To claim domicile in the United States, you must be permanently living in the USA and planning to maintain your principal residence in the United States. Meanwhile, certain categories of individuals temporarily living or working overseas are also eligible to claim U.S. domicile.
A sponsor who completes Form I-864 must be obligatorily domiciled in the USA, otherwise he/she has to provide the evidence of intending in good faith to reestablish domicile in the United States at the time no later than the date of the intending immigrant’s admission or adjustment of status.
You, as a sponsor, should provide a declaration of intent to reestablish domicile, a simple statement in arbitrary form, stating that you intend in good faith to return back to the USA and to resume your domicile. The declaration must be supported by as many evidence as you can provide. The following issues can serve as the evidence: accepted employment offer in the USA; your child’s enrollment in a U.S. school; documents on your property in the United States; maintenance of bank or investment accounts in the USA; papers proving that you are relocating back to the USA.