Three Crowns is pleased to announce that Washington, DC-based partners Luke Sobota and Liz Snodgrass are again featured in Chambers and Partners 2021 USA Rankings for International Arbitration. Additionally, the firm is again ranked as a leader in International Arbitration.

Chambers and Partners write:

Luke is highly respected for counselling in high-value clients across big-ticket commercial and investment treaty arbitrations. Clients note he’s “outstanding,” that “[h]is focus on clients’ needs is unparalleled,” and that he is “fantastic [and] a very good lawyer who is well versed in international arbitration issues.”

Liz is particularly well regarded for her expertise in the energy and mining sector. She handles both commercial and investment treaty disputes.

Three Crowns has “an experienced roster of high-calibre attorneys in Washington, DC, London, and Paris [that] offer expertise in major cross-border disputes.” One client noted, [t]he team as a whole is what you would expect from a big law firm, but with the dedication and client attention of a boutique firm.”

For more information, please click here.


Luke, a partner in the firm’s Washington, DC office, represents private and sovereign clients in some of their most significant commercial, investor-State, and inter-State arbitrations. His practice spans the energy, financial, construction, and technology sectors and includes successfully prosecuting one of the largest ICC cases in history.

Luke is a Lecturer on Law at Harvard Law School, and regularly writes and speaks about issues of international law and arbitration. He was invited by former International Court of Justice (ICJ) President Stephen Schwebel to co-author the second edition of International Arbitration: Three Salient Principles (Cambridge 2020), along with Three Crowns colleague Ryan Manton. In addition, Luke co-authored General Principles of Law and International Due Process (Oxford 2017).

Who’s Who Legal has recognised Luke as “‘a very sharp intellectual’ with broad expertise in commercial and investor-State arbitrations,” and he “is praised for his ‘fantastic analytical and writing abilities’.” The Legal 500 notes that he “is extremely smart and a great strategic thinker,” and is an “excellent draftsman.”


Liz, a partner in the Washington, DC office, has more than two decades of experience as an advocate and counsellor in international arbitration matters. Her practice is a mix of commercial and investment treaty arbitration. Liz has particular expertise in handling disputes involving States and State entities. Her clients span a wide variety of sectors, with a focus on upstream energy, power, mining, aerospace, and telecoms.

Liz’s publications on international law and arbitration issues include the seminal article, “Protecting Investors’ Legitimate Expectations,” in the ICSID Review. She also has authored numerous articles and book chapters on issues of arbitration practice and procedure, and in addition to faculty appointments at University College London (2007 – 2012) and the Washington College of Law at American University (current) she regularly guest lectures and speaks at client and industry events about arbitration issues.

Liz is recognised as a Leader in international arbitration by Who’s Who Legal, which describes her as “a brilliant mind and a wise counsel,” and is also recognised by Chambers and The Legal 500.

« Back