Do you want new ways to welcome members into your church? Check out these top church membership welcome letter templates and best practices.We would love to consider having your church as a part of our Association. Please fill out this form and we will get in touch with you shortly. These forms are for ministries and membership use only. Congregational Care Realm. Church Membership Letter Templates - Membership Transfer Letter, business meetings, etc. See. General Instructions A. Who Must File, and the instructions for lines 44 and 45, later, before completing this form. 3. A letter of invitation includes an explicit invitation to join the church as an official member. A lot of theories turn out not to be accurate or complete.