Tex. Est. Code § 1151.003
A guardian, or an heir, executor, administrator, or assignee of a guardian, may not dispute the right of the ward to any property that came into the guardian's possession as guardian of the ward, except property:
Added by Acts 2011, 82nd Leg., R.S., Ch. 823 (H.B. 2759), Sec. 1.02, eff. January 1, 2014.