Let them foreclose and go bankrupt or what?

A family member owns a home and they are totally upside down with a first and second mortgage. They need to move from the area in the next six months and can't rent or sell their house. Their plan was to sell the house when the time came. Now they can't. The house is in the husbands name. She feels they may be able to buy another house since her credit is good . She should be able to get a good job when she finishes school. But even then they can't pay two mortgages. It is California. I know this is not a "legal" advice forum. Just wondering if anybody had any ideas.