Dr. Léonard Lavanchy-Prack's practice focuses on contentious and non-contentious commercial matters, with a special emphasis on insurance contract law, general contract law and sanctions-related matters. He advises and represents Swiss and foreign clients in litigations before Swiss Courts, both domestic and international arbitrations as well as before domestic and foreign authorities. Léonard Lavanchy-Prack also assists clients with claim management, evidence gathering and corporate internal investigations.

• Representation of an insurance company through all instances of state court in a dispute with a customer regarding a claim for cover under a Company Insurance based on the alleged repeated occurrence of the insured event in the context of Covid-19
• Representation of an insurance company in state court in a dispute with customer regarding the alleged invalidity of the insurer's termination of the insurance contract
• Representation of an Asian technology corporation in arbitration in a dispute relating to media and sponsorship rights
• Representation of an insurance company through all instances of state court in a dispute with a customer regarding a claim for cover under a Civil Liability and Directors and Officers Liability Insurance

• Partner at Bär & Karrer (since 2025)
• University of Basel: Dr. iur. (2024)
• Foreign Associate at Cravath, Swaine & Moore LLP, New York (2022)
• Bär & Karrer College, University of St.Gallen: CAS in Law & Management (2020)
• Associate at Bär & Karrer (2018-2024)
• Admitted to the Bar Basel-Stadt (2018)
• Trainee at the Court of Appeal of Basel-Landschaft (2017)
• Trainee at Bär & Karrer (2015-2016)
• Trainee at a Swiss insurance company (2014)
• Universities of Basel and Geneva: Master of Law (2014)
• Participation in the 21. Willem C. Vis International Commercial Arbitration Moot (2013-2014)
• Student trainee at a Swiss law firm (2013)
• Research Assistant to Prof. Dr. Daniela Thurnherr, University of Basel (2013-2014)
• University of Basel: Bachelor of Law (2012)