Tex. Est. Code § 1157.007
A defect of form or a claim of insufficiency of a presented exhibit or voucher is considered waived by the guardian of the estate unless a written objection to the form, exhibit, or voucher is:
Added by Acts 2011, 82nd Leg., R.S., Ch. 823 (H.B. 2759), Sec. 1.02, eff. January 1, 2014.