A legally recognized offer and an acceptance create a "meeting of the minds", or mutual assent, between the parties. A valid contract begins with an offer from a first party.The second party may choose to accept the offer as it stands, making the contract complete. Under the state's law, the following are requirements of a valid contract: An offer;. Acceptance in strict adherence to the terms of the offer;. In order to be viable and legally binding, the terms of the offer should be clearly outlined. The claiming party must prove four elements to show a contract existed. These include proof of the offer, consideration, acceptance, and mutuality. Call us at our San Antonio offices at 210-963-5297 or fill out our contact form. We're proud to serve clients throughout Texas.