Ingrid Iselin

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...

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...

Jamar E. Brown joins the Dispute Resolution and Private Clients groups in the Geneva office. In the dispute resolution field, Jamar represents international organisations in employment disputes before specialised administrative tribunals, including the Administrative Tribunal of the International Labour Organization. He is also a trusted advisor on internal investigations, disciplinary matters, and appeals before internal review bodies. In his private client work, Jamar specialises in regulat...

“My passion for the law and for my clients’ cases is what give me the focus I need to fiercely and fearlessly advocate for them.” Since 1995, Marc has gathered a comprehensive expertise in commercial and financial litigation, both civil and criminal, and is recognized as one of Switzerland’s leading specialists in financial criminal law, money laundering, fraud, corruption and criminal organizations. His extensive experience includes international legal assistance in c...

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 ...

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.

Vaïk Müller is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Corporate Law. Vaïk, who practices law in Geneva, Switzerland, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Vaïk is held by other top lawyers in the same geographic and legal practice area.

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,...

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 ...