About
Joseph J. Leonard is the owner and equity partner of Leonard Law Group, LLC, in Chicago, Illinois. He leads the firm with over thirty years of experience, focusing on workers’ compensation and personal injury law. Known for his relentless advocacy, he has secured justice for countless injured clients across the state.
Leonard earned his Bachelor’s Degree from Lake Forest College in 1986. In 1993, he completed a joint degree program, receiving a Juris Doctor from The John Marshall Law School and an MBA from Dominican University. This educational foundation gave him a strategic edge in law and business from the onset of his career.
Leonard began his legal journey defending major employers and insurance carriers in high-profile workers’ compensation claims. His litigation talent quickly made him a go-to attorney for industry leaders, who enlisted him to manage multi-state legal operations. His early years shaped his unmatched command of complex claims.
In 1998, Leonard transitioned to plaintiff representation, co-founding Leonard Law Group. He committed his practice to advocating for injured workers, including those facing career-ending injuries. Known for taking and winning cases deemed “unwinnable,” he has a 98% trial success rate in workers’ compensation claims.
Beyond workers’ compensation, Leonard also represents victims of serious construction accidents, vehicle collisions, medical malpractice, and premises liability. His trial advocacy extends to carpenters, laborers, and tradespeople injured in scaffolding or crane accidents. His ongoing efforts in these areas remain a cornerstone of his firm’s mission.
Joseph J. Leonard is widely recognized by his peers and clients alike for his legal excellence. In 2019, he was selected to Super Lawyers® for his outstanding track record. His leadership at Leonard Law Group ensures clients receive aggressive, informed, and results-oriented legal representation every step of the way.
Law Office Affiliations
- Owner/Equity Partner, Leonard Law Group, LLC
- Member, Illinois State Bar Association
Licensed State
- Illinois
Education
- The John Marshall Law School
Juris Doctor (JD) - The Dominican University
Master of Business Administration (MBA) - Lake Forest College
Bachelor of Arts (BA)
Awards & Badges

- Animal And Dog Bites
- Brain Injury
- Car Accident
- Medical Malpractice
- Mesothelioma and Asbestos
- Spinal Cord Injury
- Trucking Accident
- DUI and DWI
- Social Security And Disability
- Workers Compensation




