Boost your renewal rates with a foolproof membership renewal letter! These basic, sample letters can be used to notify applicants that a position has been filled.You may wish to also use the "Sample Candidate Closeout Letter" Here are sample letters and forms often used to communicate with the school about the needs of a student. It is our pleasure to invite you to complete the enclosed application for Sigma Tau Delta membership. These basic sample offer letters consist of "core" data that should be included in an offer letter. I am excited to be applying for the position of membership. Please accept this letter and the attached resume as my interest in this position. Trying to write a membership renewal letter but don't know where to start? Below are resources to help you write your résumé.