(a) A lawyer may act as intermediary between clients if:
(1) the lawyer consults with each client concerning the implications of the common representation, including the advantages and risks involved, and the effect on the attorney-client privileges, and obtains each client's consent to the common representation;
(2) the lawyer reasonably believes that the matter can be resolved on terms compatible with the clients' best interests, that each client will be able to make adequately informed decisions in the matter and that there is little risk of material prejudice to the interests of any of the clients if the contemplated resolution is unsuccessful; and
(3) the lawyer reasonably believes that the common representation can be undertaken impartially and without improper effect on other responsibilities the lawyer has to any of the clients.
(b) While acting as intermediary, the lawyer shall consult with each client concerning the decisions to be made and the considerations relevant in making them, so that each client can make adequately informed decisions.
(c) A lawyer shall withdraw as intermediary if any of the clients so requests, or if any of the conditions stated in paragraph (a) is no longer satisfied. Upon withdrawal, the lawyer shall not continue to represent any of the clients in the matter that was the subject of the intermediation.