Bob Wierenga's practice focuses on complex commercial litigation, with an emphasis on antitrust litigation and class action defense. He has a wide range of experience in counseling large and small clients on antitrust, intellectual property, and fair trade issues arising under federal, state, and foreign law. He has represented clients in antitrust cases, consumer class actions, and other complex disputes in courts around the country, and has assisted clients who have been contacted by the U.S. Department of Justice, the Canadian Competition Bureau, and the European Commission's Directorate General for Competition. He also regularly counsels clients involved in litigation or arbitration arising out of complex commercial contracts or partnership agreements.

Bob is coordinating partner of Schiff Hardin’s Ann Arbor office.