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Erwan Poisson

Partner

Email

erwan.poisson@aoshearman.com

Phone

+33140065387

Offices

Paris

V-CARD
Erwan advises international and domestic companies in complex commercial, civil, and criminal disputes, from the prelitigation stages of a matter, including alternative dispute resolution methods, to Court trials. He also covers representations before the courts of French-speaking African countries in commercial and criminal litigation matters, as well as before international courts (in particular, the ILO Administrative Tribunal).

 A general litigator, Erwan notably advises in the areas of banking and finance litigation, where his experience includes liability claims against banks, financial services and investment funds; corporate litigation, including disputes between majority and minority shareholders, disputes related to shareholding agreements as well as representations and warranties.

He has also developed specific expertise in conflicts of laws and jurisdictional issues (a subject he teaches at university), international judicial assistance, asset-tracing and recovery, and the enforcement of foreign judgments and arbitral awards on assets located in France.

Erwan also handles contractual and distribution disputes as well as product liability matters and insurance disputes, with a focus on the aviation sector. Erwan has worked in France and in the UK and he is qualified in both jurisdictions. 

Published Work

Trois questions à Denis Chemla, Erwan Poisson, Michael Young, Option Droit & Affaires, May 2013 The validity of one-way jurisdiction clauses put at risk by the French Supreme Court, PLC Dispute Resolution, November 2012 (co-written with Denis Chemla, Camille Fléchet) Mauvais arrangement vaut mieux que bon procès, La Lettre des Juristes d'Affaire, February  2012, co-written with Augustin Doulcet

Speaking Engagements

Teacher, International private law, Versailles university

Leadership Positions And Professional Affiliations

Member, IBA Member, DRI - defending business
Recognition
“Erwan is definitely a very good quality lawyer.”
Chambers Global, Litigation Elite, 2024
“Erwan Poisson has the capacity to present a case in a very concise and precise manner which was truly outstanding. The matter was extremely complex and he was able to explain it to all involved in the case, it showed his capacity to adapt to who he was speaking to. He is easy to work with and he provides very good advice on complex issues.”
Chambers Global/Europe, France Litigation, 2023

Awards

  • Band 4, Chambers Global, Litigation Elite, 2024
  • Band 4, Chambers Global/Europe, France, Litigation, 2023
  • Leading Individual, Corporate and commercial litigation, Legal 500 EMEA, Dispute resolution: Commercial litigation, France, 2023 
  • Leading Individual, Corporate and commercial litigation, Legal 500 EMEA, Dispute resolution: Commercial litigation, France, 2022
  • Band 5, Chambers Global/Europe, Litigation, France, 2022
  • Leading Individual, Corporate and commercial litigation, Legal 500 EMEA, Dispute resolution: Commercial litigation, France, 2020

Qualifications

Admissions

Solicitor of England and Wales, 2007 Admitted to the Bar, Paris, 2002

Academic

Master's degree, Private international law, University of Paris I Panthéon Sorbonne, 1999-2000 Master's degree, Dispute resolution, University of Paris II Panthéon-Assas, 1998-1999 Magister Juris (LL.M), Oxford University, 1997-1998 Degree in International and EU law, University of Paris II (Panthéon-Assas), 1996-1997
Disclaimer
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.