Tex. Est. Code § 361.106
If, after letters of administration have been issued, it is discovered that the decedent left a lawful will, the court shall revoke the letters of administration and issue proper letters to any persons entitled to the letters.
Added by Acts 2009, 81st Leg., R.S., Ch. 680 (H.B. 2502), Sec. 1, eff. January 1, 2014.