Tex. Nat. Res. Code § 51.195
(a) If no good-faith claimant exists or if no good-faith claimant exercises a preferential right within the applicable period, the applicant has a preferential right to purchase or lease the land determined to be vacant on or before the 60th day after the date:
(b) If a good-faith claimant exercises the claimant's preferential right in the land determined to be vacant, the applicant has a preferential right to either:
(d) An applicant who exercises a preferential right under Subsection (a) or (b)(2) may purchase or lease the land or an interest in the land:
(3) in accordance with the law in effect on the date the application is filed.
Acts 2005, 79th Leg., Ch. 874 (S.B. 1103), Sec. 1, eff. June 17, 2005.