for good? theres a sample termination letter here..Im sure many tax preparers are gearing up to send a bunch of these out this summer....its one of the first questions I ask a potential new client "what happened to your old preparer?" if they got sent a letter telling them that they couldn't do their returns anymore, yea, good luck buddy, I dont want you either.

https://quickbooks.intuit.com/uk/blog/client-termination-letter-template/