Is an attorney's client's "client" considered to be a client?

An attorney's "client" is the person or entity on whose behalf the lawyer acts. In certain proceedings an attorney may have more than one client, and where this is so, they owe duties of loyalty to all the interests represented. The duty of loyalty includes a duty of candor candor to all the interests represented. "A lawyer like a trustee is bound to higher standards than the morals of the marketplace." MGIC Indemnity Corporation v. Weisman, 803 F.2d 500, 504 (9th Cir.1986). "Professional ethics requires of a lawyer a decent sense of responsibility to all those he or she serves." Id, at 504.