NEW YORK STATE BAR ASSOCIATION Former clients, confidences, conflict of interest Committee on Professional Ethics  Opinion # 723 (10/12/1999) Modifies: N. Y. State 638 (1992) Topic:       Conflict of interest; former client; vicarious disqualification; confiden-ces and secrets. Digest:     Absent former client’s consent, a lawyer changing firms may not undertake representation adverse to the former client if … Continued