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Sarah Morreau

Senior Associate

Sarah specializes in international arbitration. 
She has acted for a range of corporate, banking and State clients in cross-border commercial and investment treaty arbitration under the ICC, LCIA, UNCITRAL and ICSID Rules. She also advises on public international law, commercial law and business and human rights.

Published Work

  • 'The Canadian Model BIT - A Step in the Right Direction for Canadian Investment in Africa?' with Rainbow Willard, Kluwer Arbitration Blog, 2015
  • 'Resolving inconsistent jurisdiction clauses and limits to Fiona Trust presumption', with Tom Whittaker, A&O Litigation Review, 2015
  • 'Mitigating risk of agent insolvency', A&O Litigation Review, 2016
  • 'Third party debt orders and letters of credit', A&O Litigation Review, 2017



Admitted as solicitor, England and Wales, 2016

Legal Practice Course, University of Law, (Distinction) 2014

B.A. University of Cambridge, Fitzwilliam College, Law, 2012, 1st class

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.