EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Limited, each of which is a separate legal entity. Ernst & Young Limited is a Swiss company with registered seats in Switzerland providing services to clients in Switzerland.
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Geneva, Lancy, Switzerland
Quentin advises ultra‑high net worth families and family offices on international tax, legal and governance matters, bringing deep experience in multijurisdictional wealth structuring. In his current role, he guides families through complex succession planning, cross‑border asset‑holding design and the modernization of family office operations in line with evolving global regulations.
He has worked extensively with families across Europe, the Middle East and South Asia, helping them redesign governance frameworks, realign operating models and establish structures that support smooth multigenerational transitions. His work also includes creating in‑house tools that enhance legal and tax compliance, developing family governance advisory propositions and contributing to next‑generation training programs.
Quentin has also co‑developed proprietary governance methodologies that help families identify internal gaps and strengthen long‑term stewardship. He holds a law degree supported by advanced studies in international taxation.