A. It depends on which state you live -
If you live in one of the 9 community property states (Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin), then you generally will be held liable for any debt a spouse incurs.
If you live in none of the above 9 states, then you generally will not be held liable for the debt of a spouse unless you explicitly co-signed for the credit card or loan.