This letter is issued to evidence the appointment, qualification and authority of. (name) as guardian for the above-named protected person.This page is about appointing a guardian for a child. It focuses on when everyone agrees on the guardian. If the person is not able to understand their rights due to a disability, a judge can appoint a guardian to help them with legal decisions. This document is required for ALL family law cases. You must complete the form and attach ALL of the required documents applicable to your case. Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. Some courts allow you to mail or fax your written request to change your guardianship. Other courts may need you give it to the court in person.