Diego Leis is a Founding Partner of STUDIO LEGAL. His practice focuses on commercial, financial and corporate litigation, as well as white-collar criminal law. He advises and represents Swiss and international clients, including companies, executives, shareholders and private individuals, in protecting their economic and financial interests.
Experienced in complex litigation and matters requiring swift action, Diego Leis regularly represents clients in proceedings involving interim and protective measures, including injunctions, prohibitory orders, asset freezing orders and legal mortgages. He adopts a strategic approach to dispute resolution, taking into account the legal, commercial and personal considerations specific to each case.
He has particular experience in shareholder disputes, corporate governance conflicts and disputes arising from mergers, acquisitions and business disposals. He also provides preventive advice on corporate governance, contractual risk management and the protection of his clients’ private and business assets.
His practice is characterised by a multidisciplinary approach to disputes, particularly where civil, criminal and regulatory issues intersect. This enables him to assess the various dimensions of a dispute and develop strategies that address both procedural requirements and the underlying commercial interests at stake.
Diego Leis also handles matters involving cryptocurrencies and the art market, particularly those raising issues of ownership, fraud, liability and asset recovery. His familiarity with the key players, practices and mechanisms specific to these sectors allows him to navigate complex matters at the intersection of law, finance and private wealth.
Believing that the role of a lawyer extends beyond legal expertise alone, Diego Leis places particular emphasis on building direct, trusted relationships with his clients, providing candid advice and developing a thorough understanding of their objectives. His approach combines legal rigour, strategic judgement and commercial awareness.
Since 2024, Diego Leis has served on the Committee of the Young Bar Association of the Geneva Bar Association, where he holds the positions of Secretary and Treasurer.
Languages
- French
- German
- Spanish
- English
Education
- CAS Inhouse Counsel, University of Zurich (2017)
- Admitted to the Geneva Bar, ranked 2nd (2014)
- Certificate of advanced studies in legal professions (ECAV), University of Geneva (2012)
- Master of Business Law, University of Zurich (2012)
- Erasmus semester, Maastricht University (2012)
- Bachelor of Law (bilingual), University of Fribourg (2009)
Career
- STUDIO LEGAL, partner (2023)
- MANGEAT, counsel (2018-2023)
- id est avocats, lawyer (2014-2017)
- CMS Switzerland, trainee lawyer (2013-2014)
Affiliations
- Geneva Bar Association (OdA)
- Swiss Bar Association (FSA)
- Foundation for Art Law (FDA)
Publications
- Enseignements pratiques pour la rédaction de conventions d’actionnaires, Michel Jaccard and Diego Leis, Développements en droit commercial V, CEDIDAC 99, 2017.
