How do I write a letter to change my church membership? This is an almost unanswerable question without context.The applicant's pastor must sign off on this form indicating the applicant is a full member of a. 501(c)(3) equivalent (Pub. 557). Begin filling out the form with name of church requesting the letter. This will be your current church that recommends you to a new one. We are looking forward to working with you in your decision to celebrate the Sacrament of Marriage at St. Elizabeth Ann Seton Catholic Church. Do you want new ways to welcome members into your church? Check out these top church membership welcome letter templates and best practices. The church stands out beacon of faith for the Catholic community of Broward County.