Sarah Vasani

Sarah is Co-Head of International Arbitration at the global law firm of CMS, a role covering the U.K., Central and Eastern Europe, the Middle East, Turkiye, Singapore, China, Brazil and Mexico. She is a seasoned international arbitration lawyer specialising in both international commercial arbitration and investor state disputes.
Sarah represents clients before all key arbitral institutions. She is dual-qualified in England & Wales and the U.S. (Texas and Washington D.C.), is a Solicitor-Advocate of the Higher Courts of England and Wales, and works in both English and Spanish.

In addition to advocating for her clients’ interests before international tribunals, Sarah advises clients on investment protection and (re)structuring, and on strategies, options, and tactics for minimising the prospects of full-blown disputes. She is an adroit counsellor on managing and sharing the risks of arbitration through third-party funding, ATE insurance, and conditional-fee and damages-based agreements, and enforcing arbitral awards. She has particular experience in the energy sector, including oil and gas, renewables (including wind and solar), and other large-scale projects. Sarah has represented many of the leading global energy and construction companies.

In addition to her work as counsel. Sarah regularly sits as party-nominated, sole, and presiding arbitrator. She is recognised by all the leading legal directories. Who’s Who Legal and Global Arbitration Review recognise Sarah as a “Global Thought Leader” who is “fantastic” and “very highly regarded in the field, especially for energy-related disputes.” Legal 500 remarks that she is “among the best of her generation.” Chambers reports that Sarah is “absolutely incredible with clients, committed to her cases and an absolute pleasure to work with”; she “is very creative in her approach and is very conscious of bringing value to her clients. Sarah is strategic, pragmatic and business-oriented.” Sarah has been named each year on the Legal 500’s annual Arbitration Powerlist – UK.