TWO documents from different sources proving Ohio Street Address that are listed on the Acceptable Document List are required for proof of Ohio residency. 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).Hello We received today a RFE saying that my wife (the petitioner) must submit proof of domicile. TWO documents, from different sources, proving Ohio Street Address that are listed on the Acceptable Document List are required for proof of Ohio residency. This guide will explain how to prove domicile when filling out Form I-864 ("Affidavit of Support"). Consular processing support without the high price tag. 1. What are the guidelines that determine Ohio Residency?