THIS INDENTURE, made this day of. A trust amendment form is a legal document you use to make changes to your revocable trust.It isn't meant to change your trust document as a whole. An original RP-5217 form must accompany all deeds and correction deeds upon filing with the Recording Officer. A filing fee is also required. A trust amendment is a legally binding document designed to modify one or more provisions within your living trust. To transfer a property title deed in Texas, you will need a properly prepared deed as follows: The deed must be in writing. For other questions you may have, please contact the Office of the Tax Assessor-Collector at 210-335-2251 for personalized assistance. Bexar County Certificate of Trust Form. Fill in the blank form formatted to comply with all recording and content requirements.