A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. Sample Format for a Character Letter.If you have been asked to write a character letter, this simple template may be a useful guide. Learn how to write a compelling character letter for a judge from an aunt. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. Be totally honest, talk about the persons positive traits. What you know they have done to better themselves while incarcerated. If you've been asked to write to the judge, use our sample character reference letter and fill-in-the-blank template. What's a character reference letter?