In this article, we discuss how to write a conformational letter, look at sample templates for formal and informal confirmation letters and share some tips. The following template may be sent to the employer for guidance.Please provide an official letter from the employer verifying the internship. To become a Registered Mental Health Counselor Intern in Florida you must have: 1. OFFICIAL TRANSCRIPT: Minimum of an earned master's degree. Letter from Internship Supervisor must state: Confirmation of internship placement. Please fill out Sections I, II, and III. Please be sure to collect ALL necessary signatures.