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. The "Affidavit of Support" is a signed document to accept financial responsibility for a family member who is seeking a green card.Go to "Other Services" and complete the e-form "Invitation Letter Request. For aliens who have an Affidavit of Support form (I-864) filled out on their behalf, be sure to determine work quarters and citizenship status. Form I-134 is a promise to financially support a person applying for a temporary visa to the United States, namely a travel visa or a K-1 fiancé visa. Completing and signing Form I-864 makes you the sponsor. The Consulate General of the United States of America does not Ask you to Upload Any Documents Directly Involving Formal Evaluation. Filling-Up the Application Form and then Heading into the Payment of Fees and Finally Seek the Appointment and Ta Da! Once in the U.S. in B status, visitors can apply to USCIS to extend their status using Form I-539. Form DS-160, Nonimmigrant Visa Application.