Your appeal letter is based in fact and provides a compelling summary of your stance, the evidence you have of your injury and your inability to work. In this post, we discuss the ERISA claim process, appealing your ERISA claim, filing an ERISA complaint, when to hire an attorney, and more.This sample letter has choices to help you build your letter. When you write, pick the words that describe your situation. The form asks you to provide a clear statement of the problem you are having. In this statement, include important information and relevant dates. Section XV highlights specific types of ERISA litigation, including developing issues such as employer stock litigation and. You Must Fill Out the Form Completely. ERISA is a federal law that establishes guidelines for the administration of employee benefit plans such as health insurance and pension plans. A letter is important.