What do I do if a client has died and their family ask for their notes?

When a client has died, the professional duty of confidentiality persists. You may only use information about a client for the purposes that it was provided to you, and you may only release information to someone who is entitled to it. Exceptions to maintaining confidentiality such as in a situation of safety concerns directly relating to harm to or from the client would only apply when the client is still living.