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 Sophie Marquet
Partner

Sophie Marquet

Languages
  • French
  • English
Social media

Sophie Marquet is one of the founding partners of CMS Monaco and head of the Real Estate & Construction team, as well as head of the Employment team with over 20 years of experience. Sophie is an Avocat Défenseur at the Monaco Bar.

On the real estate front, Sophie leads a strong practice focused on all matters having an underlying real estate asset, both in litigation and counselling contexts. She advises Monegasque and international clients, including investors (purchase or sale of real estate), landlords and tenants for both commercial and residential properties, as well as owners on their renovation and construction projects (also in France), including getting necessary condominium authorisations. She also assists property developers in audits aiming to analyse and litigate on the existence of easements, financial institutions in audits to finance property acquisitions, as well as other real estate players such as property managers and real estate agents in their specific areas of expertise. Sophie's team also assists real estate professionals in the fight against money laundering, terrorist financing and corruption.

Regarding her employment expertise, Sophie provides employers with litigation and strategic advice on all matters relating to handling labor relations, such as assessing termination options and settlements, drafting tailored employment contracts, setting up complex remuneration packages and incentives, addressing non-compete and non-solicit matters, securing confidentiality agreements, with a strong knowledge of the banking and financial sectors. She also assists employers with their collective relations with staff representatives and unions in particular in employment-related matters arising from mergers, acquisitions, sales and restructuring operations, such as employment transfers or mass (or individual) redundancies with(out) voluntary departure plans.

Sophie is repeatedly recognised as a leading practitioner by the prestigious international directories, such as Chambers & Partners and Legal 500.

Awards & Recognitions
01
  • Quote
    Sophie Marquet demonstrates in each case that she has a strong ability to analyse the issues and implement the best strategy in the interests of the case and the client.
    Legal 500 EMEA 2025 : Commercial, Corporate and M&A (Monaco)
  • Quote
    Sophie Marquet is regarded as a leading individual for employment law matters in Monaco.
    Chambers & Partners 2025 : General Business Law (Monaco)
  • Quote
    Sophie Marquet is an exceptional lawyer who provides good and practical advice for the client.
    Chambers & Partners 2025 : General Business Law (Monaco)
  • Quote
    Sophie Marquet is a reference in terms of labour law in Monaco.
    Chambers & Partners 2025 : General Business Law (Monaco)
  • Quote
    Sophie Marquet is a clear leader in her field.
    Chambers & Partners 2024 : General Business Law (Monaco)
  • Quote
    Sophie Marquet was extremely responsive and went beyond what was expected to get the case done.
    Chambers & Partners 2024 : General Business Law (Monaco)
  • Quote
    Sometimes the matters are quite urgent and Sophie Marquet is always available when needed. We appreciate her ability to support us no matter the subject.
    Chambers & Partners 2024 : General Business Law (Monaco)
  • Quote
    We value our excellent relationship with Sophie Marquet. It is an outstanding practice and maybe the best in class in Monaco with regards to HR law. The firm possesses an excellent track record for legal proceedings.
    Legal 500 EMEA 2024 : Commercial, Corporate and M&A (Monaco)
  • Quote
    We worked with Sophie Marquet and Sophia Bernardi, who were both very professional and prompt with all their communications.
    Legal 500 EMEA 2024 : Commercial, Corporate and M&A (Monaco)
  • Quote
    Sophie Marquet is regarded as a leading individual for employment law matters in Monaco. She assists with contract negotiations, restructurings and employment litigation. She also has experience in real estate matters, including property management mandates and lease agreements. "We really feel that we are in good hands with her. She has good expertise and pays attention to the details".
    Chambers & Partners 2023 : General Business Law (Monaco)
  • Quote
    Sophie Marquet is regarded as a leading individual for employment law matters in Monaco. She assists with contract negotiations, restructurings and employment litigation. Sophie Marquet also has experience in real estate matters, including property management mandates and lease agreements.
    Chambers & Partners 2022 : General Business Law (Monaco)
  • Quote
    Sophie Marquet has advised us in many Monaco real estate transactions, her diligence has helped us avoid important pitfalls and saved us from unjustified claims. Her standing with important industry players opens the door for direct talks and rapid solutions.
    Legal 500 EMEA 2021 : Commercial, Corporate and M&A (Monaco)
  • Quote
    Commentators describe Sophie Marquet as "efficient and responsive." She frequently represents employers in employment law disputes. Marquet also acts on contentious and non-contentious real estate matters.
    Chambers & Partners 2021 : General Business Law (Monaco)

Publications

Memberships & Roles

  • STEP (Society of Trust and Estate Practioners)
  • American Bar Association
  • IBA (International Bar Association)

Lectures list

Education

  • Monaco Bar (2010)
  • Trusts & Estates Practitioner, International Trusts Management Diploma, STEP (2013)
  • New York Bar (2005)
  • LLM (Master in Law), Duke University (2004)
  • DESS-DJCE International Business Law , University of Aix Marseille III (2003)
  • Master's Degree in International Business Law, La Sorbonne Paris