When you receive and sign an engagement letter from that lawyer, you will be our client, and we may then exchange information freely. (clarkhill.com)
The best practice for communicating this to the client is a joint letter from the lawyer and the current law firm. (lawyerist.com)
Sometimes, receiving a formal letter from a lawyer is enough to prompt someone who was in denial to take steps and find their own lawyer or agree to go to mediation. (mccuaig.com)