to events  occurring  prior to Closing) other
than  Assumed  Obligations  or  liabilities  to the extent  they are  covered by
existing insurance,  provided, however, that if the insurer does not pay insured
amounts under the terms of the policies,  Magellan  shall  indemnify the Charter
LLC Indemnified Parties for such debts, liabilities and obligations.  The Claims
and Damages of the Charter LLC Indemnified Parties described in this Section 8.1
as to which the Charter LLC Indemnified  Parties are entitled to indemnification
are   hereinafter   collectively   referred   to  as   "Charter   LLC   Losses."
Notwithstanding anything to the contrary contained herein,  Magellan's indemnity
obligations  hereunder  will  not  extend  to  claims  arising  out  of  willful
misconduct or fraud of Charter LLC.

         8.2  Indemnification  Obligations  of Charter  LLC.  Charter  LLC shall
indemnify and hold harmless  Magellan and its  subsidiaries  and  affiliates and
each of their respective officers,  directors,  partners,  employees, agents and
representatives  and each of the permitted  successors and assigns of any of the
foregoing  (collectively,  the "Magellan Indemnified Parties") from, against and
in respect of any and all Claims and  Damages  arising out of or relating to any
debts,  liabilities  and  obligations  relating to (i) the  ownership,  lease or
operation of the Hospitals and

                                     - 16 -





attributable  to events  which  arise  after  the  Closing  or (ii) the  Assumed
Obligations.  The  Claims  and  Damages  of  the  Magellan  Indemnified  Parties
described in this Section 8.2 as to which the Magellan  Indemnified  Parties are
entitled  to  indemnification  are  hereinafter   collectively  referred  to  as
"Magellan  Losses."  Notwithstanding  anything to the contrary contained herein,
Charter LLC's indemnity  obligations hereunder will not extend to claims arising
out of willful misconduct or fraud of Magellan.

         8.3  Indemnification Procedure.

         (a)  Promptly  after  receipt by a Charter LLC  Indemnified  Party or a
Magellan  Indemnified  Party (each an "Indemnified  Party") of notice by a third
party of any  complaint or the  commencement  of any action or  proceeding  with
respect to which  indemnification  is being sought  hereunder,  such Indemnified
Party  shall  notify  Charter  LLC,  if  the  Indemnified  Party  is a  Magellan
Indemnified  Party,  or  Magellan,  if the  Indemnified  Party is a Charter  LLC
Indemnified  Party  (the  "Indemnifying  Party"),  of such  complaint  or of the
commencement of such action or proceeding;  provided,  however, that the failure
to so notify the  Indemnifying  Party shall not relieve the  Indemnifying  Party
from  liability for such claim arising  otherwise  than under this Agreement and
such failure to so notify the Indemnifying  Party shall relieve the Indemnifying
Party from liability which the Indemnifying  Party may have under this Agreement
with  respect to such claim if, but only if, and only to the extent  that,  such
failure to notify  the  Indemnifying  Party  results  in the  forfeiture  by the
Indemnifying   Party  of  rights  and  defenses   otherwise   available  to  the
Indemnifying Party with respect to such claim. The Indemnifying Party shall have
the right,  upon written notice to the Indemnified  Party, to assume the defense
of such action or  proceeding,  including the  employment of counsel  reasonably
satisfactory to the Indemnified Party and the payment of the reasonable fees and
disbursements  of such counsel.  In the event,  however,  that the  Indemnifying
Party  declines or fails to assume the defense of the action or proceeding or to
employ counsel reasonably  satisfactory to the Indemnified Party, in either case
in a timely manner,  then such Indemnified Party may employ counsel to represent
or defend it in any such action or proceeding and the  Indemnifying  Party shall
pay the reasonable fees and disbursements of such counsel as incurred; provided,
however,  that the Indemnifying  Party shall not be required to pay the fees and
disbursements  of more  than one  counsel  for all  Indemnified  Parties  in any
jurisdiction  in any single  action or  proceeding.  In any action or proceeding
with respect to which indemnification is being sought hereunder, the Indemnified
Party or the Indemnifying  Party,  whichever is not assuming the defense of such
action, shall have the right to participate in such litigation and to retain its
own  counsel  at  such  party's  own  expense.  The  Indemnifying  Party  or the
Indemnified Party, as the case may be, shall at all times use reasonable efforts
to keep the  Indemnifying  Party or the  Indemnified  Party, as the case may be,
reasonably  apprised of the status of the defense of any action,  the defense of
which it is  maintaining  and to cooperate  in good faith with the  Indemnifying
Party or the Indemnified  Party, as the case may be, with respect to the defense
of any such action.

         (b) No Indemnified  Party may settle or compromise any claim or consent
to the entry of any  judgment  with  respect to which  indemnification  is being
sought hereunder  without the prior written consent of the  Indemnifying  Party,
unless such settlement,  compromise or consent includes an unconditional release
of the Indemnifying Party from all liability arising out of such

                                     - 17 -





claim. An Indemnifying  Party may not,  without the prior written consent of the
Indemnified Party, settle or compromise any claim or consent to the entry of any
judgment with respect to which  indemnification is being sought hereunder unless
such settlement,  compromise or consent includes an unconditional release of the
Indemnified  Party  from all  liability  arising  out of such claim and does not
contain  any  equitable  order,  judgment  or term which in any manner  affects,
restrains or interferes with the business of the Indemnified Party or any of the
Indemnified Party's respective affiliates.

         (c) In the event an  Indemnified  Party  shall claim a right to payment
pursuant to this Agreement,  such Indemnified Party shall send written notice of
such claim to the appropriate  Indemnifying Party. Such notice shall specify the
basis for such claim.  As promptly as possible after the  Indemnified  Party has
given such notice, such Indemnified Party and the appropriate Indemnifying Party
shall  establish  the merits  and  amount of such  claim (by  mutual  agreement,
litigation,  arbitration  or  otherwise)  and,  within five business days of the
final  determination  of the merits and amount of such claim,  the  Indemnifying
Party shall deliver to the Indemnified Party  immediately  available funds in an
amount equal to such claim as determined hereunder.

         (d)  Liability  Limits.  To the extent any claim for Charter LLC Losses
against Magellan is based upon the alleged  inaccuracy of any  representation or
warranty contained in Section 5 of this Agreement,  then, for a period beginning
on the Closing  Date and ending two years later,  Magellan  shall only be liable
for such  Charter  LLC Losses  solely to the extent  that any such  Charter  LLC
Losses  exceed  in  the  aggregate  in  any  one  year,   one  million   dollars
($1,000,000.00).  Beginning two years after the Closing Date,  Magellan shall be
liable for such  Charter LLC Losses  solely to the extent that any such  Charter
LLC Losses  exceed in the  aggregate  during such  period,  ten million  dollars
($10,000,000.00);  provided, however, that to the extent a claim for Charter LLC
Losses is not based on the inaccuracy of a representation or warranty  contained
in  Section 5 of this  Agreement,  then such  claim  shall not be subject to the
limitations  above,  nor shall  the  amount of any such  Charter  LLC  Losses be
included  with other  Charter  LLC Losses in  determining  whether  such  basket
amounts have been reached.

         (e) Claim Periods. Indemnification obligations under this Section 8 for
pre-closing and post-closing debts,  liabilities or obligations and for a breach
of  representations,  warranties or covenants shall survive until  expiration of
the applicable statute of limitations.


                                   SECTION 9.

                                  MISCELLANEOUS

         9.1 Fees and Expenses;  Transfer Costs.  Fees and expenses  incident to
the negotiation, preparation and execution of this Agreement and the performance
of the Contribution (including attorneys', accountants', financial advisors' and
other  advisors' fees and  disbursements)  shall be borne by the party incurring
the expense.  Magellan shall pay all sales, transfer and other recording charges
and conveyance taxes in connection with the transfer of the

                                     - 18 -





Contributed  Assets,  the  Purchased  Assets and the Working  Capital  Assets to
Charter LLC and in  connection  with the  transfer of any licenses or permits to
Charter LLC.

         9.2 Notices.  Whenever  any notice is required or permitted  hereunder,
such notice shall be in writing and (a) sent by certified mail, postage prepaid,
return receipt requested,  (b) given by established overnight commercial courier
for delivery on the next  business  day with  delivery  charges  prepaid or duly
charged,  (c) personally  hand-delivered  or (d) sent by facsimile  transmission
with  confirmation of receipt received,  to the applicable  address or facsimile
number set forth below:

                  (i)      if to Crescent:

                           Gerald W. Haddock, Esq.
                           President and Chief Operating Officer
                           Crescent
                           777 Main Street
                           Suite 2100
                           Fort Worth, Texas 76102
                           Facsimile: (817) 878-0429

                           with a copy to:

                           David M. Dean, Esq.
                           Senior Vice President, Law
                           Crescent
                           777 Main Street
                           Suite 2100
                           Fort Worth, Texas 76102
                           Facsimile: (817) 878-0429

                           Wendelin A. White, Esq.
                           Shaw, Pittman, Potts & Trowbridge
                           2300 N Street, N.W.
                           Washington, D.C. 20037
                           Facsimile: (202) 663-8007


                                     - 19 -





                  (ii)     if to Magellan:

                           Steve J. Davis, Esq.
                           Executive Vice President,
                             Administrative Services and General Counsel
                           3414 Peachtree Road, N.E.
                           Suite 1400
                           Atlanta, Georgia 30326
                           Facsimile: (404) 814-5793

                           with a copy to:

                           Robert W. Miller, Esq.
                           King & Spalding
                           191 Peachtree Street
                           Atlanta, Georgia 30303-1763
                           Facsimile:(404) 572-5100

Notices which are mailed shall be deemed  effective upon receipt.  Notices which
are hand- delivered shall be deemed effective upon tender to a natural person at
the address  shown.  Notices which are  delivered by overnight  courier shall be
deemed given on the next business day after  delivery to such  courier.  Notices
which are  delivered by facsimile  transmission  shall be deemed  received  upon
electronic confirmation of delivery.

         9.3 Entire  Agreement.  This  Agreement and the  Transaction  Documents
(together  with the exhibits and  schedules  hereto and thereto)  supersede  all
prior agreements and understandings,  both oral and written, between the parties
with respect to the subject matter hereof, all of which are null, void and of no
force or effect.

         9.4 Waivers and  Amendments.  This Agreement may be amended,  modified,
superseded,  canceled, renewed or extended, and the terms and conditions of this
Agreement  may be waived,  only by a written  instrument  signed by the  parties
hereto or, in the case of a waiver, by the party waiving compliance.

         9.5 Governing Law. This Agreement  shall be governed by the laws of the
State  of  Delaware,  without  regard  to  the  application  of  choice  of  law
principles.  The rule that an Agreement  should be  construed  against the party
drafting it shall not apply to this Agreement  because all parties have played a
significant role in negotiating and drafting this Agreement.

         9.6 Severability.  If any term, covenant or condition of this Agreement
is held to be  invalid or  unenforceable  in any  respect,  such  invalidity  or
unenforceability shall not affect any other provision,  and this Agreement shall
be  construed  as if such  invalid  or  unenforceable  provision  had never been
contained in this Agreement.


                                     - 20 -





         9.7 Binding Effect;  Benefit. This Agreement shall inure to the benefit
of and be binding upon the parties  hereto and their  respective  successors and
assigns. Nothing in this Agreement,  expressed or implied, is intended to confer
on any person other than the parties hereto or their  respective  successors and
assigns, any rights, remedies,  obligations or liabilities under or by reason of
this Agreement.

         9.8 No Assignment.  This Agreement may not be assigned without the
prior written consent of the other party.

         9.9 Arbitration.

         (a) Following   Closing,   any  controversy,   claim  or  question  of
interpretation  arising  out of or  relating  to this  Agreement  or the  breach
thereof  shall  be  finally  settled  by  arbitration  in  Delaware,  under  the
then-effective   Commercial   Arbitration  Rules  of  the  American  Arbitration
Association as modified by this Agreement, and judgment on the award rendered by
the  arbitrators  may be entered  in any court  having  jurisdiction.  The award
rendered  by the  arbitrators  shall be final and binding on the parties and not
subject to further appeal.  Such  arbitration can be initiated by written notice
by either party (the "Claimant") to the other party, which notice shall identify
the  Claimant's  selected  arbitrator.  The party  receiving  such  notice  (the
"Respondent")  shall  identify  its  arbitrator  within ten (10)  business  days
following its receipt of such notice.  The  arbitrator  selected by the Claimant
and the arbitrator  selected by the Respondent  shall,  within ten (10) business
days of their appointment,  select a third neutral arbitrator. In the event that
they are unable to do so,  either  party may  request the  American  Arbitration
Association to appoint the third neutral arbitrator.  The arbitrators shall have
the authority to award any remedy or relief that a court in Delaware could order
or grant, including, without limitation,  specific performance of any obligation
created under this  Agreement,  the issuance of injunctive or other  provisional
relief,  or  the  imposition  of  sanctions  for  abuse  or  frustration  of the
arbitration  process.  The arbitration  award will be in writing and specify the
factual and legal basis for the award.

         (b) The arbitrators shall instruct the non-prevailing  party to pay all
costs of the proceedings, including the fees and expenses of the arbitrators and
the  reasonable  attorneys'  fees and expenses of the prevailing  party.  If the
arbitrators  determine that there is not a prevailing party, each party shall be
instructed to bear its own costs and to pay one-half of the fees and expenses of
the arbitrators.

         9.10  Counterparts.  This  Agreement  may be  executed  in two or  more
counterparts,  each of which shall be deemed an original  but all of which taken
together shall constitute one and the same instrument.

         9.11 Exhibits and Schedules. The exhibits and schedules delivered or to
be delivered  pursuant to this  Agreement are a part of this Agreement as if set
forth in full within the Agreement.


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         9.12 Headings.  The headings in this Agreement are for reference
purposes only and shall not in any way affect the meaning or interpretation of
this Agreement.



                                     - 22 -




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

                             CRESCENT OPERATING, INC.


                             By: \s\ Jeffrey L. Stevens
                                 -------------------------------------
                                    Name:      Jeffrey L. Stevens
                                    Title:     Chief Financial Officer,
                                               Treasurer and Secretary


                             MAGELLAN HEALTH SERVICES, INC.


                             By: \s\ Linton C. Newlin
                                 -------------------------------------
                                    Name:      Linton C. Newlin
                                    Title:     Vice President and Secretary






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