Xavier Favre-Bulle

Olivier Sigg is a partner in the Private Clients team as well as an experienced employment lawyer. He heads our Geneva office. He is known, both in Geneva and in London, where he worked for one year, as an expert in complex crossborder matters and is regularly instructed by foreign lawyers, in particular from common law jurisdictions. Olivier Sigg’s private client practice includes various estate-planning techniques. In particular, as a TEP expert, he specialises in trusts, foundations,...

Michel Abt is the co-head of the Tax Group and a member of the Banking & Finance Group. He advises both natural persons and legal entities such as banks, family offices and trusts, as well as investors and administrators whether in Switzerland or abroad, with a specific emphasis on asset holding structures. Since 2009, Michel Abt has been advising a large number of French clients in their regularization process and has assisted them with their tax optimisation. He thus addresses all tax m...

Alexandre Richa is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Corporate Law and Regulatory Practice. Alexandre, who practices law in Geneva, Switzerland, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alexandre is held by other top lawyers in the same geographic and legal practice area.

Patrick W. Vogel is a partner with Walder Wyss. He specializes in corporate law, as well as in banking and finance. He advises domestic and foreign companies on mergers and acquisitions and private equity transactions. With an education in both business and economics (HEC Lausanne) and law, he began his career by working for several years as an associate in the busy corporate finance departments of two pre-eminent US law firms in New York. Patrick Vogel has advised numerous clients on cross-b...

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

Etienne von Streng is a co-founder of Streng SA, a tax law firm based in Geneva, Switzerland. Etienne received his law degree from the University of Lausanne (Switzerland), was admitted to the Zurich bar, and holds a Certified Tax Expert diploma. Etienne advises on Swiss and international tax matters for companies including listed and private multinationals, high net worth individuals, entrepreneurs, and families. His expertise includes in general tax optimization, frequent negotiations with ...

Christian Lüscher mainly focuses on litigation, banking and commercial law, construction law, landlord-tenant disputes, white collar crime, and international judicial assistance in civil and criminal matters. He was admitted at the Geneva Bar in 1990, and attended law school in the United States graduating as a Master of Laws (LL.M.) from Tulane Law School in 1991. He founded his own firm in 1994, and joined ZPG as a partner in 2005, which merged with CMS in 2014. In 2001, he was elected...

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

Expert in corporate tax law, international tax planning, mergers and acquisitions, as well as strategy and transfer pricing. Also acts as counsel in domestic and international tax criminal proceedings. Seats on the Board of directors of several companies. He has extensive experience in banking tax law, as well as in taxation of investment structures (investment funds and corporate holdings) and commodity trading companies.

Rayan Houdrouge advises and represents Swiss and multinational companies as well as international organizations on all employment law matters. He has an extensive experience in executive transfers, compensation packages, work regulations, internal audits and collective procedures such as business transfers and collective dismissals. Rayan Houdrouge is also an accredited social security expert (Swiss federal certificate) and regularly assists clients in matters related to social security and p...