Dear (HR Manager's Name),. Download Pennsylvania Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature.Learn how to write a resignational letter if you're quitting for personal reasons. "I received your request that I submit my resignation in writing. A resignation letter is a way to formally end your employment and provide details such as an end date and contact information. This means that you can quit at any time unless your employment contract says otherwise. I hope this letter finds you well. It is with regret that I have to resign my position as a nurse practitioner in the cardiac unit at UPMC East immediately. Add contact details, company name, and date.