Palins lawyers believe it opens up all correspondence that RH has about the book and Mcaginniss over him breaking attorney client priviledge
I have seen nothing from Palin’s lawyers in the public record suggesting they think attorney-client privilege is the issue. It certainly is not in their letter.
If you have a private communication with her lawyers, then you have better information than the rest of us. If you don’t, then I don’t know where you get this idea, because i don’t see it in the public record.
Communication between a lawyer for a firm and an outside party would not be protected by any privilege; The e-mail they have from the author gives evidence that the author received e-mails from the firm that suggested they knew his charges had no factual evidence, and that is what their letter to the firm references. Not A-C privilege.
Do you have a source for that?
I've never litigated a waiver of attorney client privilege, but, if X emails a friend and says "I've been meeting with my lawyer about that hobo I killed last Christmas. He is very concerned that I'm going to be convicted." Then X can't use attorney-client privilege to keep that email out of court, but it does not follow that the DA can call X's lawyer as a witness when X is tried for killing the hobo, much less that the DA can call X's attorney in front of the Grand Jury, to testify about all of the other hobos X told his lawyer that he has killed.