Tanisha A. James


I help clients attain their M&A and operational goals by successfully navigating them through antitrust and competition issues to achieve positive outcomes for their businesses and stakeholders.

+1 212 479 6005

Tanisha James' practice focuses on the representation and counseling of corporate clients in connection with their complex domestic and international mergers and acquisitions, strategic investments, joint ventures, and government and private antitrust investigations. Her clients regularly entrust her with guiding investors and companies through Hart-Scott-Rodino Act merger review analysis and process, negotiating with governmental and private parties, responding to second requests and agency investigations, advocating before the agencies and political bodies, and coordinating cross-jurisdictional antitrust defense strategies around the world. She also regularly provides counseling and training on a wide range of antitrust issues such as private equity and minority investments, compliance, distribution and licensing of intellectual property.

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  • Cell Design Labs Sells to Gilead 

  • Johnson Controls Joint Venture Named a Deal of the Year by China Business Law Journal 

  • Horizon Pharma to Acquire Hyperion Therapeutics for $1.1 Billion 

  • Horizon Pharma Acquires Hyperion Therapeutics for $1.1 Billion 

  • Horizon Pharma Buys River Vision for $145 Million and Unspecified Earn-Out 

  • View all






  • American University Washington College of Law
    JD, 2008

  • Wake Forest University
    BA, 2004

Admissions & Credentials

New York

District of Columbia


  • American Bar Association - Section of Antitrust Law

  • Metropolitan Black Bar Association

  • Caribbean Professional Network

Rankings & Accolades

    Crain's New York: Notable Women in Law

    Lawyers of Color: Inaugural "Hot List"

    National Law Journal: M&A/Antitrust Trailblazer

    New York Law Journal: Rising Star

    Super Lawyers: Rising Star in Antitrust

    Who's Who Legal: Future Leaders in Competition Law



+1 212 479 6005 office
+1 212 479 6275 fax

55 Hudson Yards
New York, NY 10001-2157

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