Download this free Contract Termination Letter. Use this letter to give notice to terminate an independent contracting relationship.A contract termination agreement is an agreement where all contracting parties legally end their contractual relationship and agree to the cancel the contract. A termination and release agreement is a contract that is used when two parties mutual agree to end a legal contract. This cancellation letter template is available for use on UpCounsel. Figure out what to say in a client termination letter to ensure a professional exit and use our letter template to save time.