Description of field of expertise

Sean Suber is a seasoned trial and appellate litigator at Winston & Strawn, specializing in complex litigation, class actions, product liability, and mass tort matters. He represents and counsels a broad and sophisticated client base across consumer products, technology, health care, and media & entertainment sectors, guiding them through every stage of high-stakes litigation. 

Sean is particularly recognized for defending class actions involving false advertising and defective products. He often achieves early dismissals, but also has extensive experience navigating complex cases, multidistrict litigation, and advocating successfully at trial and on appeal. In product liability matters, he has defended corporations in catastrophic injury cases and mass torts, including large-scale jury trials and appellate proceedings. He has handled appeals in federal circuits, including high-profile constitutional and regulatory litigation. He also brings deep experience in briefing and arguing dispositive motions, managing discovery, and shepherding cases from inception through arbitration or trial. 

Beyond his commercial practice, Sean maintains a robust pro bono commitment. He has represented indigent criminal defendants in appellate work, argued for Fourth Amendment protections, and collaborated on amicus briefs to address systemic injustice. 

Sean’s peers and clients commend him for his creativity, rigor, and persuasive advocacy. Chambers USA recently rated him an “Up and Coming” litigator from Illinois, with clients saying he  “is bright, knowledgeable,” “an excellent writer,” “very persuasive,” and “a first-rate lawyer.” His work has earned him recognition, including being named among Benchmark Litigation’s “40 & Under” and Lawdragon’s “500 X – The Next Generation.” 

What advice would you offer new attorneys interested in your field?

Complex litigation is a long game that demands patience, persistence, and versatility. Behind every headline trial or case that you may read about in law school or see on TV is often years of meticulous strategy, briefing, discovery, and argument. You may be the most gifted oral advocate, but without mastering the rules, record, and written work that lead up to an argument, you may never reach the podium. And the reverse is also true: you can be an exceptional writer and strategist, but your effort may fall flat if you cannot translate your client’s position clearly and persuasively to a judge or jury. Success in this field requires becoming a well-rounded advocate who values preparation as much as performance. Learn to write with precision, think strategically, communicate with clarity, and stay committed through the grind. The most effective litigators are those who embrace both the marathon and the moment.