When it's time to withdraw from representation in a civil case, the attorney should send the client a letter like one of these. TO (name and address of client): 1.A disengagement letter serves to make clear that a client has ceased to be a current client for conflict of interest analysis. In this article, we'll explain when and how you should terminate your lawyer-client relationship. We'll even provide a sample termination letter. Writing a termination letter to an attorney requires clarity, formality, and a record of the decision to end the legal representation. Need to write an attorney closing letter to clients? Build in time for your client to find new counsel. Ask the client to sign a substitution of attorney form to voluntarily relieve you. The attorney may send a letter or email correspondence if that is how they communicate with the client, telling the client they are withdrawing from the case.