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?Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide. Writing a character letter for a judge can be a daunting task. Here are nine essential tips for writing an effective sentencing letter. The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. File a Request for Order (form FL-300) or a Responsive Declaration to Request for Order (form FL-320), you can also submit documents or other evidence. A character letter plays a dual role.