Jason Brown

Partner, New York

Jason Brown

Partner, New York

Jason Brown is a partner in Cohen & Gresser’s New York office. His practice focuses on white collar criminal and complex civil litigation, and he has extensive experience in matters relating to securities fraud, government contract fraud, antitrust, employment discrimination, and privacy and data security.

Prior to joining the firm, Jason served as Chief Deputy of the New York State Attorney General’s Office, where his responsibilities included overseeing the office’s criminal division. He also spent nearly a decade in the U.S. Attorney’s Office for the Eastern District of New York, where he served, among other positions, as Chief of the Criminal Division. He was previously a partner at Ropes & Gray, and the managing partner of the New York office of Holland & Knight.

Jason has been ranked in Chambers USA’s white collar crime and government investigations category, and recognized by The Legal 500’s U.S. guide in its coverage for corporate investigations and white collar criminal defense. He has also been recognized by The Best Lawyers in America for white collar criminal defense and is regularly named by Super Lawyers to its New York Metro Super Lawyers list.

Jason is a cum laude graduate of Harvard Law School and received his undergraduate degree in philosophy from Princeton University.

Jason Brown is a partner in Cohen & Gresser’s New York office. His practice focuses on white collar criminal and complex civil litigation, and…

Education

Harvard Law School (J.D., cum laude, 1985); Princeton University (A.B., 1981)

Bar Admissions

New York State

Cohen & Gresser is pleased to announce that 25 of the firm’s lawyers are included on the 2024 New York Metro Super Lawyers list and 13 lawyers are included on the 2024 New York Metro Rising Stars list across a range of practice areas.

Super Lawyers once again named C&G co­-founder Mark S. Cohen and partner Jonathan S. Abernethy to the Super Lawyers list of the Top 100 lawyers in the New York metropolitan area.

Super Lawyers and Rising Stars are annual lists of outstanding lawyers who have attained a high degree of peer recognition and professional achievement. Only 5 percent of the lawyers in each state are selected as Super Lawyers, and only 2.5 percent are selected as Rising Stars.

The C&G lawyers recognized on the New York Metro Super Lawyers list are:

The C&G lawyers recognized on the New York Metro Rising Stars list are:

   
Best Lawyers in America recognizes 12 Cohen & Gresser attorneys in its newly-published guide. The prestigious publication—now in its 31st edition—evaluates and selects lawyers through an extensive peer-review process, ensuring that the recognition reflects the consensus of top legal professionals regarding the expertise and abilities of their colleagues within the same geographic and practice areas.

Five C&G attorneys are recognized by their peers as “Best Lawyers” in their respective practice areas:

Seven C&G attorneys are recognized as “Best Lawyers: Ones to Watch” in their respective practice areas:

The Legal 500 United States 2024 edition has recognized Cohen & Gresser’s New York and Washington, D.C. offices for excellence across multiple categories, including Antitrust LitigationCorporate Investigations and White-Collar CrimeCommercial Litigation, and Securities Litigation. Testimonials included in the guide praise the firm for being a “litigation powerhouse” and for its “devotion to the needs of the clients, its creativity, and its perseverance.”

Mark Cohen is once again recognized as a Leading Partner in both Securities Litigation and Corporate Investigations & White-Collar Crime: Advice to Individuals.

The 2024 guide also recognizes Lawrence T. GresserJonathan AbernethyJason BrownS. Gale Dick, Christian EverdellJeffrey Lang, Alisa LuMelissa MaxmanDouglas PepeJohn RobertiDaniel Tabak, and Ronald Wick as recommended lawyers.

This 17th edition of The Legal 500 United States guide, which identifies the “true superstars of the profession,” involved a detailed assessment of various factors, including work conducted by law firms over the past 12 months and historically; experience and depth of teams; and client feedback.

Founded in 2002, Cohen & Gresser’s New York office serves as the firm’s headquarters. Our New York attorneys are particularly strong in complex litigation, investigations, and transactions. The firm’s Washington, D.C. office handles a range of commercial litigation and regulatory enforcement actions, with a focus on domestic and foreign antitrust issues.

Cohen & Gresser earned multiple practice area and individual lawyer rankings in the 2024 edition of Chambers USA, receiving high praise for having an “incredible collection of brilliant, hard-working lawyers” who are “focused on providing clear and easy to understand guidance and advice."

The firm’s White Collar Defense & Regulation practice is once again ranked in the guide, maintaining its position as one of the “Elite” firms in the Litigation: White-Collar Crime & Government Investigations category. Chambers recognized the firm’s “strong regulatory investigations and enforcement practice,” specifically highlighting its “expert financial services practice which offers particular strengths in FINRA and SEC proceedings.” Client feedback praises the team for its “strong expertise with the DOJ and with prosecutors.”

The Commercial Litigation practice is also ranked in the Litigation: General Commercial: Highly Regarded category, receiving high praise from clients for having a “strong understanding of the client’s needs” and for being “smart, creative and willing to try difficult strategies and aggressive approaches.”

The firm’s Antitrust & Competition practice is ranked in the Antitrust category, with Chambers noting that “Cohen & Gresser houses a strong practice across a range of antitrust disputes [including] sophisticated litigation.” Client feedback praises the team for being “creative and responsive” and having “strong knowledge of antitrust class actions.”

Partners throughout Cohen & Gresser’s US practices also earned individual rankings in the following categories:

Antitrust: Litigation Specialists (DC)                                  

Melissa H Maxman

John Roberti

Litigation: General Commercial (NY)

Lawrence T Gresser

Litigation: Securities (NY)

Mark S Cohen

Litigation: White-Collar Crime & Government Investigations (NY)

Jonathan S Abernethy

Jason Brown

Mark S Cohen

Christian R Everdell

Chambers is the world’s leading legal data and analytics provider, highlighting the top lawyers and law firms across the USA based on in-depth research that includes reference feedback, client satisfaction, reputation in the market, peer knowledge, and other discreet independent market sources.

Cohen & Gresser is pleased to announce that 29 of the firm's lawyers are included on the 2023 New York Metro Super Lawyers list and 11 lawyers are included on the 2023 New York Metro Rising Stars list across a range of practice areas.

Super Lawyers named C&G co­founder Mark S. Cohen one of the Top 10 lawyers in the New York metropolitan area. Partners Jonathan S. Abernethy and Karen H. Bromberg have also been named to the Super Lawyers list of the Top 100 lawyers in the New York metropolitan area. Additionally, Karen has been recognized as one of the Top 50 women lawyers within the same region.

Super Lawyers and Rising Stars are annual lists of outstanding lawyers who have attained a high degree of peer recognition and professional achievement. Only 5 percent of the lawyers in each state are selected as Super Lawyers, and only 2.5 percent are selected as Rising Stars.

The C&G lawyers recognized on the New York Metro Super Lawyers list are:

The C&G lawyers recognized on the New York Metro Rising Stars list are:

Best Lawyers in America recognized 14 Cohen & Gresser lawyers in its newly-published 2024 guide. The publication—now in its 30th edition—evaluates and selects lawyers based entirely on peer review. The survey process is “designed to capture, as accurately as possible, the consensus opinion of leading lawyers about the professional abilities of their colleagues within the same geographical area and legal practice area.”

Six C&G attorneys are recognized by their peers as “Best Lawyers” in their practice areas:

Eight attorneys are recognized as “Best Lawyers: Ones to Watch” in their practice areas:

The Legal 500 United States 2023 edition has recognized Cohen & Gresser’s New York and Washington, D.C. offices for legal excellence in Antitrust Litigation, Corporate Investigations and White-Collar Crime, Commercial Litigation, and Securities Litigation. Partner Mark Cohen received recognition as a Leading Lawyer in Securities Litigation and Corporate Investigations and White-Collar Crime: Advice to Individuals. The 2023 guide also recognized partners Lawrence T. Gresser, Jonathan Abernethy, Jason Brown, S. Gale Dick, Jeffrey Lang, Melissa Maxman, Douglas Pepe, John Roberti, Daniel Tabak, and Ronald Wick as recommended lawyers. This 16th edition of The Legal 500 United States guide involved a detailed assessment of various factors, including work conducted by law firms over the past 12 months and historically; experience and depth of teams; and client feedback. The guide highlights C&G’s “widespread global footprint” as being “crucial on multifaceted disputes work.” It praises the firm’s “ability to handle high-end and top-of-the-line cases” and “strength in bet-the-company litigation, contract disputes, fraud, and the financial services sector.” Founded in 2002, Cohen & Gresser’s New York office serves as the firm’s headquarters. Our New York attorneys are particularly strong in securities litigation and arbitration, international arbitration, regulatory investigations, patent litigation, and M&A transactions. The firm’s Washington, D .C. office handles a range of commercial litigation and regulatory enforcement actions, with a focus on domestic and foreign antitrust issues.
International law firm Cohen & Gresser is pleased to announce that ten of its New York-based lawyers have been recognized by their peers in the 2023 edition of the Best Lawyers in America. Selection in the 29th edition of the guide “is based entirely on peer review.” The survey process is “designed to capture, as accurately as possible, the consensus opinion of leading lawyers about the professional abilities of their colleagues within the same geographical area and legal practice area.”

Six C&G attorneys have been recognized by their peers as a “Best Lawyer” in their practice areas:

Four C&G attorneys have been recognized as “Best Lawyers: Ones to Watch” in their practice areas:
International law firm Cohen & Gresser has been recognized in The Legal 500 United States 2022 guide for “bringing excitement and innovation to the practice of law.” The 2022 guide recognizes more C&G lawyers and practice areas than ever before, including a 58% increase in individual attorney recommendations and new rankings at the practice and “Leading Lawyer” levels.

The guide highlights C&G’s “elite group of practitioners” and use of advanced machine learning techniques and notes that the firm “handle[s] cases that are every bit as complex and challenging as big, national law firms.” Commentators noted that the firm “punches way above its weight” in litigation and investigation matters.

C&G Co-Founder Mark S Cohen is one of only two lawyers in the United States to be recognized as a “Leading Lawyer” in both Securities Litigation: Defense and Corporate Investigations and White-Collar Criminal Defense. Commentary from The Legal 500 recognizes Mark as a “top-tier advocate” who is “at the top of the profession” and “can litigate with the best of them.”

For the first time, C&G’s Antitrust practice has been recognized in Antitrust: Civil Litigation/Class Actions: Defense for its handling of class action cases concerning allegations of cartel behavior, monopolization, and other exclusionary conducts. The Legal 500 cites the leadership of Melissa H Maxman and the addition of “heavyweight” lawyer John Roberti as key reasons for the practice’s recognition.

C&G is again recognized in the Advice to Individuals and Advice to Corporates categories of the Corporate Investigations and White-Collar Criminal Defense section. The Legal 500 commentary notes that the practice is led by “partners with deep experience who obtain excellent results for clients” and is “well placed to handle transatlantic cases” with offices in New York, Paris, and London, and has “particular expertise in financial crime, antitrust enforcement, public corruption, and tax issues.”

The guide has also recognized C&G once again in the General Commercial Disputes category, praising the practice for showing the “discipline and focus necessary to win a case.” Testimonials from the guide highlight the team’s ability to “handle large and complex matters” with “experienced people, good judgment,” and “better use of technology.”

For the 10th consecutive year, C&G has been recognized in the Securities Litigation: Defense category for the firm’s “expertise in the financial services sector” and “recognized trial expertise” in cross-border and domestic securities litigation and enforcement proceedings. The Legal 500 emphasizes the team’s “strong practitioners” and “attentiveness to clients” in the 2022 guide.

Recognized Practices:

  • Antitrust: Civil Litigation/Class Actions: Defense
  • Corporate Investigations and White-Collar Criminal Defense: Advice to Individuals
  • Corporate Investigations and White-Collar Criminal Defense: Advice to Corporates
  • General Commercial Disputes
  • Securities Litigation: Defense
Recognized Individuals:

Antitrust: Civil Litigation/Class Actions: Defense

  • Melissa H Maxman
  • John Roberti
  • Ronald F Wick
Corporate Investigations and White-Collar Criminal Defense

  • Jonathan S Abernethy
  • Jason Brown
  • Mark S Cohen
  • S Gale Dick
  • Jeffrey I Lang
  • Melissa H Maxman
  • Reggie Schafer
General Commercial Disputes

  • Mark S Cohen
  • S Gale Dick
  • Lawrence T Gresser
  • Melissa H Maxman
  • Daniel H Tabak
Securities Litigation: Defense

  • Jonathan S Abernethy
  • Mark S Cohen
  • S Gale Dick
  • Lawrence T Gresser
About The Legal 500:

The Legal 500 analyzes the capabilities of law firms across the world. Its rankings “highlight the practice area teams who are providing the most cutting edge and innovative advice to corporate counsel.”

Cohen & Gresser is pleased to announce that 37 of the firm's New York and Washington D.C.­based attorneys have been named to the 2021 Super Lawyers List across a wide range of practice areas. C&G co-­founder Mark S Cohen and partners Jonathan S Abernethy and Daniel H Tabak have also been named to the Super Lawyers list of the top 100 lawyers in the New York metropolitan area, and partner Karen H Bromberg has been recognized as one of the top 50 women lawyers in the New York metropolitan area.

Super Lawyers ranks outstanding lawyers who have attained a high degree of peer recognition and professional achievement. Only five percent of the lawyers in each state are selected as Super Lawyers, and only 2.5 percent are selected as Rising Stars.

Super Lawyers

Jonathan S Abernethy: Criminal Defense: White Collar

Kwaku Andoh: Mergers & Acquisitions

Elizabeth Bernhardt: Business Litigation

Thomas E Bezanson: Personal Injury – Products: Defense

Colin C Bridge: Criminal Defense: White Collar

Karen H Bromberg: Intellectual Property

Jason Brown: Criminal Defense: White Collar

Joanna K Chan: Securities Litigation

Mark S Cohen: Business Litigation

S Gale Dick: Business Litigation

Christian R Everdell: Criminal Defense: White Collar

Lawrence T Gresser: Business Litigation

Oliver S Haker: Business Litigation

Johannes Jonas: Mergers & Acquisitions

Nicholas J Kaiser: Real Estate

Jeffrey I. Lang: Business Litigation

Melissa H Maxman: Antitrust Litigation

Ellen Paltiel: General Litigation

Nathaniel P T Read: Business Litigation

Bonnie J Roe: Securities & Corporate Finance

Stephen M Sinaiko: Business Litigation

C Evan Stewart: Securities Litigation

Daniel H Tabak: Business Litigation

Scott D Thomson: Business Litigation

Alexandra Wald: Business Litigation

Ronald F Wick: Antitrust Litigation

Rising Stars

Luke Appling: Civil Litigation

Sharon L Barbour: Criminal Defense: White Collar

Drew S Dean: General Litigation

William Kalema: Business Litigation

Sri Kuehnlenz: Civil Litigation

Winnifred A Lewis: Securities Litigation

Marvin J Lowenthal: Criminal Defense: White Collar

Barbara K Luse: Criminal Defense: White Collar

Matthew V Povolny: Business Litigation

Benjamin Zhu: Criminal Defense: White Collar

International law firm Cohen & Gresser is pleased to announce that eight of its lawyers have been recognized in the 2022 edition of the Best Lawyers in America. Selection in the 28th edition of the guide is based entirely on peer-review surveys in which tens of thousands of leading lawyers evaluate their professional peers.

Five C&G attorneys have been recognized by their peers as a “Best Lawyer” in their practice areas:

  • Jonathan S. Abernethy – Criminal Defense: White-Collar
  • Thomas E. Bezanson – Commercial Litigation and Product Liability Litigation: Defense
  • Jason A. Brown – Criminal Defense: White-Collar
  • Mark S. Cohen – Criminal Defense: White-Collar
  • Evan Stewart – Litigation – Securities

Three C&G attorneys have been recognized as “Best Lawyers: Ones to Watch” in their practice areas:

  • Sharon L. Barbour – Criminal Defense: White-Collar
  • Winnifred A. Lewis – Commercial Litigation
  • Alexandra K. Theobald – Commercial Litigation

International law firm Cohen & Gresser has been once again recognized in The Legal 500 United States. The 2021 guide highlights C&G for its financial services strength – emphasizing the firm’s “understanding of complex financial products and the operations of the financial services sector” – and its “extensive experience in jury and bench trials at the federal and state level.”

Client commentary highlights C&G as “a cut above” and “very effective at knowing their audience, staying on message, and telling a persuasive and winning story.”

The Legal 500 has recognized C&G in both the Advice to Individuals category and Advice to Corporates category of the Corporate Investigations and White-Collar Criminal Defense section. The guide notes the practice’s deep bench that “includes former federal and state prosecutors, and former in-house attorneys, many of whom are active litigators, and have unique experience of federal enforcement bodies.”

C&G has also been recognized in the General Commercial Disputes category. The practice stands out for its capacity to handle “a diverse range of commercial disputes across numerous industries, including finance, software, technology and healthcare” and its ability to “handle complex, sophisticated matters in a cost-effective manner.”

For the ninth consecutive year, C&G has been recognized by The Legal 500 in the Securities Litigation: Defense category for its “work on the defense of broker-dealers, investment advisors, hedge funds, and private equity funds in securities litigation and FINRA arbitrations.”

In addition, Mark S Cohen is once again ranked as a “Leading Lawyer” for Securities Litigation: Defense. One client describes Mark as “one of the best trial lawyers I have seen” and goes on to recognize him for his professionalism, responsiveness, excellent judgment, and high-quality work.

Recognized Practices:

  • Corporate Investigations and White-Collar Criminal Defense: Advice to Individuals
  • Corporate Investigations and White-Collar Criminal Defense: Advice to Corporates
  • General Commercial Disputes
  • Securities Litigation: Defense
Recognized Individuals:

Corporate Investigations and White-Collar Criminal Defense General Commercial Disputes Securities Litigation: Defense

Cohen & Gresser is pleased to announce that 35 of the firm's New York and Washington D.C.­based attorneys have been named to the 2020 Super Lawyers List across a wide range of practice areas. C&G co-­founder Mark S Cohen and partners Jonathan S Abernethy and Daniel H Tabak have also been named to the Super Lawyers list of the top 100 lawyers in the New York metropolitan area, and partner Karen H Bromberg has been recognized as one of the top 50 women lawyers in the New York metropolitan area.

Mark S Cohen, Jonathan S Abernethy, Jason Brown, C Evan Stewart, and Thomas E Bezanson were recognized in The Best Lawyers in America‘s 2021 New York listings. Mark, Jonathan, and Jason were recognized for white collar criminal defense; Evan for securities litigation; and Tom for commercial litigation and product liability litigation defense. Additionally, Sharon L Barbour, Winnifred A Lewis, and Nicole Dhir were recognized in the New York list of The Best Lawyers in America: Ones to Watch. Sharon was recognized for white collar criminal defense; Winnifred for commercial litigation; and Nicole for commercial litigation and securities litigation.

Mark S Cohen, Jason Brown, C Evan Stewart, and Thomas E Bezanson were recognized in The Best Lawyers in America's 2020 New York listings. Mark and Jason were recognized for white collar criminal defense; Evan for securities litigation; and Tom for commercial litigation and product liability litigation defense.
The Legal 500 has once again recognized Cohen & Gresser in its United States guide. The firm is recognized for its excellence in the following categories:
  • Corporate Investigations/White Collar
  • Corporate Investigations/White Collar – Advice to Individuals
  • General Commercial Disputes
  • Securities Litigation Defense
The Legal 500 notes that C&G has “impressive cross border capabilities and is often retained by clients in multijurisdictional disputes” and that our disputes team members are “true litigators, focused, and thoughtful - no stone is left unturned.”

Cohen & Gresser announces the expansion of the firm’s White Collar Defense & Regulation, Litigation & Arbitration, and Privacy & Data Security practices with the addition of partner Jason Brown to the New York office. His practice focuses on white collar criminal and complex civil litigation, and he has extensive experience in matters relating to securities fraud, government contract fraud, antitrust, and privacy and data security. 

Partners Jason Brown and Bonnie J. Roe, and associate Marvin J. Lowenthal, were joined by Tracy Pulito of Interpublic Group in this virtual Cybersecurity CLE presentation hosted in partnership with the Association of Corporate Counsel, Westchester and Southern Connecticut Chapter. The panel addressed the corporate governance aspects of cybersecurity, including SEC disclosure rules and managing liability when a cyber incident occurs.

Jason Brown participated on a panel titled "Consumer Protection and the State Attorneys General" at COMPLY2018.