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. For undergraduate students, use this affidavit of support form.An affidavit of support, (USCIS Form I-864), is required for all immediate relatives of US citizens and lawful permanent residents. Students in the U.S. in any non-immigrant status other than C, D, K, M or J visas with residency requirements can apply for a change of status to F-1. This is a sample letter for F-1 and J-1 supporters, showing that they are providing monetary support to students. The official website of the City of Oakland. Written Statement of Unauthorized Transactions Affidavit. The applicant must file Form I918, Supplement A, for qualifying family members. Can an Application be Made from Outside the United States? To apply for a U-Visa, you need to fill out certain forms and put together papers that support what you say on the forms.