A character letter plays a dual role. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things.The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. Speaking as an ex-lawyer, don't write such a letter to the judge. Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide. You start it "Dear Judge". While there are many suggestions here, what's missing is a sample character letter or a form character letter. At your trial, the judge will hear from both sides and decide if you have to move out and if you owe your landlord money.