Mary E. Toscano is Co-Chair of the Sills Cummis & Gross White Collar Criminal Defense Practice Group and a Member of the Firm’s Litigation, Corporate Investigations and Integrity, and Tax Fraud and Controversy Practice Groups. An experienced litigator, she concentrates her practice on defending individuals and companies who are the focus of white collar criminal investigations and RICO actions. Her experience includes all aspects of litigation including, investigation, pre-trial motions, plea-negotiations, trial and post-trial proceedings. She has tried multiple cases to verdict.

Prior to joining the Firm, Ms. Toscano served as a federal prosecutor in the U.S. Attorney’s Office for the District of New Jersey, where she was the Deputy Chief of the Criminal Division. Her diverse caseload included white collar crimes, tax fraud, wire and mail fraud, money laundering and complex RICO matters, among others. During her tenure as an Assistant U.S. Attorney, Ms. Toscano held a number of other supervisory roles, including supervising the unit in which new Assistant U.S. Attorneys were trained to be federal prosecutors in the District of New Jersey. Ms. Toscano received the Attorney General’s Award for Excellence in Management in 2020 and the Honorable Patty Shwartz Leadership Award in 2018. In October 2019, Mayor Ras Baraka recognized Ms. Toscano for her impact on the City of Newark by making it a safer community through the reduction of violent crime.

Previously, Ms. Toscano served as an Honors Program trial attorney in the U.S. Department of Justice and an appellate court attorney in the Appellate Division of the New York State Supreme Court.


  • Litigation
  • Corporate Investigations and Integrity
  • Tax Fraud and Controversy
  • White Collar Criminal Defense

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Court Admissions

  • U.S. District Court, District of New Jersey
  • U.S. Court of Appeals, District of Columbia
  • U.S. Court of Appeals, First Circuit



Rankings and Recognition

  • Selected for inclusion in:
  • The Best Lawyers in America®* 2023, Commercial Litigation; Criminal Defense: White-Collar

* See Award Methodology. No aspect of this advertisement has been approved by the Supreme Court of New Jersey.


  • Trustee, The Association of the Federal Bar of New Jersey

  • Trustee, Essex County Bar Association

  • Member, New Jersey State Bar Association

  • Member, New Jersey Women Lawyers Association

  • Member, Association of Criminal Defense Lawyers of New Jersey

  • Member, Women’s White Collar Defense Association – New Jersey Chapter

  • Board Member, Daniel Anderl Judicial Protection Project

  • Board Member, Newark Police Foundation


  • J.D., State University of New York at Buffalo School of Law, cum laude

    Managing Editor, Buffalo Law Review

  • B.A., Georgetown University, magna cum laude

Bar Admissions

  • New Jersey
  • New York