Attorney Profiles



Mark I. Cohen began his legal career in 1985 as an Assistant District Attorney in the Office of The Honorable Mario Merola, Bronx County District Attorney, where he served as a trial attorney in the White Collar Crime, Rackets and Investigation Division.

Thereafter, Mr. Cohen was an associate attorney with Mound Cotton & Wollan, a prestigious litigation firm in Manhattan where he handled a variety of complex fraud matters and defended international corporations and criminal defendants.

In late 1990, Mr. Cohen left Mound Cotton & Wollan to start the Law Office of Mark I. Cohen, his own Criminal Defense practice in Manhattan. By 1995, Mr. Cohen became a member of Cohen, Frankel & Ruggiero, LLP, a boutique Criminal Defense and Real Estate firm, and since then has been in partnership with Peter M. Frankel, Esq. and Louis J. Ruggiero, Esq.

Since 1990 Mr. Cohen has maintained offices at 20 Vesey Street outside the World Trade Center in Manhattan’s financial district.   He handles criminal and corporate investigations and criminal litigation in the United States District Courts and New York State Courts. He also represents clients in administrative litigation proceedings against a variety of United States, New York State and New York City agencies. Mr. Cohen is fluent in Spanish.


Professional Development:


Bachelor of Arts in Political Science

State University of New York at Binghamton


Juris Doctor

Hofstra University


Admitted to practice in New York State


Admitted to practice in United States District Courts

Southern and Eastern Districts of New York


  • American Bar Association, 1986 – Present
  • National Association of Criminal Defense Attorneys, 1991 – Present
  • New York State Association of Criminal Defense Attorneys, 1991 – Present
  • New York State Bar Association, 1991 – Present
  • New York City Criminal Bar Association, 1991 – Present
  • New York County Lawyers’ Association, 1991 – Present


Kevin A. Potter

Kevin A. Potter joined Cohen, Frankel & Ruggiero, LLP in May of 2018 after completing his clerkship with the Honorable Howard R. Lloyd in the United States District Court for the Northern District of California. Kevin attended the University of Michigan Law School on a merit scholarship, where he served as an Article Editor for the Michigan Journal of Gender & Law and graduated cum laude. As a student attorney in the Federal Appellate Litigation Clinic, he briefed and argued a direct appeal to the Sixth Circuit from a complex fraud case. U.S. v. Churn, 800 F.3d 768 (2015). As an intern for the Federal Defenders of San Diego, Inc., he worked on a variety of federal criminal cases. He also interned for the Honorable Laurie J. Michelson in the United States District Court for the Eastern District of Michigan. Kevin is admitted to practice in California and New York State.

Schedule an Appointment

Mark I. Cohen
New York City Criminal Defense Attorney

20 Vesey Street
Suite 1200
New York, NY 10007

Phone: (Hablamos Español)
(Emergency/New Arrest only)

Office Hours:
Monday through Saturday by appointment 212-732-0002
Emergency assistance 24 hours daily 917-414-8585

Emergency Contact

We are available 24 hours to provide all necessary criminal defense services.

If you or someone you know has been arrested, please call/text Mr. Cohen on his emergency number 917-414-8585 or email

Hablamos Español

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