In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample 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.Use the judge's title properly, but only once in the salutation. Customer: I need a sample letter asking a judge for probation at my son's readiness hearing (he's 20 years old). Dear Judge (Name of the Judge):. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. Write the date and the judge's address in the top left. I would like to thank you for taking the time to read my letter to you. The judge could determine that you were an unfit parent and may not grant you custody or visitation rights in the future. Examples: "Trade Relations", "Export Controls".