A disciplinary violation, without more, cannot support a legal malpractice case.  The lesson of Arga Capital, Inc. v Kreiner & Kreiner LLC  February 23, 2018  Supreme Court, New York County
Docket Number: 651649/2014  Judge: Saliann Scarpulla  is that a conflict of interest coupled with demonstrable negligence can definitely support a legal malpractice claim.

“Arga is

In legal malpractice, one may allege pecuniary loss only.  No emotional disturbance claims permitted.  No loss of enjoyment of life permitted.  However, this professional negligence claim was dismissed for  claiming pecuniary loss.  Lerner v Douglas Elliman Real Estate, Inc.2018 NY Slip Op 30280(U), February 15, 2018  Supreme Court, New York County  Docket Number: