A Certificate of Residence(PDF, 13KB) form is required as part of recording all deeds transferring property ownership. • Domicile certificate (if applicable).• Non creamy-layer certificate (if applicable). 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). Certificate of Residence. Allegheny County Department of Real Estate – Certificate of Residence Form. Providing proof of domicile in the United States is critical for most people when submitting Form I864, Affidavit of Support. Form I-6 Certificate of Service. ,. Petitioner.