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Who's Who Legal
Who's Who Legal

Global Leader

Banking - Finance 2021

Professional Biography

WWL Ranking: Recommended

WWL says

Olivier Marquet “has a very large body 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”.  


Olivier Marquet is a founding member of the firm in Monaco. He is avocat-défenseur at the Monaco Bar and heads the banking and finance practice group.

His expertise spans all types of regulatory issues, financial products and transactions, including, for instance, the creation or acquisition of banks or financial institutions, banking monopoly, bank secrecy, Franco-Monegasque banking agreements and monetary agreements between the Principality of Monaco and the European Union, the SEPA agreement, measures to combat money laundering, terrorist financing and corruption, Monégasque financial law, Monégasque 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 in Monaco.

Olivier is a strong litigator. He regularly represents banks and financial institutions, as well as their managers and executives, in regulatory, civil or criminal proceedings. 

He is recognised by leading legal directories as a top practitioner in banking and finance in Monaco and has authored and published numerous articles dealing with banking regulation, private banking and wealth management and financial instruments.

He was educated at the University of Nice (France) and the Institut de Droit des Affaires of the University of Aix-Marseille (France) and was a visiting scholar at the Duke University School of Law.

He is fluent in English and French.

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