Isaac Rethy

Simpson Thacher & Bartlett LLP

$ $$$

Lexington Avenue 425
New York 10017 NY US

Isaac M. Rethy is Counsel in the Firm’s Litigation Department. Isaac represents clients in a wide range of high-profile complex commercial litigation matters, including securities, bankruptcy and insurance litigation. He also works on a number of significant pro bono issues, with particular focus on criminal justice reform, voting rights and immigration defense.

Isaac’s representative experience includes:

  • Obtaining New York Court of Appeals affirmance of ruling dismissing claims for breaches of representations and warranties as time-barred
  • Litigating federal class action lawsuits in Mississippi challenging discriminatory policing practices and the state’s lifetime voting ban on convicted individuals on constitutional grounds
  • Representing a major financial institution in litigation arising from the bankruptcy of the Polaroid Corporation and the aftermath of the Thomas Petters Ponzi scheme
  • Defeating an emergency motion by a U.S. Senate candidate on behalf of the League of Women Voters of Florida and Common Cause Florida in voting rights litigation

Isaac received his J.D., magna cum laude, from Georgetown University Law Center in 2009, where he was Articles Editor of the Georgetown Law Journal. He received his B.A. from Xavier University in 2005.


  • Georgetown University Law Center, 2009 J.D./Certificate in World Trade Organization Studies
    • magna cum laude; Articles Editor, Georgetown Law Journal
  • Xavier University , 2005 B.A.


  • New York 2010
  • U.S. District Court Eastern District of New York 2010
  • U.S. District Court Southern District of New York 2010
  • U.S. Court of Appeals for the Second Circuit 2018


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Lexington Avenue 425
New York 10017 NY US
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Lina Stillman

Broadway 42
New York 10006 NY US