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. You'll need to complete several forms and provide supporting documents.The two primary forms for the fiancé visa include the I-129F and DS-160. Petitioners who are sponsoring immediate relatives for their green cards need to complete an "Affidavit of Support" as part of the application process. To learn more about how Hartzman Law Firm can assist you in obtaining a K-1 Fiancé Visa, please call us at or fill out a contact form online. A fully completed and signed Affidavit of Support (Form I864) from the sponsor. An Affidavit of Support is required. Each affidavit must contain the affiant's full name, address, date and place of birth, and signature. Evidence of Support (Affidavit of Support). K and Diversity visa applicants are not required to provide an I-864 Form.