The representation of multiple clients in a single litigation matter is generally permissible so long as the lawyer reasonably believes that he or she will be able to provide competent and diligent representation to each client, the representation does not involve the assertion of a claim by one client against another client, and each client gives informed consent, confirmed in writing. Ethical Rule (“ER”) 1.7(b). The requirement of informed consent arises only if, as an initial matter, the lawyer determines that the lawyer can, in fact, competently and diligently represent each client in the particular matter. Once that determination is made, the lawyer bears the burden of showing that there was adequate disclosure to each client and that each client gave an informed consent.
The disclosures required to obtain the client’s “informed consent” will depend on the facts and circumstances of the particular matter. The lawyer must explain the possible effects of the common representation on the lawyer’s obligations of loyalty, confidentiality and the attorney-client privilege. In addition to the confirming writing required by ER 1.7(b), informed consent usually will require that the lawyer explain the advantages and disadvantages of the common representation in sufficient detail so that each client can understand why separate counsel may be desirable. Finally, during the course of the matter, the lawyer must continue to evaluate whether conflicts have arisen that may require additional disclosures and consent or withdrawal from the representation.