Katherine V. Mackey
Counsel
Katherine V. Mackey focuses her practice on complex litigation matters, including commercial litigation, internal investigations, and appeals. She has represented a variety of companies, including a major automotive manufacturer, a financial services company, and an electronics company.
Prior to joining the firm, Ms. Mackey served as a law clerk for the Honorable John M. Walker, Jr., of the US Court of Appeals for the Second Circuit and was an associate at a New York law firm. While in law school, Ms. Mackey was an intern at the US Attorney's Office for the District of Massachusetts in the Anti-Terrorism Unit.
Publications
- “Reforming 'The Blob': Why California's Latest Approach to Amending CEQA Is a Bad Idea,“ 39 Colum. J. Envtl. L. 357 (2014).
Recognition
- Selected for inclusion in Best Lawyers: Ones to Watch for white-collar criminal defense (2022–2025) and appellate practice (2023–2025).
Insights & News
Credentials
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Education
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JD, Columbia Law School, 2014
Executive Editor, Columbia Journal of Environmental Law
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MA, University College London, 2011
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BA, Harvard University, 2007
cum laude
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Admissions
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Massachusetts
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New York
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US Court of Appeals for the Ninth Circuit
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Clerkships
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The Hon. John M. Walker Jr., US Court of Appeals for the Second Circuit, 2015 - 2016
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Credentials
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Education
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JD, Columbia Law School, 2014
Executive Editor, Columbia Journal of Environmental Law
-
MA, University College London, 2011
-
BA, Harvard University, 2007
cum laude
-
-
Admissions
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Massachusetts
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New York
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US Court of Appeals for the Ninth Circuit
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Clerkships
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The Hon. John M. Walker Jr., US Court of Appeals for the Second Circuit, 2015 - 2016
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