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Isabelle Kirshner

Ms.

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Ms.
New York, NY
work: 212-922-1080

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New York

Bio

Isabelle A. Kirshner is one of New York’s premier criminal defense attorneys. She has won acquittals for her clients in both state and federal court. Isabelle has more than thirty years of experience defending individuals and entities in a wide range of criminal matters including investigations and prosecutions relating to securities fraud, money laundering, bank fraud, tax fraud, as well as distribution of crystal methamphetamine, opioids, and allegations of sexual misconduct. She has represented clients at every stage of criminal proceedings, from the inception of a criminal investigation through indictment and trial.

Isabelle has tried cases involving a wide range of criminal charges, including one of the largest criminal tax shelter cases ever brought by the U.S. Department of Justice. Among her successes is an acquittal of murder and racketeering charges in a multi-defendant case in federal court, acquittal of all charges in a conspiracy case in which she successfully asserted an entrapment defense on behalf of her client and an acquittal of all charges in a federal Hobbs Act and conspiracy case.

She has successfully represented a number of individuals in high profile matters, including the former Attorney General of the State of New York.

Isabelle served as an Assistant District Attorney in the Manhattan District Attorney’s Office from 1982 to 1986. Thereafter, she entered the private sector as a criminal defense attorney, and joined Clayman & Rosenberg in 2005.

Isabelle sits on the Peer Review Committee for the Criminal Justice Act and the Criminal Justice Advocacy Board for the United States District Court for the Southern District of New York. She serves on the Central Screening Committee for the 18B Panel for New York County. She served as a member of District Attorney Cyrus Vance’s transition committee.  She is a Fellow in the American College of Trial Lawyers.

In 2018, Isabelle was the recipient of Gideon’s Promise Equalizer Award and in 2019, she received the New York State Association of Criminal Defense Lawyers Thurgood Marshall Practitioner of the Year Award. In 2020, she was awarded the NYCDL Norman Ostrow award. 

Practice Areas

  • Corporate Crime
  • Cybercrime
  • Foreign Corrupt Practices Act
  • Government Contracting, Bid Protests and the False Claims Act
  • Government Investigations
  • Healthcare
  • Insider Trading
  • Internal Investigations
  • Securities Litigation
  • State Attorney Generals
  • Trials
  • White Collar Crime