Mark R. Lee

Consulting Attorney

Expert Witness

Commercial Arbitrator

Professor of Law

Headshot of Mark Lee


A highly regarded legal consultant and expert witness, Professor Mark R. Lee is an expert in Antitrust, Business Organizations, Corporations, and Securities Regulation. He has provided services in a wide variety of matters in each of these areas of expertise. Here are some examples:


Challenges to payments by large pharmaceutical companies to producers of generic drugs

Distributor terminations

Revocation of hospital privileges

Business Organizations:

Organizing and advising varied start-ups

Reorganizing an Illinois LLC law firm so that it could offer services in California

Partner’s rights in partnership property


Fiduciary duties

Hostile takeovers


Securities Regulation:

Private placements

Sale of restricted securities