There are several types of Affidavit of Support forms (I-864, I-864EZ, I-864W, and I-864A). Use this form to show they have adequate means of financial support and are not likely to rely on the US government for financial support.Family Name (Last Name) Given Name (First Name) Middle Name Beneficiary's Current Legal Name (Do not provide a nickname.) Do you need an attorney to help you with an addifavit of support I-864? Contact Shawn Mughal and excellent immigation Attorney in Alexandria. They include tax returns, an employment confirmation letter and three recent check stubs or proof of income for the sponsor or petitioner. In order to fill out an affidavit of support as a sponsor, you must be a U.S. citizen or green card holder. Some sponsors temporarily reside abroad and intend to move to the US once a family member's immigrant visa is issued. Note: Mistakes in completing the I-864 are a common reason for delays with an immigrant visa application. The affidavit is made for the purpose of assuring the United States government that the sponsored alien will not become a public charge in the United States.