Marval O’Farrell Mairal is a go-to firm for support on complex, sensitive disputes and is frequently sought out by local and international clients involved in high-stakes litigation and arbitration. The team litigates before all levels of the courts in Argentina and is also well-versed in ad hoc and institutional arbitrations in commercial, investor-state and bilateral treaty matters. Constitutional and administrative matters are also covered, as is bankruptcy litigation. A team of experienced partners is led by the exceptional Ricardo Ostrower who is frequently involved in complex, politically sensitive litigation.  In addition, the practice draws on the specialist expertise of a deep bench of senior talent that includes Julio César Rivera (h) (commercial litigation, international and domestic commercial arbitration, insolvency and constitutional law), Santiago Soria (energy and natural resources disputes), Rodrigo García (family law and inheritance disputes), Elias Bestani (insurance, reinsurance, maritime and aviation disputes), and Facundo Viel Temperley (consumer and product liability disputes). The team also includes a cohort of younger partners, including the arbitration and litigation-focused Fernando Alemany and Martín Vainstein, another key name for energy sector litigation and arbitration who rejoined the firm from Cleary Gottlieb Steen & Hamilton in New York. Honorary partner Julio César Rivera, a former associate judge of the Argentine Supreme Court, provides additional support and vast litigation and arbitration experience spanning more than four decades. Martín Campbell, who has retired as partner, also provides senior support when required in an of counsel role.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Marval's reputation in Argentina is unmatched and they are extremely skilled lawyers.’

  • ‘Ricardo Ostrower is an excellent lawyer and a leader in his field. He is extremely knowledgeable and is adept at working with large, sophisticated clients. He is practical and is quick to receive direction from clients and implement in an effective manner.’

  • ��Facundo Viel Temperley, Elías Bestani and Agustina Ranieri provide excellent analysis and advice.’

  • ‘Marval's dedicated team understands customer needs. The lawyers have vast experience and excellent technical qualifications.’

Work highlights

  • Advising Credit Suisse on its potential liability for negligence in relation to the Madoff fraud.
  • Representing Avions de Transport Regional in arbitration proceedings in connection with the repossession of two aircraft sold to Avian Lineas Aéreas.
  • Representing INC in litigation in the context of the debt restructuring proceedings of the real estate developer Ribera Desarrollos.

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Practice head

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Ricardo Ostrower