interested in a real estate career? but it’s safe to say that regardless of where you practice real estate, you’ll have to learn the basics of contract law. a good real estate pre-license course will help you understand the basics of contract law in your state. you should also know that there are four possible legal status options for contracts: valid, unenforceable, void, and voidable. a valid contract is one that possesses the essential elements to be legally enforceable. unfortunately, there are quite a few things that could turn your real estate contract into an unenforceable one.