Court Specific Forms. Request for Letters: Only the appointed personal representative or Attorney of Record may request letters.Here, learn some basics about estate administration, with a focus on who can be an estate administrator and what an estate administrator does. This set provides coverage of every aspect of probate law and estate and trust administration in Texas. It includes sample forms and letters. For excellent and caring representation at reasonable rates, contact us today. Fill out my online form. How does one get Letters Testamentary? On this page, you should fill in the location that the document is to be filed with, either the trial court or the Court of Appeals. You can research most probate records on the Dallas records search tool.