Sorry, but with 300,000 equity in your house, the bankruptcy court will very likely make you sell the house to pay off your creditors.
So you probably don't qualify for bankruptcy with that much equity.
An LLC protects your personal assets from claims against the LLC, not the other way around.
Since the LLC is an asset you own, it's also subject to liquidation to pay your debts (to the extent that it is worth any money).
Consult a bankruptcy attorney.