Learn how to write a resignation letter with a notice period. Dear (HR Manager's Name),.Download Pennsylvania Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. "I received your request that I submit my resignation in writing. Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. 2) Write a resignation letter. Secondly, it's important to avoid any confusion around when your last day is. In the opening paragraph, state that you are informing your employer that you will resign from your job in two weeks. In the letter, state the specific date you plan to leave work.