Applicants must provide proof of: Full legal name; Date of birth; Legal presence in the US; Social Security number (SSN). See more information below.If you want to sponsor someone for a family-based green card, you need to provide proof of a U.S. domicile in your Affidavit of Support (Form I-864). Student (as applicable). Typically, in order to claim US domicile, the Affidavit of Support sponsor must be residing in the United States. TWO documents, from different sources, proving Ohio Street Address that are listed on the Acceptable Document List are required for proof of Ohio residency.