A contract is formed when there is (1) an agreement; (2) for exchange of value; and (3) sufficient terms. To be enforceable a contract must meet three criteria: (1) there was an offer: (2) the offer was accepted; and (3) there is consideration.A contract is a legally enforceable promise. According to Utah Code Title 25, consideration must be present for a contract to be binding. Learn how to legally terminate contracts in Utah with Ascent Law Firm. Explore contract law, rights, and options for ending agreements effectively. A contract does not need to be in writing to be enforceable under the law. Legality in contracts is essential. The legality of purpose in contract law is the terms and conditions in legal documents that are legally binding. The phrase "Under Contract" is used frequently, but many buyers and sellers may not be sure what it means exactly.