Marcus & Mack Marcus & Mack PA Marcus & Mack is a personal injury firm located in Pennsylvania. Since 1977 Marcus & Mack has been working hard on behalf of its clients. Whether you're injured in an auto accident, by a defective product, or by the negligence of another, Marcus & Mack's main goal and priority is to make your life easier and get you the results you want from your case. We aren't just a law firm, we're a part of your community. Personal Injury, Lawyer, Law Firm, Legal, Law, Car Accident, Pedestrian Accident, Motorcycle Accident