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Sean Duddy

Sean Duddy, JD

Partner at Duddy Czarnecki

Sean Duddy is a seasoned attorney with a strong background in technology and litigation. He specializes in mass torts and class action cases. He is recognized for his innovative approach to legal challenges, having developed platforms to manage large-scale arbitrations and secure substantial settlements.

Experience and background

Sean has dedicated his legal career to tackling complex litigation, particularly at the intersection of technology and consumer rights. As a 2021 Elite Trial Lawyers Rising Star, he made significant strides in mass arbitration, helping his team secure over $100 million in consumer settlements.

Before founding Duddy & Czarnecki, Sean was instrumental in building the mass arbitration practice at Keller Postman. He successfully litigated thousands of cases on behalf of consumers, including those whose personal data was mishandled by tech companies, individuals tricked into paying for tax services, and gig economy workers who were wrongfully classified as independent contractors. Sean's work impacted the lives of many and helped shape the firm's operational and technological framework.

Before his time in private practice, Sean clerked for Judge Rudolph Contreras in the U.S. District Court for the District of Columbia, gaining invaluable insight into the judicial process. He also represented corporations in regulatory matters during his tenure at WilmerHale LLP, dealing with investigations by entities such as the SEC and the Financial Industry Regulatory Authority.

Education and achievements

  • J.D., University of Pennsylvania Law School (magna cum laude, Order of the Coif)

  • B.S., Ohio State University (summa cum laude)

  • Two-time captain, Ohio State Varsity Ice Hockey Team

  • Finalist for the NCAA Division I Senior CLASS Award