Honestly, I would stop paying the credit cards and try to keep the house current. Once you miss a payment on the house or cc's those 0% rates are gone and in order to do a short sale you will need to miss payments.
I would put the house on the market, stop paying the cc and try to save as much money as I could, either for a "new to you but still old" car or to get out of the house. Your 4 walls are the most important thing, pay them (food, water, shelter & transportation), the rest of the people can take a place in line until more money is coming in.
I don't agree with that. Do not stop paying your cards or you will get a default rate. Make minimum if you have to.