Michelle Diamond’s practice focuses on a range of matters at the intersection of law, business and government policy, including sensitive internal investigations, compliance, litigation and high-stakes crisis situations that garner the attention of regulators, enforcement authorities, Congress and private litigants. Her substantive expertise includes artificial intelligence development and oversight, anti-discrimination laws, US money-laundering laws, and the rapidly evolving legal and regulatory landscape of controlled substances (e.g., cannabis and psychedelics).

She has extensive experience conducting workplace culture reviews; investigating allegations of sexual harassment, discrimination and retaliation; litigating sensitive matters through evidentiary hearings and/or trial; and advising companies on how to create and implement effective compliance programs. She has worked with companies in a variety of sectors, including technology, financial services, nonprofit, healthcare and transportation.

Ms. Diamond also dedicates significant time to her pro bono practice, which focuses on reproductive rights. She has litigated on behalf of Planned Parenthood and the American Civil Liberties Union in federal and state courts across the country, serving as lead counsel at trial and on appeal

Past Experience

Prior to joining WilmerHale, Ms. Diamond served as a law clerk for the Honorable John M. Walker Jr. of the US Court of Appeals for the Second Circuit and the Honorable Thomas P. Griesa of the US District Court for the Southern District of New York.

Professional Activities

Ms. Diamond serves as co-chair of the firm's Hiring Committee in New York.


  • Named a New York Metro Rising Star by Super Lawyers for employer and labor law (2023).
  • Named a Rising Star in the Compliance category by Law360 (2023)
  • Named to Crain's New York Business' list of Notable Women in Law (2023)
  • Selected for inclusion in Best Lawyers: Ones to Watch for appellate law (2023)

Insights & News


  • Education

    • JD, Columbia Law School, 2012

      James Kent Scholar, Harlan Fiske Stone Scholar, Executive Notes Editor, Human Rights Law Review

    • BA, Political Science, Columbia College, 2008

      with honors

  • Admissions

    • New York

    • District of Columbia

  • Clerkships

    • The Hon. John M. Walker Jr., US Court of Appeals for the Second Circuit, 2014 - 2015

    • The Hon. Thomas P. Griesa, US District Court for the Southern District of New York, 2013 - 2014



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