Most of the time when people acquire something for $1 or $100 or whatever the deal includes them assuming some of the existing liabilities. Sometimes you have to pay a consideration of value to make the contract enforceable but the $100 isn't what she's actually providing, she's probably underwritten some of the creditors or agreed to pay staff and suppliers or whatever. It's not actually $100 is the whole amount she would have been on the hook for.