Add contact details, company name, and date. We reviewed a sample of resignation letters, which are required to document the last day of work, and exit forms, which are voluntary, from.Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. I regret to inform you that I will be terminating my employment as a police officer with the 1st Precinct. My last day will be February 1, 2017.