This is to certify that the above named student was registered as a full time student, in an undergraduate program, for the Spring Day 2015 term. The. Many proposals require or allow letters from your institution, administrators, partners, and collaborators.Boost your renewal rates with a foolproof membership renewal letter! Handwritten letters are not acceptable. The envelope: Your cover letter should always be mailed in a standard, business-size envelope (8 ½ inch x 11 inch). Download a proof of residency letter template for family members, notarized or non-notarized, tailored for legal use. This resource covers the parts of the basic business letter and provides three sample business letters. This letter is written on Marymount University letterhead. Discover sample templates to make sure you get your letters right and retain your members. Single Status Letters are to verify that no current marriage is on file in the Commonwealth of Virginia.