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Cory S. Flashner


[email protected]



Cory is a white collar defense attorney in the firm’s Chambers ranked White Collar practice group, and a former federal and state prosecutor with extensive trial experience who specializes in representing individuals and companies in the financial services sector in investigations, enforcement actions and compliance related to financial laws. Cory uses his experience as a first chair litigator in over 75 state and federal jury trials and hundreds of grand jury proceedings to advise his clients on a variety of actions, from subpoena responses to plea negotiations to trial proceedings related to alleged financial crimes, and violations of securities laws, anti-money laundering laws and regulations. He also has extensive expertise in advising clients on FCPA compliance and due diligence, as well as drafting and implementing internal anti-money laundering and FCPA policies for clients looking to mitigate risk. In addition, Cory has a long history of representing broker-dealers before the SEC and DOJ, in both subpoena responses and enforcement proceedings and skillfully guides clients through such challenges with a deep understanding of potential civil, criminal and reputational impacts. As a former prosecutor and head of anti-money laundering for a global systemically important bank, Cory’s approach to legal challenges is holistic and draws on his unique experiences in the role of defense counsel, prosecutor and in-house counsel in complex disputes.

Cory also works with clients on navigating the complex regulatory and legal issues surrounding the cannabis industry at both the state and federal level. He helps guide investors, startups and individuals through this uncertain and evolving legal landscape, including counseling them on risk assessment, compliance measures, and helping to minimize business disruption. He has extensive experience in advising clients and individuals in the cryptocurrency industry on navigating the rapidly evolving legal landscape including counselling them on complex legal issues related to criminal and civil disputes, government investigations and regulatory compliance.

In addition to his robust white collar practice, Cory is an active member of the firm’s pro bono initiatives, where he works on a variety of different regional and national projects, including advising domestic violence shelters in understanding and responding to U.S. Immigration and Customs Enforcement actions.

Prior to joining Mintz, Cory was a vice president and the regional head of the anti-money laundering (AML) division for North America at a Boston-based global systemically important bank (G-SIB). His work encompassed supervising more than two dozen compliance professionals and providing oversight and guidance to the company’s North American business units on AML regulations, the Bank Secrecy Act, and the Office of Foreign Assets Control (OFAC) regulations. In addition, he negotiated and resolved matters before federal, state, and international regulatory bodies including FINRA, the Financial Crimes Enforcement Network (FinCEN), the Office of the Comptroller of the Currency (OCC), and the Federal Reserve Bank.

Between 2010 and 2016, Cory served as an Assistant US Attorney for the District of Massachusetts, where he investigated and indicted one of the largest pyramid schemes ever prosecuted by the US Department of Justice involving investors in 240 countries and over $3 billion in losses. Earlier, he worked in the homicide and senior trial units of the Suffolk County District Attorney’s Office in Boston, handling all aspects of homicide and high-profile felony cases. In addition to his extensive trial court and grand jury work, Cory argued before the Supreme Judicial Court of Massachusetts and succeeded in persuading the court to adopt the doctrine of forfeiture by wrongdoing. In 2008, Cory was the recipient of the Outstanding Superior Court Prosecutor Award from the Suffolk County DA’s Office.  

In law school, Cory served as a notes & comments editor of the Fordham Intellectual PropertyMedia & Entertainment Law Journal and senior director of Fordham Student Sponsored Fellowship. He was also a two-time recipient of the fellowship and was granted the Archibald R. Murray Public Service Award.

He coaches various Weston youth athletic teams, including baseball and wrestling.


  • Currently represents two defendants charged with fraud in relation to the ongoing College Admissions prosecution.
  • Represented CFO charged in $30+ million fraud scheme and secured disposition substantially more favorable than recommended by the Federal Guidelines. The sentencing judge remarked that he was “frankly surprised that [CFO’s] counsel was able to negotiate such a favorable agreement.”
  • Represented former professional athlete as a witness in a DOJ investigation related to the Foreign Corrupt Practices Act.
  • Represented numerous broker dealers in connection with various investigations and actions brought by the DOJ and SEC.
  • Represented CFO indicted in a $25 million fraud.
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DOJ’s Criminal Division Announces Key Policy Updates Regarding Compensation, Compliance Programs, and Monitors

March 7, 2023 | Blog | By Eoin Beirne, Cory S. Flashner, Edmund P. Daley, Nick A. LaPalme

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DOJ Issues Voluntary Self-Disclosure Policy for All United States Attorney’s Offices

February 24, 2023 | Blog | By Eoin Beirne, Cory S. Flashner, Edmund P. Daley, Nick A. LaPalme

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The Rise of Whistleblower Tips (and Rewards) for Crypto Sleuths

February 17, 2023 | Blog | By Cory S. Flashner, Adam Sisitsky, Edmund P. Daley

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Analyzing Health Care False Claims Act Cases

February 9, 2023 | Article | By Karen Lovitch, Brian Dunphy, Grady Campion, Kathryn Edgerton, Cory S. Flashner, Samantha Kingsbury, Kevin McGinty

The vast majority of False Claims Act recoveries in fiscal year 2022 came from health care–related cases, and new case filings remained high, despite an ongoing decline in health care FCA case volume. Mintz’s Health Care Enforcement Defense team explores FCA litigation trends using annual DOJ statistics and activity tracked in our database of health care whistleblower cases.
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FINRA to Examine Broker-Dealer Crypto Communications

December 1, 2022 | Blog | By Cory S. Flashner, Edmund P. Daley, Christopher D'Aliso

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NFTs: A Flash in the Crypto Pan or Virtual Gold? (Part 1)

August 2, 2022 | Blog | By Edmund P. Daley, Cory S. Flashner, Frank Gerratana

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News & Press

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Massachusetts Lawyers Weekly covered an article written by Members Cory Flashner, and Adam Sisitsky, and Associate Edmund P. Daley about the rise in cryptocurrency whistleblowers.
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Member Cory Flashner spoke to McKnights Long-Term Care News about a case of large scale COVID relief fraud at a nursing home in Iowa.
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In its second annual edition, 28 Mintz attorneys were named to Boston Magazine’s Top Lawyers list.
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In a recent article for The Real Estate Finance Journal, Member and Co-Chair of the firm’s Financial Services Practice, Pete S. Michaels, Member Cory S. Flashner, and Associate Alyssa C. Scruggs, explore the recent increased focus on money-laundering risks in residential real estate transactions, including an overview of regulatory efforts to prevent money laundering.
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Events & Speaking


2020 White-Collar Crime Conference

Boston Bar Association

Aloft Boston | Seaport District 401-403 D Street Boston, Massachusetts, 02210

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Recognition & Awards

  • Best Lawyers in America: Criminal Defense: White Collar (2021-2023)
  • Boston Magazine Top Lawyers – Criminal Defense-White Collar (2021 - 2022)
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  • Board Member, Healing Abuse Working for Change (HAWC) (2021)
  • Board Member, Weston Dads Foundation (2016 - present)
  • Vice President, Show-Me Wrestling Club
  • Secretary, New England Chapter, Fordham Law Alumni Association (2008 - 2015)
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Cory S. Flashner