Acceptable documentation includes original copies of a marriage certificate, divorce decree or court documents. Edit, sign, and share Affidavit of Domicile - Middlesex County - co middlesex nj online.Annual Report of Guardian. Free viewers are required for some of the attached documents. At least one of the adult applicants must currently reside in Middlesex County and have maintained residency for at least one year at the time of application. 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).