The Attorney Registration and Disciplinary Commission (ARDC), the administrative agency that regulates licensed Illinois lawyers, has filed its year 2018 Annual Report with the Supreme Court of Illinois. You can read the full report here or a summary here.
The summary has some interesting findings. For example:
Of the complaints filed with the ARDC, the majority involve claims of neglect. The second most common claim: failure on the part of the lawyer to communicate with the client.
10% of the complaints were filed by lawyers reporting on the conduct of other lawyers under rule 8.3. Of these, 44% resulted in disciplinary complaints.
Illinois Lawyers Now has a comment here.