Marion Bachrach

Adjunct Professor of Law (Fall term)
Photo of Marion Bachrach
Contact Information
Cornell Law School
231 Hughes Hall
Ithaca, NY 14853-4901

Phone: (607) 255-0368
Fax: (607) 255-7193

Rachel Liseno
Cornell Law School
213 Myron Taylor Hall
Ithaca, NY 14853-4901

Professional Biography

Marion Bachrach has extensive experience as a litigator in white-collar criminal investigations, trials and appeals as well as complex civil suits. She is a partner in the law firm of Thompson & Knight LLP, where she is part of the firm’s fraud, litigation and cybersecurity practice. She has an active practice on behalf of institutional and individual clients and has had considerable experience counseling professionals, particularly lawyers.

After graduating from the Cornell Law School, she clerked for the Honorable Joseph L. Tauro, United States District Judge for the District of Massachusetts. She then joined Paul, Weiss, Rifkind, Wharton & Garrison, where she worked as a litigator. Thereafter, she served as an Assistant U.S. Attorney in the Eastern District of New York for six years. During that time, she tried and supervised significant criminal prosecutions and held the additional positions of Chief of General Crimes and Deputy Chief of the Criminal Division. In 1986, she returned to private practice, specializing in white-collar criminal and fraud-related matters. She co-founded and built the law firm of DePetris & Bachrach, LP, where she practiced for more than 20 years.

She is a founding member of the New York Council of Defense Lawyers as well as a former member of its Board of Directors and the former co-chair of its Sentencing Guidelines Committee. She serves as an appointed member of the Second Circuit CJA Committee. She teaches a course on Legal and Ethical Obligations in Complex Litigation as an adjunct faculty member at Columbia Law School. She has taught trial advocacy as part of the Intensive Trial Advocacy Program at Cardozo Law School, and has served on numerous panels on white-collar crime issues, including on cybersecurity. She is the author of a chapter on False Testimony by Government Witnesses in the book Defending Federal Criminal Cases (Law Journal Press).

Significant cases she has litigated or argued in private practice and in government service include: United States v. Watts, 786 F.3d 152 (2d Cir. 2015); United States v. Stein, 435 F. Supp.2d 330 (S.D.N.Y. 2006) and 495 F.Supp.2d 390 (S.D.N.Y. 2007), aff’d United States v. Stein, 541 F.3d 130 (2d Cir. 2008); United States v. Tenzer, 213 F.3d 34 (2d Cir. 2000); United States v. Manko, 979 F.2d 900 (2d Cir. 1992); United States v. Lizza Industries, Inc., 775 F.2d 492 (2d Cir. 1985); and United States v. McKeon, 738 F.2d 26 (2d Cir. 1984).


B.A., Syracuse University, 1972
M.A., Middlebury/Université Paris, 1973
J.D., Cornell Law School, 1977