Get help drafting the welcome letters to the new members of your nonprofit organization with these two useful writing templates! We have renewal templates for: 90 Days Out, 15 Days Out, Day of Expiration.Trying to write a membership renewal letter but don't know where to start? State the position you are applying for, how you found out about it, and ask for consideration based on your skills and experiences you have to offer. Certificate of Membership (Sec. Portal). Certificate of Membership Dual (Sec. Portal). Optimize your member renewal letters to keep members coming back year after year. Read our how-to guide and download your free template. Be courteous and informative in your communication. Academic HR. Faculty Appointments.