If he's going to be liable for the debt on those 2 houses what are you waiting on? That's like sitting on a time bomb. Your house will be a problem under bankruptcy and in an IVA later down the line. Sell your house, remove the equity and
RENT. When the time comes to pay the debt on the 2 other houses, pay it if you can afford to. If you can't pay it because you spent all the money taken from your own house what are they going to do? You can't get blood from a stone. It's not illegal. If you sell the house and spend the money then YOU declare bankruptcy, that would be deemed disposing of an asset to avoid repaying debts. However, if you don't declare bankruptcy you can do what you want with your house and the equity just now.
I wouldn't worry about renting. You'll have enough money to rent anywhere you want with the bonus of being able to move very easily if you get neighbours from hell next door.
Obviously if you leave the money from your house equity sitting in your bank, you will eventually be sued for the debt on the other houses.
Hint nudge: don't leave the money sitting in your bank account.