Stephanie Tsay, Richards Kibbe & Orbe attorney photo

Stephanie A. Tsay

F:  917.344.8932


Stephanie Tsay is a member of the firm’s Litigation Department. She concentrates her practice in complex civil litigation, government and regulatory matters, internal investigations and white collar criminal defense. She has represented clients in investigations conducted by the Department of Justice, the Securities and Exchange Commission the Commodity Futures Trading Commission, and the New York Attorney General, among other government agencies, relating to residential mortgage-backed securities, environmental and financial fraud, regulatory disclosures and market manipulation. Ms. Tsay has also represented pro bono clients in post-conviction criminal appeals, federal sentencing, immigration matters, marital and custody disputes, and land use matters.

Prior to joining RK&O, Ms. Tsay was an associate at Gibson, Dunn & Crutcher LLP and clerked for the Honorable Kiyo A. Matsumoto of the United States District Court for the Eastern District of New York. Ms. Tsay is admitted to practice in the State of New York, the Southern District of New York and the Eastern District of New York.


  • Multiple senior level individuals in connection with criminal investigations by the Department of Justice into environmental fraud.
  • A former trader in extradition and defense strategy related to microcap stock manipulation prosecution.
  • Head trader in connection with Treasury investigations by Department of Justice, Securities and Exchange Commission and Commodities Futures Trading Commission.
  • The Audit Committee of a public company in internal and SEC investigations into alleged accounting fraud.
  • A former trader in DOJ and SEC investigations and prosecutions of alleged false statements in RMBS trading (so-called “Litvak” investigations).
  • International financial institutions in cross-border litigation involving the enforcement of loan guarantees, resulting in full recovery of unpaid principal, interest, and associated fees.
  • Securities professionals in connection with commercial securities litigations.

Before joining RK&O, Ms. Tsay worked on such matters as:

  • A former executive in a global antitrust and obstruction of justice investigation, which resulted in a very favorable outcome.
  • A securities firm sued by five Wisconsin school districts alleging fraud in the sale of $200 million in synthetic CDOs, and a cross-claim by placement agent relating to those CDOs.
  • The board of directors of a multi-national oil and gas company in connection with a DOJ environmental criminal investigation.
  • A wrongly convicted individual in state collateral proceedings to vacate a judgment of conviction based on newly discovered evidence.

Honors & Awards

  • Selected to participate in the Leadership Council on Legal Diversity (LCLD) Pathfinder Program, part of a growing organization of more than 285 corporate chief legal officers and law firm managing partners who are personally committed to creating a diverse legal profession (2018). 

Professional & Community Affiliations

Member, Federal Bar Council Inn of Court Event Committee - Red Party, Her Justice Member, RK&O Diversity Committee


Practice Areas
  • Honorable Kiyo A. Matsumoto, United States District Court for the Eastern District of New York 
  • Stanford Law School, J.D., 2011
  • Cornell University, B.A., 2006
Bar & Court Admissions
  • New York
  • United States District Court for the Eastern District of New York
  • United States District Court for the Southern District of New York