"Dear Parents, I am writing to thank you for two things. A "thank you for joining" membership letter should include a personalized greeting to the new member.Use the member's first name in your salutation. Parent Coordinator Welcome Letter​​ Dear Parents, Guardians, and Families, My name is Ms. Rios and I am the Parent Coordinator of Bronx Envision Academy. These forms are posted here for schools and Family Welcome Center staff to share with families. Here are 10 things your welcome letter or email to new members must include plus a template that can be customized for your organization. 1. Enter the date at the top of the letter. As a lifelong educator and mom of a New York City Public Schools (NYCPS) student, I am eager to work with and serve you. School-Parent Compact. 2-3. 3. ✓ Registration Application.