Tex. Est. Code § 254.005
(a) A provision in a will that would cause a forfeiture of or void a devise or provision in favor of a person for bringing any court action, including contesting a will, is enforceable unless in a court action determining whether the forfeiture clause should be enforced, the person who brought the action contrary to the forfeiture clause establishes by a preponderance of the evidence that:
Added by Acts 2011, 82nd Leg., R.S., Ch. 1338 (S.B. 1198), Sec. 2.26, eff. January 1, 2014.
Acts 2013, 83rd Leg., R.S., Ch. 351 (H.B. 2380), Sec. 2.01, eff. January 1, 2014.
Acts 2015, 84th Leg., R.S., Ch. 949 (S.B. 995), Sec. 17, eff. September 1, 2015.