Lawyering for groups, broadly defined as the legal representation of a client who is not an individual, is a significant and booming phenomenon. Encompassing the representation of governments, corporations, institutions, peoples, classes, communities, and causes, lawyering for groups is what many, if not most, lawyers do. And yet, the dominant theory of law practice—the Standard Conception, with its principles of zealous advocacy, nonaccountability, and professional role-based morality—and the rules of professional conduct that codify it, continue to be premised on the basic antiquated assumption that the paradigmatic client-attorney relationship is between an individual client and an individual attorney. The result is a set of rules and...