The house, when all is said and done, won't pay off the CC debt, and then you'll have no place to live.
Sounds like you have kids - I'd put their welfare first and file BK/keep the house (assuming you live in a state where this will work). Then sell everything at the gym/quit doing that. It's not a job, or a business, if you don't make money. You can go work out at someone else's CF gym.
-W