This is a hot topic.  Disgorgement due to "for cause" termination, not amounting to legal malpractice is a brand new area to the field.  The Court of Appeals has enunciated a principal that if an attorney is terminated for cause, the attorney is due no compensation.  Here is a blurb from Hinshaw that tells of a case in which disgorgement was ordered after a conflict of interest analysis. The blurb