TERMINATE CLIENT RELATIONSHIPS IN WRITING​​ Confirm the end of the representation through a file-closing letter. In this article, we'll explain when and how you should terminate your lawyer-client relationship.We'll even provide a sample termination letter. Start with a clear and concise statement that you are terminating the contract. Mention the contract's title and reference number (if applicable). Figure out what to say in a client termination letter to ensure a professional exit and use our letter template to save time. Download this free Contract Termination Letter. Use this letter to give notice to terminate an independent contracting relationship. A landlord or a renter can easily and quickly create a lease cancellation letter using a free Minnesota termination of lease form template.