I am 72 and able to work but cannot find a job for 3 years. All resources used up - only have social security for my wife and I. House is underwater and SS covers it with only a few dollars to spare. Trying for a mortgage modification. Don't have enough cash flow to cover utilities and health insurance - also have $33,000 in credit card debt. If bankruptcy is filed can we keep the house.

What State - and probably.

Beware of some mortgage modification scams.
Have you looked at total debt reduction plans, for both mortgage and c.c.s? Through non-scammy places like AARP?
What health insurance? Medicare Part D and/or supplemental?
Have you applied for Medicaid, food stamps, and any town property tax discount for seniors?
Have you reduced car insurance to the minimum (I pay under 300/yr).