Texas Estates Code - EST § 1106.003. Renewal of Letters of Guardianship

(a) The clerk may not renew letters of guardianship relating to the appointment of a guardian of the estate until the court receives and approves the guardian's annual account.

(b) The clerk may not renew letters of guardianship relating to the appointment of a guardian of the person until the court receives and approves the guardian's annual report.

(c) If a guardian's annual account or annual report is disapproved or is not timely filed, the clerk may not issue further letters of guardianship to the delinquent guardian unless ordered by the court.

(d) Except as otherwise provided by this subsection, regardless of the date the court approves an annual account or annual report for purposes of this section, a renewal of letters of guardianship relates back to the date the original letters were issued.  If the accounting period has been changed as provided by this title, a renewal relates back to the first day of the accounting period.