Scroll Down to Fill Out our Parish Registration Form Online Below! We welcome new members and are blessed that you are considering joining our parish.This form is provided online for your convenience. Interested in Becoming a Member? Do you want new ways to welcome members into your church? Check out these top church membership welcome letter templates and best practices. The following application is in three parts. As you are filling out the application feel free to call our office if you need assistance. Here are the steps in applying for membership: 1. Review Membership Requirements.