Learn how to create an accurate affidavit letter with our free printable templates. 1. Talk to the person immigrating to the US. The person for whom you write an affidavit should be someone you know very well.Please specifically describe what support you intend to provide for the student. This article provides a comprehensive sample of an affidavit letter, guiding readers through the essential components and format. This letter is a sample affidavit of support for a student attending the Community College of Vermont. In today's video I'm going to show you how to properly submit the Affidavit of Support and financial evidence for conselor process. In this lesson, you will learn what an affidavit is and how to format one. You'll also review a sample template that can be used to construct an affidavit. You can easily make an Affidavit within a few minutes using our document builder. If you are a North Carolina business sponsoring a student, download and complete the sponsorship form.