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. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. The letter should first and foremost include a statement of the writer's relationship with the person seeking expungement. Craft a compelling expungement letter to a judge with our free template and expert tips to clear your record today! The court clerk will give you a reference number and will fill in the blank.