A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. I am writing this letter on behalf of a former student of mine who is presently before you on criminal charges and is due to be sentenced shortly.Dear judge (name), I am writing to ask for leniency in the sentencing of my husband, because (then give all your reasons and speak only from your heart). In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample letter. Explain exactly what you want, when you say you want leniency. You may want a shorter sentence, if you know you are going to prison. Address a piece of professional letterhead to the judge at the top of the letter. The letter should include the name of the court your case was filed in and the case number at the top right. Put the caption (St. v. Positive Qualities: The letter should focus on your positive qualities.