Darren Heitner has served as legal counsel to some of the most well known individuals and corporate entities in the world, including NFL wide receiver Antonio Brown, NBA superstar Draymond Green, full-service sports agency Rosenhaus Sports Representation, massively successful nutritional and dietary supplement company Evlution Nutrition and retired athletes such as Manny Ramirez and Luis Castillo.

Heitner has made a name for himself as a go-to lawyer for trademark filings and disputes. He is also at the top of the list when athletes or entertainers are looking for legal counsel. His legal practice has focused on not only Sports Law and Entertainment Law, but also contracts, litigation, arbitration (Heitner is an arbitrator as well), Gaming Law and many other disciplines.

Heitner established HEITNER LEGAL, P.L.L.C. in June 2014, after working at two law firms. He is also the author of a treatise titled, “How to Play the Game: What Every Sports Attorney Needs to Know,” published by the American Bar Association, wrote at Forbes for six years and Inc. Magazine for three years, taught a Sports Agency Management course at Indiana University Bloomington and taught Sports Law at the University of Florida Levin College of Law, which is Heitner’s alma mater.

In 2019, Heitner was named to the University of Florida’s 40 Under 40.