Sample Resignation Letters. Please accept this letter as a notice of my resignation.See sample resignation letters below. Learn how to write a resignational letter if you're quitting for personal reasons. Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. I will go over a step-by-step resignation template letter you can use, how to structure it and provide examples of resignation letters. I am formally resigning from my position as Senior Registered Nurse at Maplewood Medical Center. If you resign during the school year (i.e.