Read the Birger v. Tuner case and the Liebman v. Rosenthal case and determine why the court ruled that both contracts were enforceable even though it was stipulated that both contracts were based on illegalities.

In the Birger versus Tuner case, the court ruled that the contract was enforceable even though it was stipulated that the contract was based on illegalities because the make-shift contract was still legitimate since both parties signed on it. To settle the debt, it was decided that the debtor pay the said amount.