Credit card applications usually say "must be a U.S. resident".
If a U.S. citizen moves abroad temporarily, and he doesn't want to use his friends' or relatives' U.S. addresses to get his mail, and his foreign address is uncertain, or in a country with unreliable mail, what happens to his bank or credit accounts?
Must he give them up? Can and should he use an accountant or an attorney in the U.S. to handle his finances (and if so how much would that cost, typically)?
Is there a standard name for this service?