Prior to joining FTMS, William completed internships at corporate law firms, as well as with lawyers at the Court of Cassation and the Conseil d’État, and with statutory auditors.

William handles matters of banking and financial regulation, corporate law, and litigation before courts and arbitral tribunals. He also represents clients before independent administrative authorities such as the ACPR and the AMF.

He assists regulated professions, particularly in the banking, finance, asset management, and insurance sectors, in their day-to-day operations and development projects, and represents them in liability disputes.