Comment Ethical violation (Score 5, Informative) 211
IAAL, and I've worked directly for judges. This won't win the RIAA lawyers any friends on the bench.
There is an ethical obligation to inform the court of legal authority (cases) in the controlling jurisdiction (same state, or federal circuit, for example) known to the lawyer to be directly adverse to the position of the client. See ABA Model Rules of Professional Conduct, Rule 3.3(a)(2).
Rule 3.3(a)(3) prohibits offering "false evidence." Not quite on point, because legal authority is not "evidence".
The commentary suggests that a "lawyer must not allow the tribunal to be misled by false statement of law or fact or evidence that the lawyer knows to be false." Rule 3.3, cmt. 2. That's pretty inclusive, and I'd feel comfortable arguing that failing to disclose the reversal of authority you've previous cited is an ethical violation. A referal to the state bar commission could be in order here, and let them sort it out.
There is an ethical obligation to inform the court of legal authority (cases) in the controlling jurisdiction (same state, or federal circuit, for example) known to the lawyer to be directly adverse to the position of the client. See ABA Model Rules of Professional Conduct, Rule 3.3(a)(2).
Rule 3.3(a)(3) prohibits offering "false evidence." Not quite on point, because legal authority is not "evidence".
The commentary suggests that a "lawyer must not allow the tribunal to be misled by false statement of law or fact or evidence that the lawyer knows to be false." Rule 3.3, cmt. 2. That's pretty inclusive, and I'd feel comfortable arguing that failing to disclose the reversal of authority you've previous cited is an ethical violation. A referal to the state bar commission could be in order here, and let them sort it out.