Q: I have a friend who is a French citizen, who came to the United States on a visitor’s visa, fell in love and married a U.S. citizen. Unfortunately, they began a trial separation after a few months. My friend got her own apartment (but hasn’t done anything legal about the separation). Now she wants to get a green card, and will need to prove to the immigration authorities that she’s married. They’re asking her to show them a lease showing that she and her husband live together, but her landlord won’t add her husband’s name to the lease. What can she do? –Andre Z.