Thomas Weibel

Fouad Sayegh is a partner in the tax team. His expertise covers most aspects of domestic and international taxation. He regularly advises high net worth families in their relocation, wealth reorganization, asset protection, estate planning and charitable projects, which often includes tax advice in relation to trusts, private foundations and investment vehicles. In the field of corporate tax, his practice includes advising on M&A transactions, corporate reorganizations, double tax treaty ...

Partner Sidonie Morvan has 20-years experience in real estate law with a wealth of expertise in construction law, having expedited developments in both the private (real estate transactions, brokerages, contracts for architects and builders, and leases) and public (planning and construction permits) sectors. Ms Morvan regularly advises developers, architects, real-estate agents, general contractors and property owners on the day-to-day management of their businesses, and can represent them be...

Sarah Busca Bonvin is a lawyer and tax expert specialised in both corporate and individual tax law. Together with M. Andrio Orler, she is responsible for CMS’ tax department in Geneva, which she joined in 2017. She worked for 15 years in the Geneva tax administration as Director of the tax affairs where she was responsible for tax rulings before being appointed Deputy Director-General in 2010. This experience has given her significant breadth and depth of knowledge and practice in many ...

Frédérique Bensahel is considered as a leading lawyer in the banking and financial sector in Switzerland. As Partner at FBT and head of its Banking and Finance group, Frédérique Bensahel advises Swiss and foreign financial institutions, in particular banks, asset managers, brokers, dealers as well as investment funds and fund managers on all regulatory and contractual issues. Frédérique Bensahel’s practice covers, in particular, fund and structu...

Thomas Meister is a partner in the Tax Team. He is working in the fields of domestic and international corporate tax, including tax optimization, corporate and real estate finance, structured finance, corporate reorganizations, transaction structuring and M&A. Since 2004 he is an adjunct professor for tax law at the University of St. Gall. Born in 1963, Thomas Meister was educated at the Universities of Lausanne and St. Gall (lic. iur. 1989, Dr. iur. 1995), New York University (LL.M. 1998...

Philippe Mantel is an attorney-at-law, member of the Geneva bar Association (ODAGE), the International Fiscal Association (IFA) and the association of Business Lawyers (AIBL). Philippe gained his experience working for about 10 years in the corporate tax department of the big fours in Geneva, Lausanne and Zurich. As from 2015, he was an associate and since 2019 a partner of Meyerlustenberger Lachenal (MLL) in Geneva, assisting private individuals and corporate clients in all tax matters. Phil...

Rodolphe Gautier heads the Dispute Resolution practice of Geneva. He has more than 15 years of experience working in litigation and arbitration. His practice focuses on commercial and banking disputes in Switzerland and international arbitration involving Swiss-connected parties, assets, substantive law or seats of arbitration. He frequently acts for multinationals, domestic companies and individuals before civil and criminal courts and arbitral tribunals. His practice also includes applicati...

Robert Desax is a partner in the tax team. He works in the fields of national and international taxation. He represents clients in controversial tax matters and assists private clients regarding the tax aspects of estate and wealth planning. He regularly advises on cross-border implications of international taxation, especially on the application of double tax treaties, on issues in connection with the refund of Swiss withholding taxes in international structures, on the Swiss tax treatment o...

Rafaella Demierre is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Rafaella, who practices law in Lausanne, Switzerland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rafaella is held by other top lawyers in the same geographic and legal practice area.

Andrea Meier is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Andrea, who practices law in Zürich, Switzerland, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrea is held by other top lawyers in the same geographic and legal practice area.