Marshall Shaffer is a corporate partner in the New York office of Kirkland & Ellis LLP. His practice primarily focuses on mergers and acquisitions, corporate and securities law matters and corporate governance.

Marshall has advised both public and private companies and private equity firms in a wide range of industries in connection with mergers and acquisitions, divestitures, complex carve-outs, cross-border transactions, growth equity deals and securities offerings. Marshall has also advised with respect to proxy contests, shareholder activism, takeover defense strategies and other corporate governance matters.

Corporate clients that Marshall has represented include, among others, Activision Blizzard, Alleghany, Ann Taylor, CBS, Chesapeake Energy, Chubb, Covidien, Cousins Properties, Corning, Facebook, Jefferies, Lions Gate, McDonald’s, McGraw Hill, Medivation, Lord + Taylor, Polestar, Sunrise Senior Living, Taubman Centers, URS and Zoetis. Private equity clients that Marshall has represented include, among others, Apollo Global Management, Blackstone, EW Healthcare Partners, Gamut Capital Management, HGGC, L Catterton, Searchlight Capital Partners, Starwood Capital Group, Warburg Pincus and Welsh Carson.

Marshall received his B.A., cum laude, from Yale University. Marshall completed a J.D. from Stanford Law School, where he served as articles editor of the Stanford Law & Policy Review.


Thought Leadership

Speaking Engagements

Speaker, ACC New Jersey Webinar, “Dealmaking in Uncertain Times,” February 2024

Moderator, “What is Going on in the SPAC Market?” Fund Finance Association’s WFF Global panel, April 21, 2021

Press Mentions

Quoted, "How Due Diligence Went Virtual," Private Debt Investor, May 3, 2021


Admissions & Qualifications

  • New York


  • Stanford Law SchoolJ.D.
    Articles Editor, Stanford Law & Policy Review
  • Yale UniversityB.A., Political Science & Economicscum laude