(a) A lawyer shall not reveal information relating to the representation of a client unless the client gives informed consent, the disclosure is impliedly authorized in order to carry out the representation, or the disclosure is permitted by paragraph (b).
(b) A lawyer may reveal such information to the extent the lawyer reasonably believes necessary:
(1) to prevent reasonably certain death or substantial bodily harm or to prevent the client from committing a criminal act that the lawyer believes is likely to result in substantial injury to the financial interest or property of another; or
(2) to secure legal advice about the lawyer's compliance with these Rules; or
(3) to establish a claim or defense on behalf of the lawyer in a controvers