Every couple of months, somebody asks me if they can fire their contractor. My answer is always, “Yes! Absolutely!” When his or her face brightens I always add, “That doesn’t mean you won’t get sued for it, though.” When you fire a contractor without paying her price in full, you breach your contract. When you breach an enforceable contract, you can be sued for it. While you can be sued whether or not you have an excuse for not paying, you can only lose the case if your excuse is no good under the law.