Sec. 254.004.  CONTRACTS CONCERNING WILLS OR DEVISES; JOINT OR RECIPROCAL WILLS.  (a)  A contract executed or entered into on or after September 1, 1979, to make a will or devise, or not to revoke a will or devise, may be established only by:
(1)  a written agreement that is binding and enforceable; or
(2)  a will stating:
(A)  that a contract exists; and
(B)  the material provisions of the contract.
(b)  The execution of a joint will or reciprocal wills does not constitute by itself sufficient evidence of the existence of a contract.
Added by Acts 2009, 81st Leg., R.S., Ch. 680 (H.B. 2502), Sec. 1, eff. January 1, 2014.