This IS a legal question, however, it is one that we deal with on a regular basis as real estate agents. If the entire situation is that you were sent a contract, which you may or may not have agreed to verbally, and you did not sign it, then you have no contract, and not committed to the purchase. No one can make you sign the contract. However, the question was, can you be sued? Sure.. People can bring a lawsuit for crazy reasons. Bringing a lawsuit, and winning a lawsuit, though, are two different concepts. And people who sue can be countersued. Still, frivolous lawsuits cause expense to the defendant. If you have reason to think that the other party might sue you, by all means consult an attorney to understand what your options are, and whether or not you should be concerned in this situation.