Writing a character letter for a judge can be a daunting task. Here are nine essential tips for writing an effective sentencing letter.Introduce yourself in the opening paragraph. Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide. 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? I am writing this letter on behalf of a family member mine who is presently before you on criminal charges and is due to be sentenced shortly. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document.