1133 Avenue of the Americas
New York, NY 10036

+1 212 336 2110

Local Litigation Star

Practice area:

Intellectual property
Lanham Act


Steve Zalesin is a Partner in the Firm’s Litigation department. He is a nationally recognized trial lawyer with extensive experience in false advertising, intellectual property and complex commercial matters. He has successfully tried cases and argued appeals in numerous courts throughout the United States. He has also represented clients in arbitration proceedings in several countries. 


For more than 30 years, Mr. Zalesin has represented the nation’s leading manufacturers and service providers in a series of groundbreaking cases that have shaped the law of false advertising, while helping to preserve and grow the markets for our clients’ products. In 2016, he secured a complete defense verdict on behalf of a leading beverage company following the U.S. Supreme Court’s landmark decision remanding the case for trial. More recently, he obtained a nationwide permanent injunction for a leading animal health company, enjoining ads that claimed that dairy products made with milk from cows treated with the company’s supplement were unsafe and less wholesome than other dairy products. He is currently defending several lawsuits brought by environmental groups challenging our clients’ labeling and advertising statements that their products are sustainable and recyclable. 


Mr. Zalesin is a leading practitioner in the area of consumer class actions. This year, he obtained a major appellate victory in the Ninth Circuit court of appeals, resulting in decertification of a class of consumers who claimed to have been misled by the labeling of our client’s best-selling soft drink. In 2020, he secured dismissal of a class action complaint that targeted a leading online petitioning platform and its efforts to promote racial justice. He is currently defending the world’s largest health care company in nationwide litigation related to the recall of several of its sunscreen products, and is representing leading beverage, confection and apparel producers in litigation over their product labeling and advertising. 


Mr. Zalesin graduated from the University of Pennsylvania Law School in 1985. 

Updated Sep 2021