Click "forms" and enter the form numbers below (all forms begin with AOC-E-__). 1. Fill out the Application for Probate and Letters (AOC-E-201). 2.This guide is intended to be used as a reference for the very beginning of the process: obtaining letters testamentary ("Letters") for a named personal. This video will provide a step-by-step guide for completing the application and oath to open a full estate for a decedent who left a will. This part of the booklet explains where to sue, which complaint form to use, how to fill in the proper legal forms, how to file the claim, and how to get the. Please fill out this form using Adobe Reader or Internet Explorer. You can get a fill-in-the-blank affidavit form to fill out. (N. Grant Letters of Administration. The Administration must be opened in the County where the decedent resided as documented on the Certified Death Certificate. They must fill out all required fields.