http://www.financialsamurai.com/non-recourse-states-walk-away-from-mortgage/
Apparently CA is non-recourse. But that does not mean BK is the best course!
Note that this article talks about FHA loan eligibility 2 years after BK. Before anyone thinks that sounds like a fantastic deal, consider that the best FHA APRs are already at least 1.25-2% higher than a conventional loan. Then roll in a credit problem. One could be paying 3-4% higher APR with a bad credit score than with a good one.
For a $200k home loan, a 3.5% rate has a payment of about $900/mo for Principle and Interest. At 6.5%, that same mortgage PI is $1265, or $365 more per month.
That's $4400 per year living in the home. For as long as you live in the home (up to 30 years). Even if you only live in the home for 10 years, that is $44k! It would be even worse as the home's sale price increases.
Now paying off that $16k loan balance doesn't seem so bad.