Katherine V. Mackey

Senior Associate

Katherine Mackey

Katherine V. Mackey focuses her practice on complex litigation matters.

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 another 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. 


  • “Reforming 'The Blob': Why California's Latest Approach to Amending CEQA Is a Bad Idea,“ 39 Colum. J. Envtl. L. 357 (2014).


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JD, Columbia Law School, 2014, Executive Editor, Columbia Journal of Environmental Law

MA, Human Rights, University College London, 2011

BA, Classics, cum laude, Harvard University, 2007

Bar Admissions


New York


The Hon. John M. Walker, Jr., US Court of Appeals for the Second Circuit, 2015 - 2016

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