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.