What must be done to ensure the validity of a contract?

To ensure the validity of a contract, it is essential that both parties involved have a clear understanding of the agreement's terms and that an executed copy is available to all parties. By receiving a copy of the contract, each party can verify that the terms are accurately reflected, which fosters mutual agreement and accountability. This practice not only serves as a record of what was agreed upon but also helps prevent misunderstandings or disputes in the future.

While obtaining a witness signature, making payment in full, and providing valid ID may be important in certain contexts, they are not universally required for a contract to be considered valid. A contract's validity primarily hinges on mutual consent to its terms, an offer, and acceptance, along with lawful consideration. Having a copy of the contract ensures that all parties are informed and can reference the details of their agreement when needed.