Theoretically, his Estate is responsible for the debts and it is the responsibility of the Executor of the Estate to liquidate assets and pay what he can of the bills. This means selling homes, cars, trailers, TVs, stereos or whatever and paying what he can. Under the scenario you describe, any benefactors under a will won't be left with anything.. . Contact an Estate or Probate attorney to be sure, but I don't think any heirs will be responsible for the debts, beyond the fact that they might not inherit anything.