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Professional background
Biography image

Emily J.Mathieu

PartnerVice Chair, Business LitigationNew York Co-Chair, Diversity, Equity & Inclusion Initiativemoc.eniHnospmohT@ueihtaM.ylimE
New York

O 212.908.3963

Emily J.Mathieu

Vice Chair, Business LitigationNew York Co-Chair, Diversity, Equity & Inclusion Initiativemoc.eniHnospmohT@ueihtaM.ylimE
New York

O 212.908.3963

Focus Areas

Financial Services

  • Representing a bank in action to recover losses from fraud and breach of contract in connection with a merchant account used to process fraudulent credit card transactions
  • Representing an investment bank in action to recover fee for advising a nonprofit health care system in a merger
  • Defending a bank and an investment manager in bankruptcy litigation seeking to claw back redemptions from investments in Madoff Ponzi scheme
  • Defending a bank against claims for compensation for allegedly brokering lending opportunity
  • Representing a bank in litigation involving potential liability to customers
  • Representing a company in an international arbitration arising from a securities financing deal
  • Defending an energy technology company in an SEC fraud action
  • Defending a broker and a clearing firm against customer claims, including in FINRA arbitrations
  • Representing a financial institution in an internal investigation related to mortgage-backed securities
  • Defending a hedge fund principal in a securities fraud action related to the fund’s collapse

Art Law

  • Representing an artist’s estate in a probate dispute
  • Defending an art supplies manufacturer against a copyright infringement claim
  • Defending a fashion retailer against a copyright infringement claim
  • Representing the family of deceased artist to recover value of artwork damaged in storage
  • Defending a photographer against Lanham Act, right of privacy, and fraud claims
  • Providing contractual advice to an arts foundation

Life Sciences

  • Representing pharmaceutical company in dispute with vendor providing services related to submission of New Drug Application
  • Representing biotech company in dispute over distribution and intellectual property rights for cosmetic and agricultural products
  • Defending pharmaceutical company in a securities fraud class action related to its promotional practices

Complex Contractual Disputes

  • Representing luxury retailer in promissory note dispute with former shareholder
  • Representing investment bank in dispute over calculation of transaction fee for advising on nonprofit hospital merger
  • Representing an engineering and construction company in contractual disputes related to indemnification and insurance
  • Representing a regional food producer and distributor in a contractual dispute with a technology vendor
  • Representing a construction company in disputes against the City of New York

Investigations, Regulatory Matters, & White Collar

  • Representing individual accountant charged with wire fraud
  • Representing accounting firm in regulatory matters, investigations, and subpoenas

Employment and Unfair Competition

  • Defending against broker dealer “raiding” and unfair competition claims
  • Representing a broker dealer in an arbitration involving breach of its operating agreement and employment agreements by former managers
  • Defending a company and its CEO in an employment discrimination and whistleblower case
  • Representing an engineering and archaeology firm in litigation arising from an employee maritime fatality
  • Co-author, “New York Courts Severely Curtail Litigation Activity in Response to COVID-19 Crisis,” Thompson Hine COVID-19 Update, March 2020
  • Co-author, “No Liability for Banks Under New York’s EIPA,” Thompson Hine Business Litigation Update, November 25, 2013
  • “Obligations When Third Parties Control Data,” The New York Law Journal, October 7, 2013
  • Co-author, “Business Litigation Update: Zubulake Discovery Standards Adopted By New York State Courts, Thompson Hine Business Litigation Update, February 28, 2013
  • Co-author, “The Arbitration Fairness Act: Performing Surgery with a Hatchet Instead of a Scalpel?” Albany Law Review, 2010 to 2011
  • Selected for inclusion in the New York Super Lawyers Rising Stars list, 2017

Professional Associations

  • New York City Bar Association, member; Art Law Committee, 2018-2021; Litigation Committee, 2014-2017
  • New York State Bar Association, member, Entertainment, Arts and Sports Law section
  • American Bar Association, member, 2014-2017
  • Women in Bio, Metro NY chapter, former Vice Chair for Events and Steering Committee member

Community Activities

  • Neighbors Together, Board of Directors, 2014-2020; Chair, 2018-2020
  • Fordham University Mentoring Program, mentor, 2013-2014
  • NYS Bar Association High School Mock Trial Attorney-Advisor, 2013-2014
  • NYCLU Young Professionals, 2008-2009


  • Columbia Law School, J.D., 2006,

    Kent and Stone Scholar; managing editor, Journal of Gender and Law

  • Fordham University, B.A., 1998,
    summa cum laude

    in cursu honorum

Bar Admissions

  • New York

Court Admissions

  • U.S. Court of Appeals for the Second Circuit
  • U.S. District Court for the Eastern District of New York
  • U.S. District Court for the Northern District of New York
  • U.S. District Court for the Southern District of New York