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Portrait of Olivier Marquet

Olivier Marquet

Managing Partner

CMS Pasquier Ciulla & Marquet
Villa des Cigognes
17 rue Louis Aureglia
BP 450
98012 Monaco Cedex
Languages French, English

Olivier Marquet is the Managing Partner of CMS Monaco and one of its founding partners. He heads the Banking & Finance team. Olivier is an Avocat Défenseur at the Monaco Bar.

Repeatedly recognised as a leading practitioner by prestigious international rankings, Olivier brings over 15 years of experience, advising a wide range of Monegasque and foreign clients, mostly banks and financial institutions.

His expertise includes all types of regulatory issues, financial products, and transactions. He assists his clients in, amongst others, the creation or acquisition of a bank or financial institution, banking monopoly, bank secrecy, Franco-Monegasque banking agreements and also monetary agreements between the Principality of Monaco and the European Union. He also advises his clients on the SEPA agreement, measures to combat money laundering, terrorist financing and corruption, Monegasque financial law, Monegasque banking laws, banker's liability law, laws on credit and syndicated loans, credit guarantees, debt restructuring and the preparation of documents for clients to exercise banking and financial activities. His expertise also covers data protection law.

Olivier has a strong track record in contentious matters, and regularly represents banks and financial institutions, and their executives, in litigation before the Monegasque courts. He is also a highly experienced criminal lawyer.

Olivier’s expertise is widely acknowledged by his clients and independent rankings, such as Chambers & Partners, Legal 500 or Who’s Who Legal.

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He is a lawyer with an outstanding legal mind. It is a real pleasure working with Olivier, he is very reactive.

Chambers & Partners 2023 : General Business Law (Monaco)

Olivier Marquet frequently advises clients from the banking industry on a range of matters, including contentious mandates and internal reorganisations. He also assists corporate clients with cryptocurrency fund-raising, as well as representing defendants in white-collar crime litigation.

Chambers & Partners 2022 : General Business Law (Monaco)

Partner Olivier Marquet is highly sought after for banking and finance.

Legal 500 EMEA 2022 : Commercial, Corporate and M&A (Monaco)

Olivier Marquet is the paramount choice for commercial law. Olivier has been advising our firm for years, his strategic thinking and his legal abstraction capabilities helped us to find the most efficient structures and to solve many legal conflicts in and out of court.

Legal 500 EMEA 2021 : Commercial, Corporate and M&A (Monaco)

Olivier Marquet with CMS “has a very large panel of knowledge, which allows him to be very efficient on different matters”. One client effuses that “thanks to his strong experience and efficiency, we always have a good chance to win”.

Who's Who Legal 2021 : Banking: Finance (Monaco)

Olivier Marquet has a strong focus on financial law matters, advising clients on bank guarantees and real estate financing, as well as representing financial sector clients in litigation.

Chambers & Partners 2021 : General Business Law (Monaco)

Olivier Marquet represents private individuals and companies in disputes, as well as advising on real estate financing, market exits and corporate restructurings. Interviewees particularly highlight Marquet for his activity in the banking sector.

Chambers & Partners 2020 : Corporate/Commercial and Dispute Resolution (Monaco)

Olivier Marquet is a standout name for banking matters, renowned for his profound knowledge of the foundation of banks and financial institutions, as well as bank secrecy matters.

Who's Who Legal 2020 : Banking: Finance (Monaco)

Memberships & Roles

  • Participant at the Modernisation Committee of the Business Law in Monaco
  • Accredited Advisor of "Monaco Private Label"
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  • Thomson Reuters Regulatory Intelligence Guide: Securities & Banking in Monaco (2023)
  • Thomson Reuters Regulatory Intelligence Guide: Insurance in Monaco (2023)
  • The Legal 500 Banking & Finance Guide - Monaco chapter (2020 - 2023)
  • What are the consequences of the new rules on financial canvassing?, Monaco Economie (2022)
  • Changes to disciplinary administrative procedures in Monaco: rights of the defence gradually enhanced, Monaco for Finance (2022)
  • The Law Reviews: The Lending and Secured Finance Review - Monaco chapter (2021 - 2022)
  • Getting the Deal Through: Banking Regulation - Monaco chapter (2018 - 2022)
  • Getting the Deal Through: Private Banking & Wealth Management - Monaco chapter (2017 - 2022)
  • Reform of the regulation of financial activities: Monaco holds its place, Monaco for Finance (2021)
  • Getting the Deal Through: Securities Finance - Monaco chapter (2019 - 2021)
  • Monaco - Data Protection in the Financial Sector, DataGuidance by OneTrust (2019, 2021)
  • Informed client or uninitiated client: legal criteria for distinguishing between the two, Banking & Finance - Monaco (2019 - 2020)
  • M&A in Monaco, Global Practice Guide, Chambers and Partners (2019)
  • ICOs: an innovative unidentified object for European regulators?, Banking & Finance - Monaco (2018 - 2019)
  • Disputes when exchanging tax information based on a bilateral agreement, Banking & Finance - Monaco (2018 - 2019)
  • Article L.511-33 of the Monetary and Financial Code no longer holds any secrets for the Court of Revision, Banking & Finance - Monaco (2017 - 2018)
  • A Monaco, as elsewhere, fishing (for information) is forbidden, Banking & Finance - Monaco (2017 - 2018)
  • Electronic signature: is it time to let ink go?, Banking & Finance - Monaco (2016 - 2017) 
  • Compliance, the territorial principle and the legally binding nature of contracts, Banking & Finance - Monaco (2016 - 2017)
  • The status of company director, Actions Simplifiées
  • Co-editor of Editions Lexis Nexis-Jurisclasseur, Fascicules de droit monégasque
  • Justice : information, vigilance, supervision, guidance – what obligations must Monaco’s depositary banks meet?, Banking & Finance - Monaco (2015 - 2016) 
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  • Monaco Bar (2005)
  • Visiting Scholar, Duke University - School of Law (US)
  • Postgraduate Degree in Business Law, University of Nice
  • Postgraduate Degree in International Business Law, Aix-Marseille University
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CMS Monaco: Appointment of three new Counsels
We are pleased to announce that our firm has appointed three new counsels this year: Gautier Barat in the Banking & Finance team, Marion Cabanès and Alexia Delaunay in the Real Estate & Con­struc­tion...
Cross Border Financial Regulation
How to keep pace with the ever changing landscape of regulation?
Marketing in the financial sector in Monaco
The new Act 1.529 of 29 July 2022, resulting from Bill 1.049 and published on 12 August 2022, containing various economic and legal provisions, amends the provisions relating to solicited and un­so­li­cited...
Stephan Pastor joins Olivier Marquet to together head CMS Monaco
We are thrilled to announce that Stephan Pastor joins Olivier Marquet as Managing Partner.They will together head CMS Pasquier Ciulla Marquet Pastor Svara & Gazo, in order to accompany the sig­ni­fic­ant...
Amendement of the usury rate in Monaco
The Sovereign Order n° 2.271 of 6th July 2009 relating to the de­term­in­a­tion of the usury rate was amended by Sovereign Order n° 9.169 of 31st March 2022, published on 8th April 2022 in the Journal de...
Towards a monopoly for CCAF-ap­proved companies and institutions in the...
In view of the forthcoming accession of the Monegasque financial regulator, the Commission de Contrôle des Activités Financières (the "CCAF"), to the In­ter­na­tion­al Organisation of Securities Com­mis­sions...
Unfair terms and the banking law contract
A company had signed a securities account agreement with a bank, allocating a certain sum to its investment, and by two agreements of the same day, the bank granted the investor two credits under so-called...
The project of a legislation N.1035, amending the law N.1.338 of September 7, 2007 on financial activities has now been officially published. This project was indeed submitted on April 30th, 2021 on the...
The Sovereign Ordinance No. 8.600 of April 1st, 2021 has amended the annexes A and B of the monetary agreement concluded between the Principality of Monaco and the European Union on November 29th, 2011.Four­teen...
CMS Guide to Anti-Bribery and Corruption Laws
We are delighted to present the sixth edition of the CMS Guide to Anti-Bribery and Corruption Laws
Law and regulation of Covid-19 loan moratoriums in Monaco
1. De­scrip­tion of the legislation 1.1 Is there a moratorium on loans legislation implemented in your jur­is­dic­tion? No mandatory rules applicable to a moratorium of loans (strictly speaking) have been...
CRS - List of reportable, partner and non-re­cip­roc­al jur­is­dic­tions for...
As part of CRS reporting obligations, the list of reportable jur­is­dic­tions, partner jur­is­dic­tions and non-re­cip­roc­al jur­is­dic­tions has been updated by Ministerial Decree n°2020-869 of 11 December 2020...