Formal Resignation Letter Sample. Start with a two weeks notice letter.This will serve as a formal, written documentation of your intent to leave and your transition timeline. This notarized letter is my formal resignation from the Church of Jesus Christ of Latterday Saints and is effective immediately. In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. Learn how to write a professional resignation letter with our step-by-step guide and easy to use templates. Explore why a good resignation letter is important and how to write it, and check out our free resignation letter examples. Step 1: Review the available forms in the column to the right and download the appropriate PDF. Fill out the PDF and save a copy. On this site you will find a sample resignation letter.