Government Code §2254.102

(a) This subchapter applies only to a contingent fee contract for legal services entered into by a state governmental entity. (b) The legislature by this subchapter is providing, in accordance with Section 44 , Article III, Texas Constitution, for the manner in which and the situations under which a state governmental entity may compensate a public contractor under a contingent fee contract for legal services. (c) This subchapter does not apply to a contract: (1) with a state agency to collect an obligation under Section 2107.003 (b), (c), or (c-1); or (2) for legal services entered into by an institution of higher education under Section 153.006 , Education Code. (d) This subchapter does not apply to a contract for legal services entered into by the Teacher Retirement System of Texas if the services are paid for from money that is not appropriated from the general revenue fund, including funds of a trust administered by the retirement system.