We are delighted to announce the promotion of Tomás Navarro Blakemore (Geneva/Madrid), Andrea Trost (London), Thaís Obrist-Bdine (Zurich) and Grégoire Schafroth (London) to Counsel, effective from January 2026.

At MLL Legal, we are committed to continuously developing our firm and our talents, and the dedication, expertise and ambition demonstrated by Tomás, Andrea, Thaís and Grégoire are a perfect reflection of this commitment. They have each shown exceptional professionalism, widely recognized skill and extensive expertise, and we are proud to support their continued advancement.

Tomás Navarro Blakemore: Counsel 

Tomás Navarro Blakemore’s practice covers all areas of international dispute resolution, with a strong focus on international commercial arbitration. Since joining MLL Legal in 2015, he has acted as counsel, arbitrator and secretary to arbitral tribunals under the major arbitral institutional rules, as well as in annulment and enforcement proceedings. Admitted in both Switzerland and Spain, and with a foot in the Madrid office, Tomás also advises private clients on cross-border matters, such as succession, real estate and wealth planning.

“Tomás is an outstanding arbitration practitioner whose deep knowledge of international dispute resolution, strategic thinking and strong multicultural awareness consistently deliver exceptional results. His experience as counsel and arbitrator, coupled with his commitment to excellence, inspires confidence among clients and colleagues alike. Tomás’ promotion to Counsel reflects his dedication to advancing our firm and our international arbitration practice”, says Jean Marguerat, Co-Head Dispute Resolution

Andrea Trost: Counsel 

Andrea Trost is an expert in banking and finance transactions, as well as regulatory matters. She specializes in disruptive and new technologies and advises companies at all stages of their life cycles on the legal and technical aspects of their business models. She joined the London office as an associate in 2017. 

“We are delighted to congratulate Andrea on this well-deserved promotion! Andrea is an exceptional lawyer, highly respected by both our clients and our legal team. Her unique expertise in Fintech and DLT, along with her extensive Banking & Finance experience, makes her an invaluable asset to our London office. Her intelligence, dedication, and keen interest in our clients’ business are truly commendable. With Andrea’s promotion, we are confident her contributions will continue to drive our success and inspire those around her. We are fortunate to have her on our team and look forward to her continued growth and achievements”, says Dunja Koch, Co-Head of the Banking & Finance Practice, Head of the London Office

Thaís Obrist-Bdine: Counsel 

Thaís Obrist-Bdine specializes in advising high-net-worth individuals and families on Swiss and international tax issues. She is a key member of MLL Legal’s Latin America desk and a qualified Brazilian lawyer, advising Brazilian and Latin American clients on cross-border matters. Since joining MLL Legal in 2017, Thaís has built up a solid practice in advising on relocations, complex estate and succession planning, and the tax structuring of philanthropic initiatives. 

“Thaís stands out from the crowd of private client tax lawyers by confidently navigating the complex intersections of Swiss and foreign, private and tax law. Her profound expertise and remarkable comprehension enable her to quickly and comprehensively grasp her clients’ issues and inspire her clients with smart, tailored solutions. She combines her multilingual skills with a deep understanding of diverse cultural contexts, ensuring clear communication and effective solutions for clients across jurisdictions”, says Thomas Nabholz, Co-Head Tax 

Grégoire Schafroth: Counsel 

Grégoire Schafroth advises financial institutions and corporate entities with financing and other transactional matters. He also supports (U)HNWIs with the structuring and the governance of their private and business affairs, and their relationships with financial services providers. He joined MLL Legal in 2021, having previously completed an LL.M in International Financial Law at King’s College London.    

“Grégoire has established himself as a trusted advisor for our clients. His sharp analytical skills, combined with a pragmatic approach, enable him to deliver solutions that meet the highest standards of our clients. Grégoire’s ability to navigate complex situations with clarity and precision makes him an invaluable asset to our team. His promotion to Counsel is a well-deserved recognition of his dedication and expertise“, says Serge Calame, Co-Head Private Clients