Document:

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                                                                   Exhibit 10.11

                             CROSS-DEFAULT AGREEMENT

         THIS CROSS-DEFAULT AGREEMENT is made as of the 12th day of January,
2000 by and among (i) BALANCED CARE AT STAFFORD, INC., a Delaware corporation
(the "Potomac Point Lessee"); (ii) NEW MEDITRUST COMPANY LLC, a Delaware limited
liability company (the "Lessor"), successor by merger to Meditrust Company LLC,
a Delaware limited liability company (the "Original Lessor"); (iii) MEDITRUST
MORTGAGE INVESTMENTS, INC., a Delaware corporation ("MMI") and (iv) BALANCED
CARE CORPORATION, a Delaware corporation ("BCC").

                               W I T N E S S E T H

         WHEREAS, the Lessor is the holder of the landlord's interest under that
certain Facility Lease Agreement, dated as of June 30, 1998, by and between the
Original Lessor and the Potomac Point Lessee relating to a certain adult care
residence located in Stafford County, Virginia (the "Potomac Point Lease");

         WHEREAS, BCC, the sole shareholder of the Potomac Point Lessee,
guaranteed the Lease Obligations (as defined under the Potomac Point Lease)
pursuant to that certain Guaranty, dated as of June 30, 1998 executed for the
benefit of the Original Lessor and its successors and assigns (the "Potomac
Point Guaranty");

         WHEREAS, MMI is the holder of the lender's interest under the "Loan
Documents" as such term is defined under that certain Loan Agreement, dated as
of August 6, 1996, as amended (the "Hawthorn Loan Agreement"), by and among (i)
MMI and (ii) Hawthorn Health Properties, Inc., a California corporation,
National Care Centers of Hermitage, Inc., a Missouri corporation, National Care
Centers, Inc., a Missouri corporation, National Care Centers of Lebanon, Inc., a
Missouri corporation, Springfield Retirement Village, Inc., a Missouri
corporation, National Care Centers of Nixa, Inc., a Missouri corporation,
National Care Centers of Springfield, Inc., a Missouri corporation and Mt.
Vernon Park Care Center West, Inc., a Missouri corporation (the "Hawthorn
Borrowers");

         WHEREAS, at the request of BCC, MMI (an affiliate of the Lessor) was
requested to consent to certain transactions contemplated by that certain Asset
Purchase Agreement, dated as of October 15, 1999, as amended, by and among BCC
(on behalf of itself and certain subsidiaries) and Christian Health Care of
Missouri, Inc. (the "BCC/CHC Purchase Agreement");

         WHEREAS, MMI was willing to consent to the transactions contemplated by
the BCC/CHC Purchase Agreement, subject to the satisfaction of certain
conditions, including, without limitation, the execution and delivery by BCC of
a guaranty of the Loan Obligations (as defined under the Hawthorn Loan
Agreement) and the execution and delivery of this Agreement; and
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         WHEREAS, BCC and its subsidiary, the Potomac Point Lessee, will receive
direct and indirect benefits from the consummation of the transactions
contemplated by the BCC/CHC Purchase Agreement.

         NOW, THEREFORE, in order to induce MMI to consent to the transactions
contemplated by the BCC/CHC Asset Purchase Agreement, and in consideration
therefor, and for One Dollar ($1.00) and other good and valuable consideration,
the receipt and sufficiency of which are acknowledged, and in consideration of
the mutual covenants set forth herein, the parties hereto hereby agree as
follows:

         1. From the date hereof until the earlier to occur of (a) the
Termination Date (as defined under that certain Termination Agreement, of even
date herewith by and among MMI, the Lessor, the Hawthorn Borrowers, BCC, Dixon
Management, Inc. and the Potomac Point Lessee) or (b) such time, if any, as the
Leased Property (as defined under the Potomac Point Lease) is transferred to the
Buyer (as hereinafter defined) or any of the Buyer's Title Designees (as
hereinafter defined) pursuant to that certain Option Agreement, dated as of
December 30, 1999, by and among the Lessor, IPC Advisors S.a.r.l., a Luxembourg
corporation and BCC (the "Option Agreement"), the parties hereto acknowledge and
agree that the occurrence of an Event of Default as defined under the Hawthorn
Loan Agreement shall constitute an Event of Default under Potomac Point Lease.
Notwithstanding the foregoing, in the event that, (i) solely as a consequence of
any Seller Default (as defined under the Option Agreement), the Buyer or any of
the Buyer's Title Designees do not acquire the Leased Property in accordance
with the terms of the Option Agreement and that is the only reason that the
Leased Property is not transferred to the Buyer or any of the Buyer's Title
Designees in accordance with the terms of the Option Agreement [recognizing that
a failure to transfer the Leased Property to the Buyer or any of the Buyer's
Title Designees in accordance with the terms of the Option Agreement may result
from other causes, such as a determination by the Buyer to refrain from
exercising any or all of its Option Rights (as defined under the Option
Agreement) and/or a Buyer Default (as defined under the Option Agreement)] and
(ii) the Buyer or the Buyer's Title Designees have acquired all other portions
of the Land (as defined under the Option Agreement) not affected by any Seller
Default, then, upon the occurrence of the events described in the foregoing
clauses (i) and (ii) (the "Termination Event"), this Agreement shall terminate.

         As used herein, the terms "Land", "Buyer" and "Title Designees" shall
have the same meanings as ascribed to such terms under the Option Agreement.

         2. This Agreement shall be deemed to amend the Potomac Point Lease
solely as expressly set forth herein and, as amended hereby, the Potomac Point
Lessee hereby ratifies, approves and confirms the Potomac Point Lease, in every
respect as of the date hereof and agrees that the Potomac Point Lease is valid,
binding and in full force and effect.

                                      -2-
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         3. This Agreement shall not be deemed to amend, abridge, limit, modify,
release, terminate or otherwise affect any of the provisions of the Potomac
Point Guaranty. Without limiting the foregoing, BCC hereby confirms that the
Potomac Point Guaranty remains in full force and effect, unaffected by the
execution and delivery of this Agreement.

         4. This Agreement shall be binding on and inure to the benefit of the
parties hereto and their respective successors and assigns.

         5. This Agreement shall remain in full force and effect until the
earlier to occur of (i) the conveyance of all of the Land to the Buyer or the
Buyer's Title Designees in accordance with the terms of the Option Agreement,
(ii) the Termination Event, (iii) the complete payment and performance of the
Loan Obligations or (iv) the complete payment and performance of the Lease
Obligations.

         6. This Agreement shall be construed, and the rights and obligations of
the parties hereto shall be determined, in accordance with the laws of the
Commonwealth of Massachusetts. BCC and the Potomac Point Lessee hereby consent
to personal jurisdiction in the courts of the Commonwealth of Massachusetts and
the United States District Court for the District of Massachusetts as well as to
the jurisdiction of all courts from which an appeal may be taken from the
aforesaid courts, for the purpose of any suit, action or other proceeding
arising out of or with respect to this Agreement.

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

            [The remainder of this page is intentionally left blank]

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         IN WITNESS WHEREOF, the parties have executed this Agreement under seal
as of the day and year first above written.

WITNESS:                      BALANCED CARE AT STAFFORD, INC., a
--------                      Delaware corporation

/s/ Jaynelle D. Covert        By: /s/ Robin L. Barber
Name: Jaynelle D. Covert          Name: Robin L. Barber
                                  Title: Vice President and Secretary

                              BALANCED CARE CORPORATION, a
                              Delaware corporation

/s/ Jaynelle D. Covert        By: /s/Robin L. Barber
Name: Jaynelle D. Covert          Name: Robin L. Barber
                                  Title: Senior Vice President and Legal Counsel
                                         & Assistant Secretary

                              NEW MEDITRUST COMPANY LLC, a Delaware
                              limited liability company

/s/ Annemarie Wasniewski      By: /s/Michael S. Benjamin
Name: Annemarie Wasniewski        Name: Michael S. Benjamin
                                  Title: Senior Vice President

                              MEDITRUST MORTGAGE INVESTMENTS, INC., a
                              Delaware corporation

/s/ Annemarie Wasniewski      By: /s/Michael S. Benjamin
Name: Annemarie Wasniewski        Name: Michael S. Benjamin
                                  Title: Senior Vice President

                                      -4-<PAGE>
                                                      PAGE 8

                                                          Exhibit 4.1

  SECURITIES ISSUED UPON EXERCISE OF THIS OPTION HAVE NOT BEEN REGISTERED
  UNDER THE SECURITIES ACT OF 1933 ("THE ACT"), AND ARE "RESTRICTED
  SECURITIES" AS THAT TERM IS DEFINED IN RULE 144 UNDER THE ACT.  THE
  SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD OR OTHERWISE TRANSFERRED
  EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT OR
  PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE ACT, THE
  AVAILABILITY OF WHICH IS TO BE ESTABLISHED TO THE SATISFACTION OF THE
  COMPANY.

                                RENTECH, INC.

                     NONSTATUTORY STOCK OPTION AGREEMENT

       THIS STOCK OPTION AGREEMENT, hereinafter referred to as the "Option"
  or the "Agreement," is entered into on -------------------------, -----,
  between RENTECH, INC., a Colorado corporation ("the Company"), and -----
  --------- -------------------------------------------- ("the Optionee"),
  whose address is ------------------------------------------------------
  ----------------------------------------------------------------------.

       Pursuant to the terms of the Rentech, Inc. 1998 Stock Option Plan
  ("Plan"), the Company hereby grants a nonstatutory stock option to
  purchase -------------------- shares of common stock of the Company, $.01
  par value per share ("Common Stock"), to the Optionee at the price and in
  all respects subject to the terms, definitions and provisions of the
  Agreement ("Option").

       1.  Option Price.  The option price is $---------- for each share.
  For purposes of this Agreement, but only if and to the extent applicable,
  the fair market value of such common stock shall be determined as
  follows:  (i) if the common stock is listed on a national securities
  exchange or admitted to unlisted trading privileges on such exchange,
  then the market value shall be the last reported sale price of the common
  stock on the composite tape of such exchange, or, if no such sale is made
  on any trading day, the average closing bid and asked prices for such day
  on the composite tape of such exchange; or (ii) if the common stock is
  not so listed or admitted to unlisted trading privileges, the market
  price shall be the average of the last reported bid and asked prices
  reported by the National  Association of Securities Dealers Quotation
  System (or if not quoted on NASDAQ, by the National Quotation Bureau,
  Inc. or other reporting medium); or (iii) otherwise the market price
  shall be an amount not less than book value determined in such reasonable
  manner as may be prescribed by the board of directors of the Company,
  such determination to be final and binding upon the Optionee.

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                                                      PAGE 9

       2.  Option Period.  The option period during which this Option may
  be exercised shall be ---------- years from date of this grant, expiring
  at 12:00 o'clock p.m. on -------------------------, ----------, Denver
  time.  The Option granted shall be void if not exercised during the
  option period.

       3.  Exercise of Option.  Unless the Option is terminated as provided
  pursuant to this Agreement, an Optionee may exercise this option for up
  to, but not in excess of, the amounts of shares subject to the Option.
  The Option may be exercised, in whole or in part, and at any time and
  from time to time within its term but it shall not be exercisable after
  the expiration of ----- years from the date on which it was granted.

       (a)  Right to Exercise.  Options shall be exercisable only during
  the option period by the Optionee:

            (i)  while the Optionee is in "continuous employment with the
  Company;" provided, however, if the Optionee's employment is terminated
  by Optionee for cause or by the Company without cause, the Optionee shall
  have a period of three months from the date Optionee's employment
  terminates in which to exercise the Option to the extent the Option was
  exercisable at the time of termination, but in no event later than the
  expiration of the option period.  If the Optionee should die during this
  three-month period, the Option may be exercised by the person or persons
  to whom the rights under the Option passed by will or the laws of descent
  and distribution to the same extent and during the same period the
  Optionee could have exercised the Option had Optionee not died.  In the
  event the Optionee should terminate employment by the Company without
  cause or the Company should terminate Optionee's employment with cause,
  then all unexercised Options granted to Optionee shall be forfeited and
  canceled effective upon such termination.  For purposes of this section,
  "continuous employment with the Company" shall mean the absence of any
  interruption or termination of employment by the Company.  Continuous
  employment shall not be considered interrupted in the case of transfer of
  the duties of the Optionee among the Company and any of its Subsidiary
  Corporations or during leave of absence for a company-approved purpose.

  Except as otherwise provided, the option period shall terminate upon the
  Optionee's termination of employment if that date is earlier than the
  term of the Option.

            (ii)  If the Optionee should die or become permanently totally
  disabled while employed by the Company, any Option or unexercised portion
  thereof, to the extent exercisable at the time of the Optionee's death or
  disability, may be exercised by Optionee, the Optionee's conservator or
  legal guardian or by the person or persons to whom the Optionee's rights
  under the Option passed by will or the laws of descent and distribution
  not later than twelve months after the Optionee's death or not later than
  twelve months after the Optionee's disability, but in no event later than
  the expiration of the option period.

  <PAGE>
                                                      PAGE 10

       (b)  Change in Control.  In the event that the Company or
  substantially all of its assets are sold or there is a change in control
  of the Company, as evidenced by a change of fifty percent (50%) or more
  in the ownership of the issued and outstanding shares of the Company's
  common stock or memberships on the Company's board of directors in any
  one transaction or series of related transactions, this Option shall,
  upon such occurrence, become exercisable in full, notwithstanding any
  other provisions of this Agreement to the contrary.

       (c)  Method of Exercise.  This Option shall be exercisable by a
  written notice delivered to the Company which shall:

            (i)  State the election to exercise the Option, the number of
  shares in respect of which it is being exercised (which must be in
  multiples of one hundred shares), the person in whose name the stock
  certificate or certificates for such shares of common stock is to be
  registered, with that person's address and Social Security number (or if
  more than one, the names, addresses and Social Security numbers of such
  persons);

            (ii) Contain such representations and agreement as to the
  holder's investment intent with respect to such shares of Common Stock as
  may be satisfactory to the Company's counsel;

            (iii)  Be signed by the person or persons entitled to exercise
  the Option and, if the Option is being exercised by any person or persons
  other than the Optionee, be accompanied by proof, satisfactory to counsel
  for the Company, of the right of such person or persons to exercise the
  Option.

       Payment of the purchase price of any shares with respect to which
  the Option is being exercised shall be by cash or certified check,
  previously acquired shares of the Common Stock having a fair market value
  equal to the option price, or previously acquired shares of Common Stock
  having a fair market value less than the option price, plus cash or
  certified check for the balance of the option price, and shall be
  delivered with the notice of exercise.  The certificate or certificates
  for shares of Common Stock as to which the Option shall be exercised
  shall be registered in the name of the person or persons exercising the
  Option.

       (d)  Restrictions on Exercise.  As a condition to exercise of this
  Option, the Company may require the person exercising this Option to make
  any representation and warranty to the Company as may be required by any
  applicable law or regulation.

       4.  Nontransferability of Option.  This Option may not be
  transferred in any manner and may be exercised during the lifetime of the
  Optionee only by the Optionee and after death of the Optionee by the
  person or persons to whom the Optionee's rights under the Option passed
  by will or the laws of descent and distribution.

  <PAGE>
                                                      PAGE 11

       5.  Adjustments Upon Changes in Capitalization.  Whenever there is
  any change in the outstanding shares of Common Stock of the Corporation
  by reason of a stock dividend or split, recapitalization,
  reclassification, or other similar corporate change, the aggregate number
  of shares that can thereafter be purchased, and the option price per
  share, under each Option that has been previously granted and not
  exercised, and every number of shares used in determining whether a
  particular Option is grantable thereafter, shall be appropriately
  adjusted.  The adjustment shall be made by the Company's Board of
  Directors, and their determination shall be conclusive; provided,
  however, that fractional shares shall be rounded to the nearest whole
  share.  In any such case, the number and kind of shares that are subject
  to any Option (including any Option outstanding after termination of
  employment) and the option price per share shall be proportionately and
  appropriately adjusted without any change in the aggregate option price
  to be paid therefor upon exercise of the Option.

       6.  Notices.  Each notice relating to this Agreement shall be in
  writing and delivered in person or by certified mail to the proper
  address.  Each notice shall be deemed to have been given on the date it
  is received.  Each notice to the Company shall be addressed to it at its
  principal office, attention of the Secretary.  Each Optionee or other
  person or persons then entitled to exercise the Option shall be addressed
  to the Optionee or such other person or persons at the Optionee's address
  set forth in the heading of this Agreement.  Anyone to whom a notice may
  be given under this Agreement may designate a new address by notice to
  that effect.

       7.  Benefits of Agreement. This Agreement shall inure to the benefit
  of and be binding upon each successor of the Company.  All obligations
  imposed upon the Optionee and all rights granted to the Company under
  this Agreement shall be binding upon the Optionee's heirs, legal
  representatives and successors.  This Agreement shall be the sole and
  exclusive source of any and all rights which the Optionee, and heirs,
  legal representatives, or successors of Optionee may have in respect to
  the plan or any options or Common Stock granted or issued thereunder,
  whether to Optionee or any other person.

       8.  Incorporation of Plan.  This Agreement is made subject to the
  provisions of the Plan, the terms of which are incorporated herein by
  reference to the extent they apply to nonstatutory stock options.
  Capitalized terms used in the Plan shall have the same meaning, when used
  in this Agreement, as in the Plan.  In the event of conflict between
  provisions of the Plan and provisions of this Agreement, the provisions
  of the Plan shall control.

       9.  Resolution of Disputes.  Any dispute or disagreement which
  should arise under, or as a result of, or in any way relate to, the
  interpretation, construction or applicability of this Agreement will be
  determined by the stock option committee appointed by the by the Board of
  Directors of the Company.  Any such determination made by the Committee
  shall be final, binding, and conclusive for all purposes.

       10.  Approval of Stockholders.  If an option is granted by this
  Agreement prior to approval of the stockholders of the Plan, the option
  granted shall be null and void unless stockholder approval is obtained
  within twelve months after the Plan was adopted.

  <PAGE>
                                                      PAGE 12

       11.  Investment Representation; Legend.  Optionee represents and
  agrees that all shares of Common Stock purchased by Optionee under this
  Agreement will be purchased for investment purposes only and not with a
  view to distribution or resale.  The Company may require that an
  appropriate legend be inscribed on the face of any certificate issued
  under this Agreement, indicating that transfer of the shares is
  restricted, and may place an appropriate stop transfer order with the
  Company's transfer agent with respect to such shares.

       12.  No Guarantee.  This Agreement shall in no way restrict the
  right of the Company to terminate Optionee's relationship with it,
  whether as an Employee or Consultant.

       IN WITNESS WHEREOF, the Company and the Optionee have caused this
  Agreement to be executed as of the day, month and year first above
  written.

  OPTIONEE:                             RENTECH, INC.

  -----------------------------     By:  -----------------------------
                                         Dennis L. Yakobson, President

  <PAGE>
                                                      PAGE 13

                                RENTECH, INC.

                  NOTICE OF EXERCISE OF STOCK OPTION ISSUED

  To:  Stock Option Committee
       Rentech, Inc.

       I hereby exercise my Option dated ---------------------- to purchase
  -------------------- shares of $.01 par value common stock of the Company
  at the option exercise price of $------------ per share.  Enclosed is a
  certified or cashier's check in the total amount of $------------, or
  payment in such other form as the Company has specified and agreed to
  accept, which is described at the bottom of this notice.

       I represent to you that I am acquiring said shares for investment
  purposes and not with a view to any distribution thereof.  I understand
  that my stock certificate may bear an appropriate legend restricting the
  transfer of my shares and that a stop transfer order may be placed with
  the Company's transfer agent with respect to such shares.

       I request that my shares be issued in the name of:

       ------------------------------------------------------------
                (Print your name in the form in which you wish
                        to have the shares registered)

                          -------------------------
                          (Social Security Number)

       ------------------------------------------------------------
                             (Street and Number)

       ------------------------------------------------------------
       (City)                      (State)               (Zip Code)

  Dated: --------------------, 200--.

                        Signature:  ------------------------------

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