Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide.The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. The letter should include the name of the court your case was filed in and the case number at the top right. Put the caption (St. v. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. First, introduce yourself and explain your relationship to your boyfriend and how long you've been together. Customer: I am looking for samples of character references to a judge for my son. Lawyer's Assistant: What state are you in? The letter should first and foremost include a statement of the writer's relationship with the person seeking expungement.