Document:

<PAGE>   1

                     IN THE UNITED STATES BANKRUPTCY COURT

                          FOR THE DISTRICT OF DELAWARE

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IN RE                             |
                                  |     CHAPTER 11
                                  |
MARINER POST-ACUTE NETWORK,       |     CASES NOS. 00-113 (MFW)
INC., ET AL.,                     |     THROUGH 00-214 (MFW)
                                  |
                                  |
                                  |     (JOINTLY ADMINISTERED)
                  DEBTOR.         |
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                   ORDER AUTHORIZING AN AMENDMENT TO DEBTORS'
                      DEBTOR IN POSSESSION LOAN AGREEMENT

         Upon the motion (the "Motion") of the debtors and debtors in
possession in the above-captioned cases (the "Debtors"), requesting entry of an
order authorizing them to enter into, and perform under, the Third Amendment
(the "Amendment") to the Revolving Credit and Guaranty, dated as of January 18,
2000, as previously amended on February 16, 2000 and March 20, 2000 (the "DIP
Credit Agreement") in substantially form heretofore filed with this Court; and
due and proper notice of the Motion having been given; and it appearing that
sufficient cause exists for granting the requested relief and that the relief
requested under the Motion is in the best interests of the Debtors' estates and
creditors, it is hereby:

         ORDERED that, pursuant to Sections 105, 363, and 364 of the Bankruptcy
Code, the Motion is granted, and the Debtors are authorized to entered into,
and perform under, the Amendment; and it is further

         ORDERED that, to the extent the Final Order (as defined in the Motion)
approving the DIP Credit Agreement relies upon the definition of any term as
used in the DIP Credit agreement

<PAGE>   2

(including but not limited to the definition of "Termination Date," which the
DIP Credit Agreement defines as the earlier of, among other things, the
"Maturity Date"), the Final Order shall be deemed modified to the extent the
definition of such term is modified by the Amendment; and it is further

         ORDERED, that, as to Prudent Buyer Appeal Money only: (i) this Order
shall be subject to the Court's decision on the motions to dismiss filed by the
Defendants in the adversary proceeding captioned Novacare Holdings, Inc. v.
Mariner Post-Acute Network, Inc., et al., Adversary Proceeding No. 00-1577
(MFW) (the "NCH Action") to the same extent as the Final Order and the first
day and interim orders approving the DIP Credit Agreement and granting adequate
protection in connection therewith (collectively, the "DIP Orders"); and (ii)
the entry of this Order shall not impact, impair, or in any way affect either
the ruling on the motions to dismiss or the relief being sought by Novacare
Holdings, Inc. ("NCH") in the NCH Action beyond any impact, impairment, or any
other effect of the DIP Orders on the motions to dismiss or the relief being
sought by NCH in the NCH action; and it is further

         ORDERED that, other than specifically provided herein or in the
Amendment, all terms and conditions set forth in the DIP Credit Agreement and
the Final Order remain in full force and effect.

Date:    January  11, 2001
         Wilmington, Delaware

                                                 /s/ Mary F. Walrath
                                                 ------------------------------
                                                 The Honorable Mary F. Walrath
                                                 United States Bankruptcy Judge<PAGE>   1

                              EIGHTH AMENDMENT TO
                     DEBTOR-IN-POSSESSION CREDIT AGREEMENT

                                January 19, 2001

         Reference is made to that certain Debtor-In-Possession Credit
Agreement dated as of January 20, 2000 (as heretofore amended, the "DIP CREDIT
AGREEMENT"), by and among Mariner Health Group, Inc., a Delaware corporation
("MHG"), as debtor and debtor-in-possession, and each of MHG's subsidiaries
listed on the signature pages thereof, each as debtor and debtor-in-possession
(each such subsidiary and MHG individually referred to herein as a "BORROWER"
and, collectively, on a joint and several basis, as the "BORROWERS"); the
Lenders listed on the signature pages thereof; First Union National Bank, as
syndication agent; PNC Capital Markets, Inc. and First Union Securities, Inc.,
as co-arrangers; and PNC Bank, National Association, as collateral agent and
administrative agent (in such capacity, "ADMINISTRATIVE AGENT"), and as an
issuing bank for Letters of Credit thereunder. Capitalized terms used herein
without definition herein shall have the meanings assigned to such terms in the
DIP Credit Agreement and the Borrowing Order.

         Borrowers and Lenders desire to amend the DIP Credit Agreement to (i)
extend the maturity date and reduce the Commitments under the DIP Credit
Agreement, (ii) make certain amendments to Section 2.06 of the DIP Credit
Agreement to include a utilization fee, (iii) make certain amendments to
Section 5.01 of the DIP Credit Agreement with respect to certain financial
reporting requirements of the Borrowers, and (iv) make certain amendments to
Section 5.10 of the DIP Credit Agreement with respect to the filing of a plan
of reorganization and disclosure statement for the Borrowers. The Lenders are
prepared to do so solely on the terms and conditions herein.

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

         First, the Borrowers and the undersigned Lenders hereby agree that the
definition of "Stated Maturity Date" is hereby amended by deleting the
reference to "January 19, 2001" contained therein and substituting therefor
"July 19, 2001."

         Second, the Borrowers and the undersigned Lenders hereby agree that
the following definitions shall be inserted in Section 1.1 in alphabetical
order:

                  "EIGHTH AMENDMENT" means that certain Eighth Amendment to
         Debtor-In-Possession Credit Agreement dated as of January 19, 2001, by
         and among the Borrowers, the Collateral Agent, the Administrative
         Agent, the Syndication Agent and the Lenders party thereto.

                  "EIGHTH AMENDMENT EFFECTIVE DATE" has the meaning assigned to
that term in the Eighth Amendment.

<PAGE>   2

                  "NEW COMMITMENT SCHEDULE" means the Commitment Schedule
         attached to the Eighth Amendment as Annex A.

         Third, the Borrowers and the undersigned Lenders hereby agree that
Section 2.01(a) is hereby amended by adding the following sentence at the end
thereof:

                  "Notwithstanding anything to the contrary contained herein,
         on and as of the Eighth Amendment Effective Date the Tranche A
         Commitment of each Lender shall be adjusted so that after giving
         effect to such adjustment, the Tranche A Commitments of all Lenders
         shall equal $25,000,000 and the Tranche A Commitment of each Lender
         shall be as set forth on the New Commitment Schedule."

         Fourth, the Borrowers and the undersigned Lenders hereby agree that
Section 2.01(b) is hereby amended by adding the following sentence at the end
thereof:

                  "Notwithstanding anything to the contrary contained herein,
         on and as of the Eighth Amendment Effective Date the Tranche B
         Commitment of each Lender shall be reduced to zero."

         Fifth, the Borrowers and the undersigned Lenders hereby agree that
Section 2.06 of the DIP Credit Agreement is hereby amended by adding a new
subparagraph (e) at the end thereof as follows:

                  "(e) Utilization Fee. On and after the Eighth Amendment
Effective Date, the Borrowers shall pay to the Administrative Agent, for
distribution to the Lenders in accordance with each Lender's Percentage, a
utilization fee calculated daily and equal to the product of .25% per annum
(expressed as a daily rate) multiplied by the average daily excess of the
Outstanding Tranche A Amount over $5 million, and such amount shall be payable
in arrears on the last Business Day of each month after the Eighth Amendment
Effective Date and on the Commitment Termination Date."

         Sixth, the Borrowers and the undersigned Lenders hereby agree that
Section 5.01(q) of the DIP Credit Agreement is hereby amended by deleting such
paragraph in its entirety and by substituting the following paragraph as a new
Section 5.01(q):

                  "(q) promptly after the same is available but in no event
         later than 5:00 p.m. (Eastern Time) (i) (y) on the fifteenth day of
         every calendar month commencing February 15, 2000, and (z) five
         Business Days after a Financial Officer of MHG has delivered a
         statement pursuant to Section 5.01(r)(ii)(B) indicating that the
         Borrowers believe that the projections and financial information set
         forth in the Cash Budget do not represent reasonable good faith
         estimates as of the date of such statement, a supplement to the Cash
         Budget setting forth, for the period commencing the week immediately
         following the date such delivery is required and ending thirteen weeks
         later (or on the Stated Maturity Date, if earlier), a consolidated
         cash forecast for the Borrowers in substantially the form of the Cash
         Budget and in substance satisfactory to Required Lenders and (ii) on
         the fifth Business Day after the end of each week a report containing
         for such week (A) beginning cash balance, (B) cash receipts, (C) cash
         disbursements and (D) ending cash balance.

                                       2
<PAGE>   3

         Seventh, the Borrowers and the undersigned Lenders hereby agree that
Section 5.10 of the DIP Credit Agreement is hereby amended by deleting the
reference to "December 18, 2000" contained therein and substituting therefor
"February 20, 2001."

         As of the Eighth Amendment Effective Date, without any further action
by any Borrower or Lender:

                  (i)      Each of Bank One, N.A. and Comerica Bank (each a
         "NON-CONTINUING LENDER") shall no longer be a Lender under the DIP
         Credit Agreement, and, other than those rights and obligations of a
         Lender which survive and continue pursuant to the terms of the DIP
         Credit Agreement following the termination of a Lender's status as a
         Lender, the rights and obligations of each Non-Continuing Lender under
         the DIP Credit Agreement and the other Financing Documents shall be
         terminated.

                  (ii)     Each Person designated as a Continuing Lender on the
         signature pages hereof (each, a "CONTINUING LENDER") shall remain a
         Lender for all purposes of the DIP Credit Agreement and shall continue
         to be vested with all the rights, powers, privileges and duties of a
         Lender under the DIP Credit Agreement.

                  (iii)    The Administrative Agent agrees to cause each of the
         Non-Continuing Lenders to cancel and return all of its Notes to the
         Administrative Agent, and to cause each of the Continuing Lenders to
         cancel and return its Tranche B Note to the Administrative Agent, all
         for re-delivery by the Administrative Agent to MHG as promptly as
         practicable.

         On and after the Eighth Amendment Effective Date (as defined below),
each reference in the DIP Credit Agreement to "this Agreement", "hereunder",
"hereof", "herein" or words of like import referring to the DIP Credit
Agreement, and each reference in the other Financing Documents to the "DIP
Credit Agreement", "thereunder", "thereof" or words of like import referring to
the DIP Credit Agreement, shall mean and be a reference to the DIP Credit
Agreement as amended through the date thereof, including by this Eighth
Amendment to Debtor-In-Possession Credit Agreement (this "EIGHTH AMENDMENT";
the DIP Credit Agreement, as so amended, being the "AMENDED AGREEMENT").

         Without limiting the generality of the provisions of Section 11.05 of
the DIP Credit Agreement, the amendment set forth above shall be limited
precisely as written, and nothing in this Eighth Amendment shall be deemed to
prejudice any right or remedy that the Administrative Agent or any Lender may
now have or may have in the future under or in connection with the DIP Credit
Agreement or any of such other Financing Documents. Except as specifically
amended by this Eighth Amendment, the DIP Credit Agreement and such other
Financing Documents shall remain in full force and effect and are hereby
ratified and confirmed.

         In order to induce Lenders to enter into this Eighth Amendment, each
Borrower, by its execution of a counterpart of this Eighth Amendment,
represents and warrants that, subject to obtaining the approval of the Court to
the execution, delivery and performance of this Eighth Amendment, (a) such
Borrower has the corporate or other power and authority and all material
Governmental Approvals required to enter into this Eighth Amendment and to
carry out the

                                       3
<PAGE>   4

transactions contemplated by, and perform its obligations under, the Amended
Agreement, (b) the execution and delivery of this Eighth Amendment and the
performance of the Amended Agreement have been duly authorized by all necessary
corporate or other action on the part of such Borrower, (c) the execution and
delivery by such Borrower of this Eighth Amendment and the performance by such
Borrower of the Amended Agreement do not and will not contravene, or violate,
any Applicable Laws (including an applicable order of the Court) or any
provision of its Organizational Documents, or constitute a default under any
agreement or other instrument binding upon it (which default, in the case of
such instruments or agreements, would give rise to rights enforceable on a
post-Petition Date basis) or result in or require the imposition of any Liens
(other than the Liens created by the Collateral Documents) on any of its
assets, (d) the execution and delivery by such Borrower of this Eighth
Amendment and the performance by such Borrower of the Amended Agreement do not
and will not require any action by or in respect of, or filing with, any
governmental body, agency or official, (e) this Eighth Amendment and the
Amended Agreement have been duly executed and delivered by such Borrower and
constitute the valid and binding obligations of such Borrower, enforceable in
accordance with their respective terms, except as may be limited by general
principles of equity, and (f) after giving effect to this Eighth Amendment, no
event has occurred and is continuing or will result from the consummation of
the transactions contemplated by this Eighth Amendment that would constitute a
Default.

         This Eighth Amendment may be executed in any number of counterparts
and by different parties hereto in separate counterparts, each of which when so
executed and delivered shall be deemed an original, but all such counterparts
together shall constitute but one and the same instrument. This Eighth
Amendment shall become effective (the date of such effectiveness being the
"EIGHTH AMENDMENT EFFECTIVE DATE") as of January 19, 2001 provided the
following conditions shall have been met: (a) the Borrowers and Continuing
Lenders shall have executed counterparts of this Eighth Amendment and the
Borrowers and the Administrative Agent shall have received written or
telephonic notification of such execution and authorization of delivery
thereof, (b) the Administrative Agent shall have received from the Borrowers,
for distribution to the undersigned Continuing Lenders in accordance with their
respective Percentages, an amendment fee of 1.00% of the aggregate Tranche A
Commitments of such Lenders after giving effect to this Eighth Amendment, (c)
the Court shall have entered an order, in form and substance satisfactory to
the Lenders, approving this Eighth Amendment and the payment of such amendment
fee, (d) the Administrative Agent shall have received evidence satisfactory to
it that all outstanding statements of O'Melveny & Myers LLP, Buchanan
Ingersoll, P.C., Kennedy Covington Lobdell & Hickman, L.L.P., Houlihan Lokey
Howard & Zukin, Deloitte Consulting and Care Consulting, L.L.C. that are
received by MHG prior to 12:00 Noon (New York City time) on January 6, 2001
have been paid in full, and (e) the Borrowers shall have paid to the
Non-Continuing Lenders all fees and interest accrued and owing to them pursuant
to the terms of the DIP Credit Agreement through the Eighth Amendment Effective
Date.

         THIS EIGHTH AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES
HEREUNDER SHALL BE GOVERNED BY, AND SHALL BE CONSTRUED AND ENFORCED IN
ACCORDANCE WITH, THE INTERNAL LAWS OF THE STATE OF NEW YORK (INCLUDING WITHOUT
LIMITATION SECTION 5-1401 OF THE GENERAL OBLIGATIONS LAW OF THE STATE OF NEW
YORK), WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

                                       4
<PAGE>   5

BORROWERS:              MARINER HEALTH GROUP, INC.
                        AID & ASSISTANCE, INC.
                        BEECHWOOD HERITAGE RETIREMENT COMMUNITY, INC.
                        BRIDE BROOK NURSING & REHABILITATION CENTER, INC.
                        COMPASS PHARMACY SERVICES, INC.
                        COMPASS PHARMACY SERVICES OF MARYLAND, INC.
                        COMPASS PHARMACY SERVICES OF TEXAS, INC.
                        CYPRESS NURSING FACILITY, INC.
                        LONG RIDGE NURSING AND REHABILITATION CENTER, INC.
                        LONGWOOD REHABILITATION CENTER, INC.
                        MARINER HEALTH AT BONIFAY, INC.
                        MARINER HEALTH CARE, INC.
                        MARINER HEALTH CARE OF ATLANTIC SHORES, INC.
                        MARINER HEALTH CARE OF DELAND, INC.
                        MARINER HEALTH CARE OF FORT WAYNE, INC.
                        MARINER HEALTH CARE OF GREATER LAUREL, INC.
                        MARINER HEALTH CARE OF INVERNESS, INC.
                        MARINER HEALTH CARE OF LAKE WORTH, INC.
                        MARINER HEALTH CARE OF MACCLENNY, INC.
                        MARINER HEALTH CARE OF METROWEST, INC.
                        MARINER HEALTH CARE OF NASHVILLE, INC.
                        MARINER HEALTH CARE OF NORTH HILLS, INC.
                        MARINER HEALTH CARE OF ORANGE CITY, INC.
                        MARINER HEALTH CARE OF PALM CITY, INC.
                        MARINER HEALTH CARE OF PINELLAS POINT, INC.
                        MARINER HEALTH CARE OF PORT ORANGE, INC.
                        MARINER HEALTH CARE OF SOUTHERN CONNECTICUT, INC.
                        MARINER HEALTH CARE OF TOLEDO, INC.
                        MARINER HEALTH CARE OF TUSKAWILLA, INC.
                        MARINER HEALTH CARE OF WEST HILLS, INC.
                        MARINER HEALTH CENTRAL, INC.
                        MARINER HEALTH HOME CARE, INC.
                        MARINER HEALTH OF FLORIDA, INC.
                        MARINER HEALTH OF JACKSONVILLE, INC.
                        MARINER HEALTH OF MARYLAND, INC.
                        MARINER HEALTH OF ORLANDO, INC.
                        MARINER HEALTH OF PALMETTO, INC.
                        MARINER HEALTH OF SEMINOLE COUNTY, INC.
                        MARINER HEALTH OF TAMPA, INC.
                        MARINER HEALTH RESOURCES, INC.
                        MARINER PHYSICIAN SERVICES, INC.
                        MARINER PRACTICE CORPORATION
                        MARINER - REGENCY HEALTH PARTNERS, INC.
                        MARINERSELECT STAFFING SOLUTIONS, INC.
                        MARINER SUPPLY SERVICES, INC.
                        MEDREHAB, INC.
                        MEDREHAB OF INDIANA, INC.
                        MEDREHAB OF LOUISIANA, INC.

                                   S-5
<PAGE>   6

                        MEDREHAB OF MISSOURI, INC.
                        MERRIMACK VALLEY NURSING & REHABILITATION CENTER, INC.
                        METHUEN NURSING & REHABILITATION CENTER, INC.
                        MHC REHAB. CORP.
                        MHC TRANSPORTATION, INC.
                        MYSTIC NURSING & REHABILITATION CENTER, INC.
                        NATIONAL HEALTH STRATEGIES, INC.
                        PARK TERRACE NURSING & REHABILITATION CENTER, INC.
                        PENDLETON NURSING & REHABILITATION CENTER, INC.
                        PINNACLE CARE CORPORATION
                        PINNACLE CARE CORPORATION OF HUNTINGTON
                        PINNACLE CARE CORPORATION OF NASHVILLE
                        PINNACLE CARE CORPORATION OF SENECA
                        PINNACLE CARE CORPORATION OF SUMTER
                        PINNACLE CARE CORPORATION OF WILLIAMS BAY
                        PINNACLE CARE CORPORATION OF WILMINGTON
                        PINNACLE CARE MANAGEMENT CORPORATION
                        PINNACLE PHARMACEUTICALS, INC.
                        PINNACLE PHARMACEUTICAL SERVICES, INC.
                        PINNACLE REHABILITATION, INC.
                        PINNACLE REHABILITATION OF MISSOURI, INC.
                        PRISM CARE CENTERS, INC.
                        PRISM HEALTH GROUP, INC.
                        PRISM HOME CARE COMPANY, INC.
                        PRISM HOME CARE, INC.
                        PRISM HOME HEALTH SERVICES, INC.
                        PRISM HOSPITAL VENTURES, INC.
                        PRISM REHAB SYSTEMS, INC.
                        REGENCY HEALTH CARE CENTER OF SEMINOLE COUNTY, INC.
                        SASSAQUIN NURSING & REHABILITATION CENTER, INC.
                        TAMPA MEDICAL ASSOCIATES, INC.
                        THE OCEAN PHARMACY, INC.
                        TRI-STATE HEALTH CARE, INC.
                        WINDWARD HEALTH CARE, INC.

                        BY:
                           ----------------------------------------------------
                           Boyd P. Gentry
                           Vice President for each of the foregoing Borrowers

                                      S-6
<PAGE>   7

                        IHS REHAB PARTNERSHIP, LTD.

                        BY: MARINER HEALTH CARE OF NASHVILLE, INC.,
                            its General Partner

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                        MARINER HEALTH PROPERTIES IV, LTD.

                        BY: MARINER HEALTH OF FLORIDA, INC.,
                            its General Partner

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                        MARINER HEALTH PROPERTIES VI, LTD.

                        BY: MARINER HEALTH OF FLORIDA, INC.,
                            its General Partner

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                        SEVENTEENTH STREET ASSOCIATES LIMITED PARTNERSHIP

                        BY: TRI-STATE HEALTH CARE, INC., its General Partner

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                                      S-7
<PAGE>   8

                        ALLEGIS HEALTH AND LIVING CENTER AT HERITAGE HARBOUR,
                        L.L.C.

                        BY: MARINER HEALTH OF MARYLAND, INC.,
                            its General Partner

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                        AGENTS AND LENDERS: PNC BANK, NATIONAL ASSOCIATION,
                        Individually as a Continuing Lender and as
                        Administrative Agent, Collateral Agent and LC
                        Issuing Bank

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                        FIRST UNION NATIONAL BANK,
                        individually as a Continuing Lender and as
                        Syndication Agent

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                        CREDIT LYONNAIS NEW YORK BRANCH,
                        individually as a Continuing Lender

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                        BANK AUSTRIA CREDITANSTALT-CORPORATE FINANCE,
                        individually as a Continuing Lender

                        By:
                           ----------------------------------------------------

                        Name:
                             --------------------------------------------------

                        Title:
                              -------------------------------------------------

                                      S-8
<PAGE>   9

                                    ANNEX A

                            NEW COMMITMENT SCHEDULE

<TABLE>
<CAPTION>
                                                             TRANCHE A LOAN          PERCENTAGE
              LENDER                                           COMMITMENT               (%)
              ------                                         --------------          ----------

<S>                                                          <C>                    <C>
PNC Bank, National Association                               $11,073,369.57         44.29347826
First Union National Bank                                    $11,073,369.56         44.29347826
Credit Lyonnais New York Branch                               $1,766,304.35         7.065217396
Bank Austria Creditanstalt-Corporate Finance                  $1,086,956.52         4.347826084
                                                             --------------         -----------
TOTAL                                                        $25,000,000.00              100.00%
                                                             ==============         ===========
</TABLE>

                                      S-9

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