Flatt v. Superior Court, 9 Cal.4th 275, 36 Cal.Rptr.2d 537, 885 P.2d 950 (Cal. 1994)
Flatt v. Superior Court is a foundational California Supreme Court decision on conflicts of interest and the scope of a lawyer's duties to nonclients and prospective clients.
1) When a lawyer concurrently represents a client, may the lawyer undertake, or continue, a representation directly adverse to that client in another matter, and what is the appropriate standard for disqualification? 2) Does a lawyer owe a tort duty to provide legal advice (such as warning of a statute of limitations) to a prospective client whose matter is adverse to the lawyer's existing client?
• Concurrent conflicts: A lawyer may not, without informed consent, represent two clients whose interests are directly adverse. In cases of simultaneous (concurrent) representation of adverse interests, the primary duty at stake is the lawyer's duty of undivided loyalty; this triggers automatic disqualification without inquiry into the likelihood of misuse of confidential information. A lawyer cannot cure a concurrent conflict by unilaterally dropping one client to convert the situation into a former-client conflict. • Successive conflicts: When a lawyer seeks to represent a new client adverse to a former client, the primary duty is confidentiality; the substantial relationship test governs, asking whether the two representations are so related that confidential information material to the new matter would ordinarily have been imparted. • Duties to prospective nonclients in the face of a conflict: A lawyer who is conflicted because of an extant duty of loyalty to a current client does not owe a tort duty to provide legal advice to a prospective client adverse to that current client; imposing such a duty would contravene the paramount duty of loyalty owed to the existing client.
1) Concurrent adverse representation violates the duty of undivided loyalty and results in automatic disqualification absent informed consent from all affected clients; courts will not balance or inquire into actual prejudice in such cases. 2) A lawyer and law firm do not owe a tort duty to advise a prospective client on time-sensitive legal matters (such as a statute of limitations) when the prospective client's matter is adverse to a current client; to require such advice would impermissibly conflict with the lawyer's duty of loyalty to the existing client.
Flatt is a cornerstone case in California on conflicts of interest. It cements the automatic-disqualification rule for concurrent adverse representations and crisply distinguishes it from the substantial relationship test applicable to former-client conflicts. It also delineates the limits of obligations to prospective clients when a conflict exists, instructing lawyers to prioritize duties to current clients and avoid giving adverse legal advice to nonclients. For law students, Flatt provides a roadmap for analyzing conflicts: identify whether the matter involves a current or former client; match the correct standard (automatic disqualification versus substantial relationship); and assess whether any purported duty to a nonclient would impermissibly interfere with the duty of loyalty or confidentiality owed to a client.