Want to know how to write a retirement letter of resignation? Get the insights you need and free retirement letter template to help guide the way.In this article, we discuss how to write a retirement letter and we provide an example letter to help you draft your own. Use this resignation letter sample as a model to advise your employer that you are resigning because you are leaving the workforce. In the opening paragraph, make it clear that you are retiring. Your retirement resignation letter should begin with a header that states the contact information of the sender and addressee as well as the date. Key Largo Subdivision HOA Letter to Residents - Free download as PDF File (. Pdf) or read online for free. Retirement- Employees are eligible for either the Teacher Retirement System (TRS) or the Optional Retirement Plan (ORP).