International disputes specialist Three Crowns LLP continues to receive mandates from significant Spanish and Latin American clients, with both sovereigns and multinational corporations calling upon the firm to represent them in investor arbitrations. Due to a strong presence among Spanish-speaking clients, the firm opened a new Madrid office in autumn 2023, headed by Carmen Martinez Lopez, whose expertise spans a variety of industries, including hydrocarbons, electricity, construction, and pharmaceuticals. The new office has resulted in a growing demand from Latin America and has allowed the team to be more responsive to its clients’ needs due to stronger economic and cultural ties. 2024 saw the practice continue to be involved in significant investment treaty arbitrations, such as its representation of the Republic of Chile in an ICSID claim relating to the construction of the Cardones-Polpaico Electricity Transmission line, co-led by Agustin G. Sanz. Beyond investment treaty work, the firm boasts an impressive repertoire of commercial cases in Latin America in significant industries such as aviation and oil and gas. Gaëtan Verhoosel KC, who splits his time between London and Madrid, has been active in representing Sacyr in a treaty claim against the Republic of Panama. Laura França Pereira is a promising, bilingual associate who is qualified to practise in Brazil, New York and Washington DC.
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Testimonials
Collated independently by Legal 500 research team.
- 'They're a true team. Their detailed knowledge of all the topics, and especially their timely approach to each case, is always an added value.'
‘I have had the opportunity to work with Three Crowns, and it is an outstanding international law firm. The team at Three Crowns is composed of highly skilled and well-prepared lawyers who consistently demonstrate exceptional technical expertise. The firm's commitment to providing practical and strategic legal solutions sets it apart in the field, making it a trusted partner for complex legal matters.’
‘I have worked with several outstanding individuals at Three Crowns, and each of them brings a unique set of qualities.
'Their personalised approach to providing effective solutions to client needs sets them apart from other law firms.'
'Extensive multijurisdictional knowledge and great human qualities.'
- 'I work mainly with Agustín García Sanz, a young lawyer who surprised me with his experience and knowledge of various areas of law. He is intensely and carefully dedicated to preparing cases and discusses his arguments in order to understand the correct way to take them to trial.'
Key clients
- Sacyr
- ConocoPhillips
- Republic of Chile
- Rusoro Mining
- Serafin Garcia Armas and Karina Garcia Gruber
- ExxonMobil
- Chevron
- Petroquímica Comodoro Rivadavia
- Boeing
- PETRONAS
Work highlights
Representing Chevron in its investment treaty arbitration against Ecuador before an arbitral tribunal under the auspices of the Permanent Court of Arbitration concerning a $9.5bn judgment against Chevron issued by Ecuadorian courts.
Representing The Republic of Chile in an ICSID claim filed by Interconexión Eléctrica S.A. E.S.P. (ISA) relating to the construction of the Cardones-Polpaico Electricity Transmission Line in Chile, which is the largest electricity transmission project in the history of the country.
Representing Sacyr in a treaty claim against the Republic of Panama under the Spain-Panama BIT concerning the expansion of the Panama Canal.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Agustin Sanz
Practice head
Gaëtan Verhoosel KC; Carmen Martinez Lopez; Agustin G. Sanz
Other key lawyers
Laura França Pereira