Mariana Lavanchy | White & Case LLP International Law Firm, Global Law Practice

Mariana Lavanchy

Associate, London

T +44 20 7532 1775



Mariana Lavanchy is an associate in the Dispute Resolution group of the Firm's London office, and practices both international arbitration and commercial litigation.  Mariana's experience covers disputes in various industry sectors, including corporate, insurance, construction and telecommunications.

Before joining the Dispute Resolution group, Mariana spent six months in the Corporate M&A group of the Firm's Singapore office as well as six months in the Project and Asset Finance group of the Firm's Paris office, where she gained experience in various corporate, project finance and asset finance transactions.

Mariana is also committed to pro bono work. She advises both at the Whitechapel Homeless Mission's legal advice clinic and at the Citizens Advice Bureau at the Royal Courts of Justice. She also regularly organises charitable events to support the London Legal Support Trust.


Bars and Courts

  • Solicitor, England and Wales


  • Legal Practice Course, The College of Law, London
  • LLM, European Law, The College of Europe, Bruges, Belgium
  • Master 1 Droits Français et Anglais, Université de Paris I Pantheon Sorbonne
  • LLB, English Law and French Law, King's College London


  • English
  • French
  • Portuguese
  • Spanish


Acting for the claimants in LCIA proceedings in London regarding a dispute concerning a hydroelectric plant in Brazil.

Advising the respondents in an ICC arbitration in relation to disputes arising out of a shareholders’ agreement.

Assisting a major investment bank in connection with an internal investigation into LIBOR setting.

Advising a leading Japanese producer of consumer electronic products in their defence of stand-alone actions for damages in the High Court for alleged breach of Article 101 TFEU.

Representing a high net-worth Eastern European individual in Commercial Court litigation and LCIA arbitration proceedings.