Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide.A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. This character reference letter template can be used to ask for leniency in a sentencing hearing. A character reference letter offers employers a third party's perspective on a candidate's attributes and character traits. Such a letter should include any of the person's good qualities. If he is a generous person, volunteers, etc. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. The letter should state the author's opinion of the defendant's character and any achievements or community work.