Sean M. O'Brien
Sean O’Brien is a trial and appellate litigator whose practice spans state and federal courts across the country.
 
As a member of the Consumer Financial Services Litigation Practice Team, Sean defends members of the financial services industry and advises consumer-facing businesses in complex individual and class action claims brought pursuant to the Fair Debt Collection Practices Act, Fair Credit Reporting Act, Telephone Consumer Protection Act, and other consumer-oriented statutes. Sean also provides guidance to clients in developing compliance protocols that reflect state and federal mandates, in addition to navigating regulatory enforcement actions.
 
As a member of the Business and Commercial Litigation Practice Team, Sean handles a variety of commercial litigation matters, including breach of contract claims, commercial torts, corporate governance and shareholder litigation, and bankruptcy-related litigation. Sean provides guidance to clients facing complex legal challenges and is adept at resolving matters quickly and efficiently.  Sean also works closely with the Sports, Entertainment and Hospitality Industry and Cannabis Practices, helping to advise clients embroiled in disputes that have, or could potentially, lead to litigation.
 
Sean serves on the Firm’s Pro Bono Advisory Committee and is a member of the Western District of New York’s Pro Bono Program. 

Articles & Publications


ADMITTED TO PRACTICE
  • New York
  • New Jersey
  • U.S. Bankruptcy Court, Western District of New York
  • U.S. District Court, District of New Jersey
  • U.S. District Court, Eastern District of New York
  • U.S. District Court, Eastern District of Wisconsin
  • U.S. District Court, Northern District of Illinois
  • U.S. District Court, Southern District of New York
  • U.S. District Court, Western District of Arkansas
  • U.S. District Court, Western District of Michigan
  • U.S. District Court, Western District of New York

Education
  • University at Buffalo School of Law, J.D., cum laude, 2013
  • Bates College, B.A., 2009

Honors & Awards
  • Pro Bono Award, U.S. District Court, Western District of New York, 2025
  • Upstate New York SuperLawyers®, Rising Star, 2019-2024
  • The Best Lawyers in America©, 2027
    • The Best Lawyers in America: Ones to Watch©

Community Involvement
  • Erie County Bar Association, Volunteer Lawyers Project, Board of Directors
  • Associate Village Justice, Village of Orchard Park
  • South Buffalo Community Table, Board Member
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