The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. Sample Format for a Character Letter.If you have been asked to write a character letter, this simple template may be a useful guide. Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. State your issue clearly. 3. Avoid name calling, such as, " My lawyer was no good. Please accept my apology for taking up your time today. More specifically, explain how you met him and how well you feel you know him. In a perfect world, the decision to do or not do this should be cleared with your lawyer beforehand. Express your belief that the parent is the most suitable guardian for their children.