Bonding.
Hello.
Think of a bond as a sort of insurance.
You agree to do X at such a cost.
If you go broke, the bonding company will pay, or in some cases simply hire another GC.
But, there is more to it.
This first one is called a performance bond.
http://en.wikipedia.org/wiki/Performance_bond
Next is the liability bond, and as it implies, covers the liability you might incur.
The aggregate of all of this is called a surety bond.
http://en.wikipedia.org/wiki/Surety_bond
I have worked under more than one GC in this field when I was real active in construction, I am a disbarred lawyer who hates office work, prefers to work on the job.
You can call an attorney who does construction who may be able to help you, figure on around $2k to walk you through it.
But, once you have all your contracts written and bonds set up it is pretty much static from there on, just getting started is the hard part.
And, yes, if you are about to lose your house it is going to be a hard sell.