Texas Estates Code - EST § 1203.006. Requirements for Discharge

(1) the resignation application has been heard;

(2) the exhibit and final account or report required under Section 1203.001 has been examined, settled, and approved;  and

(3) the guardian has satisfied the court that the guardian has:

(1) accepting the resignation;

(2) discharging the guardian;

(3) canceling the letters issued to the guardian;  and

(4)  if the guardian is under bond, discharging and releasing the sureties on the guardian's bond.