Tex. Government Code § 601.008: UNAUTHORIZED OFFICERS.

(a) An officer or court of this state or of a municipality may not make, order, allow, or audit payment of a person's claim for compensation, fees, perquisites, or services as an officer of the state or of the municipality unless the person:

(1) has been:

(A) lawfully elected as the officer and determined to be elected to the office by the canvass conducted of the election for the office;

(B) appointed as the officer by the lawful appointing authority; or

(C) adjudged to be the officer by a state court of competent jurisdiction; and

(2) has qualified as the officer under law.

(b) A person who has not been elected or appointed to an office or has not qualified for office, as prescribed by Subsection (a), is not entitled to:

(1) receive payment for services as the officer; or

(2) exercise the powers or jurisdiction of the office.

(c) The official acts of a person who claims a right to exercise the power or jurisdiction of an office contrary to this section are void.

Added by Acts 1993, 73rd Leg., ch. 268, Sec. 1, eff. Sept. 1, 1993.