Guillaume Bossy

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

Jean-François DEFUDES is partner and co-head of the “Corporate taxation” department. His professional career has enabled him to acquire solid expertise in the following areas : Corporate and group taxation (restructuring, corporation tax, tax consolidation, VAT, local taxes, etc.) Mergers and acquisitions and restructuring operations (M&A) Taxation of executives (remuneration, capital gains, dividends, IFI) Tax audit and litigation International taxation Tax demateriali...

Amaury DUMAS-MARZE is a partner within the « Distressed companies - Restructuring » department. Amaury assists distressed companies, administrators and judicial representatives, as well as rescuers. More specifically he works : with distressed companies : facing either preventive (ad hoc mandate, conciliation), or collective insolvency proceedings (safeguard, judicial recovery), with court-appointed receivers and trustees in the context of insolvency proceedings carried out under ...

Maud Perilli is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Reorganization Law and Labor and Employment Law. Maud, who practices law in Lyon, France, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Maud is held by other top lawyers in the same geographic and legal practice area.

Delphine Monnier is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Delphine, who practices law in Villeurbanne, France, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Delphine is held by other top lawyers in the same geographic and legal practice area.

Catherine Millet-Ursin is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits Law and Labor and Employment Law. Catherine, who practices law in Lyon, France, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Catherine is held by other top lawyers in the same geographic and legal practice area.

Pierre-Jean FERRY is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Mergers and Acquisitions Law and Private Equity Law. Pierre-Jean, who practices law in Lyon, France, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Pierre-Jean is held by other top lawyers in the same geographic and legal practice area.

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

Alexis CHABERT is co-head of the LYON office’s Business litigation Department. A specialist in legal proceedings applied to commercial litigation, he has developed solid experience in conflicts between partners, liability of company directors, unfair competition, compliant delivery, defective equipment, etc. He has also developed particular expertise in criminal business law to assist company directors who are victims of crime (fraud, breach of trust, forgery and use of forgeries, etc.)...

With a post-graduate diploma in business law and taxation from the University of Clermont-Ferrand, Pierre GUIGNAND has been a member of the Lyon bar since 2006.A lawyer with Ratheaux from 2006 to 2009, he joined Lamy & Associés in 2009 and became a partner in 2015.Pierre GUIGNAND also works in all areas of corporate law, particularly in domestic and international mergers and acquisitions, private equity and investment operations.