The answer to all 4 of your questions is NO.
To question 3, the answer is still no, but it actually doesn't matter if you both sign, your community property is still not at risk.
California law does not allow a home lender to enforce the debt as a personal liability.
All the home lender can do is foreclose on the home and report that the borrowers have defaulted on their payments. Ever. No matter what.
There are no deficiency judgments for home mortgages in California. These rules do not apply to second mortgages, but you did not ask about those.
Answered on Aug 20th, 2012 at 5:46 PM