The California Bar has jurisdiction over the attorney and can sanction, censure, suspend or disbar any attorney found guilty of a wide variety of transgressions. They cannot do this, though, without conducting a hearing and issuing a finding and recommendation that is reviewable by the court.
I am a co-author of WEITZ ON AUTOMOBILE LITIGATION: THE NO FAULT HANDBOOK. The opinions expressed in this answer are not intended to be taken as legal advice. These opinions are based on New York practice. I may be contacted at 212-553-9300.
A licensing bar regulates the professional ethical behavior of its licensees. Very little behavior not in the service of a client (commission of a crime is the primary exception) is regulated as a matter of ethics. It is possible, therefore, that a bar association would be powerless to sanction an attorney functioning as a self-represented litigant.
Best wishes for an outcome you can accept, and please remember to designate a best answer.
This answer is offered as a public service for general information only and may not be relied upon as legal advice.
They can, but apparently the complaints havent been serious enough so far, unless they have started the process, and just havent completed yet. Contact the Bar about your concerns or complaint.