Castellán Abogados' corporate & M&A department is a cornerstone of the firm, and offers strategic legal solutions to both local and international clients across a variety of industries, including real estate, tech, automotive and agribusiness, serving prominent clients such as Kia Motors, GrandVision and SADA Group. Led by Santiago Castellán, the team excels in managing M&A transactions, corporate compliance and risk mitigation. Maria Lucia Acosta enhances the practice with her expertise in complex transactions, risk management and cross-border deals. Associate Mariana Fagioli has rapidly become a key player in corporate governance and transactional law, making significant contributions to high-profile M&A deals and the firm’s international expansion. Notably, the firm is also a member of the growing B-Conex Latam network, which currently includes partner firms in Chile and Argentina.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Billing & efficiency
Client satisfaction: NPS ®

Testimonials

Collated independently by Legal 500 research team.

  • ‘Castellán is qualified to work with cutting-edge mechanisms and technologies. They are up-to-date and very dynamic professionals. They respond quickly to customers and suggest the best solutions.'
  • ‘Santiago Castellán and María Lucia Acosta are distinguished lawyers and consultants. They work with a specific focus to solve the demands of each client. They are objective and pragmatic.'

Key clients

  • Sada Group
  • Aleph Group

Work highlights

Provided comprehensive corporate advisory to GrandVision (Luxottica Group) in Uruguay, leading governance restructuring, intercompany share transfers and compliance enhancement to support its regional integration under EssilorLuxottica.

Lawyers

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

Santiago Castellán

Other key lawyers

María Lucía Acosta; Mariana Fagioli