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Martin Valluis

Partner

Expertise

  • Litigation – Arbitration
  • International

Biography

He advises French and international companies and executives in managing and resolving their disputes before French civil, commercial and criminal courts. He also acts for private clients (HNWIs) in sensitive cross-border matters.

His practice covers a wide range of corporate and commercial disputes, with a strategic, cross-disciplinary approach drawing on civil law, commercial law, corporate law and white-collar crime.

He has particular expertise in corporate litigation, including post-acquisition and disposal disputes, and director liability. He has also developed a recognised practice in real estate and construction disputes.

He is experienced in commercial disputes involving unfair competition, abrupt termination of established commercial relationships, commercial leases and debt recovery.

His work combines the design of dispute- esolution strategies with a detailed command of civil, commercial and criminal procedural tools, which he deploys tactically and with precision.

Martin also acts in international commercial arbitration, including proceedings conducted under the ICC Rules.

He advises clients across a variety of sectors, including construction, real estate, agri-food, food services, shopping centres, serviced residences, fashion and luxury.

  • 2010 – CAPA, EFB
  • 2009 – LL.M. – Banking, Corporate and Finance Law, Fordham University School of Law à New York
  • 2006 – Master 2 – Business Law, Université Paris-Dauphine
  • 2005 – Master 1 – Business Law, Université Paris II Panthéon-Assas
  • Since 2020 – Partner, Miguérès Moulin (MMlaw)
  • 2010-2019 – Associate, Miguérès Moulin (MMlaw)
  • French
  • English
  • Advising on a shareholder dispute concerning the governance and allocation of share capital in companies operating a leading shopping centre in France.
  • Advising on a shareholder dispute linked to succession matters and the reorganisation of the shareholding structure of an emblematic company in the fashion sector.
  • Advising on a shareholder dispute concerning the allocation of share capital in a well-known press group, publisher of several specialist titles.
  • Advising on a shareholder dispute concerning the shareholding structure of the companies that designed and operate a shopping centre in France.
  • Advising and representing a holding company owning a major food-retail brand operating hypermarkets and supermarkets in the Paris region in a dispute relating to the acquisition of a competing group by a third party, primarily based on an estimate relating to the construction of a shopping centre.
  • Advising and representing a French group specialising in land development in a dispute brought by the opposing party seeking the enforced performance of a promise concerning a prime real estate asset in the Paris region.
  • Advising a leading Belgian group specialising in engineering and active in the space, defence, cybersecurity and critical-infrastructure sectors on a dispute brought by the opposing party seeking the enforced performance of a promise to sell a real estate complex.
  • Advising and representing a company active in the food-retail sector in a dispute relating to damage occurring during the construction of a shopping centre.
  • Advising and representing a group operating serviced residences for seniors in a dispute with an investor group concerning commercial lease matters.
  • Advising and representing a leading French industrial group in the bedding sector in a dispute relating to the termination of established commercial relations.
  • Advising and representing a British industrial group, a major player in corrugated-cardboard packaging, in a dispute arising from an accident at one of its factories.
  • Advising and representing a transport group in several disputes concerning restitution claims relating to rolling stock, technical components and undue operating expenses.
  • Advising and representing a leading property trader in a dispute arising from the non-performance of a promise to sell concerning a real estate asset located in Italy.
  • Advising and representing a shareholder in a dispute concerning the ownership of the share capital in companies holding a landmark real estate asset in the audiovisual sector.
  • Advising and representing an executive and shareholder of a leading group in the ecological transition sector in a dispute.
  • Advising a hotel group on a dispute concerning the pricing conditions of a master supply agreement for energy procurement.
  • Advising and representing a tech company in a dispute concerning the terms of engagement of an investment bank in connection with an M&A advisory mandate.
  • Advising and representing a leading French industrial group in the luxury textile sector in a dispute concerning the scope of services provided by a management-consulting firm in the context of a restructuring operation.
  • Advising and representing a Paris-based group in a dispute with a French company specialising in the distribution of branded products in the cosmetics sector.
  • Advising and representing a French premium bakery operator in a commercial dispute with two companies based in Panama and Colombia.

Rankings

2* distinction
Financial and securities litigation and regulatory proceedings before the French Financial Authority (AMF)
Option Droit & Affaires – 2025 Litigation ranking

2* distinction
Acquisition-related litigation (post-acquisition, pre-acquisition, shareholder disputes, warranty claims, price adjustments)
Option Droit & Affaires – 2025 Litigation ranking

1* distinction
White-collar crime and AMF sanctions
Option Droit & Affaires – 2025 Litigation ranking

Recommended
Real estate litigation
Décideurs / Leaders League – 2025 Real Estate ranking

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