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Sean Hayes

NY Attorney

Sean is rated a Top 100 lawyer; one of the Top International Lawyers in the world; and he was, recently, head of a team that was rated the top Dispute Resolution Law Firm for disputes in Asia.

Sean is, often, quoted by the New York Times, Wall Street Journal, Bloomberg and other leading new sources on matters facing Korea, China and the United States. He is engaged by clients for adversarial and non-adversarial business matters.

New York Attorney Sean Hayes grew up in Connecticut and New York to an Irish-immigrant father and an Italian mother. He is a U.S. and Irish National. He received his legal education in Korea, the United States and in the U.K.

Sean Hayes is the first non-Korean employed by the Korean Court System (Constitutional Court of Korea) and one of the first non-Koreans to be a full-time regular member of a Korean law faculty. Sean taught justices at the Constitutional Court of Korea, judges at courts throughout Korea and government officials international contract law, constitutional law and criminal procedure.

Sean is known, over his 17+ years working in the legal industry for his aggressive advocacy and candid NY-style street-smart advice.


  • Seoul National University, Ph.D. Cand.

  • University of London, International Law

  • QU School of Law, Juris Doctor

  • Santa Clara Law School, Summer Abroad

  • Fordham University/Fairfield University, B.A.

  • Notre Dame High School, West Haven, CT


  • Admitted to New York State Bar

  • Member, New York Southern District Court

  • Member, International Bar association

  • Member, Chartered Institute of Arbitrators

  • Member, NY Bar Association

  • Member, NY City Bar Association


  • One of only two non-Koreans rated a Top Attorney by LawAsia

  • Lead Dispute Resolution Law Firm of the Year

  • Who's Who in Franchise Law

  • Who's Who in the World

  • Rated Excellent (10) by AVVO

  • Best Advice Blog, K-Blog Awards

  • Top 25 Blog by LexisNexis

  • Top Blog in AVVO's listing of blogs

  • Who's Who in Entertainment Law


  • U.S. Political Question Doctrine Defined, American Journal of Constitutional Law (2015)

  • U.S. Political Question Doctrine Application to Korean Constitutional Law, Korean Const. Court Journal (2014)

  • Korean Franchising, A Global Guide, Practical Law, Thomson Reuters (2018)

  • Korean Employment & Labor Law, Global Legal Insights 6th Edition, Global Legal Group (2018)

  • The Korean Labor Market under the Moon Administration, 2018 Discovering Business, Allurentis (2018)

  • Korean Business in the Global Economy, Chapter in Book (2014)

  • Over 100 Op-Ed in various international publications

  • Quoted by the New York Times, Wall Street Journal, Bloomberg, Korea Times, Korean Herald and various other publications. 

  • Taught law classes for Santa Clara University; Seoul National University; Kookmin University, University for Peace; and the Supreme Court of Korea


  • English

  • Korean

  • LinkedIn
  • Facebook
  • Instagram
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