How To Write A Guardian Letter Sample . Write the names of the people involved. Be specific about dates of the custody (from and to), and outline any limitations of the guardianship if you feel necessary, such as not being able to leave. Guardianship Letter Template Sample from template-sample.blogspot.com While you are away, the person you appoint as guardian can fill in and support you until you’re back. [3] then, you should also include the date two lines down from your address. Brown, parent of stephanie brown, grant temporary guardship to michael clayton.