Optimize your member renewal letters to keep members coming back year after year. Read our how-to guide and download your free template.Trying to write a membership renewal letter but don't know where to start? Boost your renewal rates with a foolproof membership renewal letter! Download a proof of residency letter template for family members, notarized or non-notarized, tailored for legal use. Every organization has to craft a membership program that's appropriate to them and takes advantage of their distinctiveness. Get help drafting the welcome letters to the new members of your nonprofit organization with these two useful writing templates! You can download copies of determination letters (issued January 1, 2014 and later) using our online search tool Tax Exempt Organization Search (TEOS). Other ways to complete this task. Use our automated phone assistance.