Arthur Mendegris

Arthur Mendegris is a Senior Associate in Osborne Clarke’s Investment Funds team, based in Luxembourg. He advises clients on the formation, structuring and ongoing management of regulated and unregulated investment funds, with a particular focus on real estate, venture capital, private equity and private debt strategies. Arthur also has experience advising on Luxembourg tax considerations relevant to fund structuring.

Before joining Osborne Clarke in 2026, Arthur gained experience in Luxembourg in the international tax department of a Big Four firm and in the investment funds team of a leading offshore law firm.

Arthur holds a master’s degree in international taxation from SKEMA Business School. He is a Luxembourg-qualified lawyer and was admitted to the Luxembourg Bar in December 2023.

Arthur speaks French, English and Spanish.

Key focus areas

• Advising on the formation and structuring of regulated and unregulated Luxembourg investment fund structures across real estate, venture capital, private equity and private debt strategies
• Supporting investment funds throughout their lifecycle, including on regulatory and governance matters
• Advising fund managers, sponsors and investment funds on Luxembourg legal and regulatory matters
• Advising on Luxembourg tax considerations relevant to investment fund structuring
• Conducting Luxembourg legal, tax and regulatory due diligence, and
• Providing transactional support to alternative investment funds and their managers, including fund closings, subscriptions and investor onboarding.

Who I advise

• Luxembourg and international fund managers and sponsors establishing Luxembourg regulated and unregulated funds
• Asset managers and investment firms seeking Luxembourg legal and regulatory advice
• Institutional investors and financial institutions active in Luxembourg investment structures, and
• Professionals of the financial sectors requiring regulatory and governance advice.

Sector focus

• Financial Services – acting for financial institutions, asset managers, investment firms and institutional investors involved at all stages of fund formation and operation, including cross-border. 

How I help clients

Arthur advises on Luxembourg investment fund matters with a clear, pragmatic and responsive approach. He helps clients identify legal, regulatory and operational issues early and assess practical legal solutions that support their commercial objectives and investment strategies.

He supports clients by:

• helping them navigate key considerations during the fund structuring phase
• advising on regulated and unregulated Luxembourg fund structures and their implementation
• providing ongoing support on fund governance, regulatory and lifecycle matters, and
• working closely with clients and advisers on cross-border matters to ensure coordinated and efficient advice.