Department profile
Marval O'Farrell Mairal

Dispute Resolution

Latin America Guide 2026 : Argentina


Marval O'Farrell Mairal

Rankings

About

Provided by Marval O'Farrell Mairal

Marval consistently participates in the biggest, most complex and most sensitive disputes in Argentina. The firm is equally strong in all types of litigation, and both local and international arbitration.

We have acted as counsel in ad hoc and institutional arbitrations both commercial and investor-state under bilateral investment treaties; the firm has conducted arbitrations under the ICSID, ICC, UNCITRAL and other sets of rules.

Our litigation and arbitration practice covers a wide range of matters including:

  • Representation before federal and local courts (including the Supreme Court) on behalf of both Argentine and international clients in civil, commercial, tax, administrative, labor litigation and class actions
  • Administrative proceedings before federal, provincial and local agencies and institutions, including the Central Bank, the Consumer Protection Agency, the Antitrust Commission, the Federal Tax Court
  • Enforcement of foreign judgments and awards in Argentina
  • Participation in international arbitrations as arbitrators, counsel or expert witnesses
  • Advising on bankruptcy and creditors' rights, including advising to debtors
  • In-court and out-of-court debt restructuring proceedings
  • Recovery of debts

Chambers Review

Provided by Chambers

Dispute Resolution - Argentina

Band 1

Band 1


What the Team is Known For

Marval O'Farrell Mairal is an acclaimed full-service firm that commands a remarkable reputation in the market for its dispute resolution practice. Its deep bench of expert practitioners boasts an impressive track record handling complex national and international arbitration proceedings. The team possesses additional expertise in dealing with conflicts related to civil and commercial litigation. The firm is often sought out by international companies from the automotive, financial services and oil and gas industries to advise on sophisticated matters.

Work Highlights

Provided by Chambers

  • Marval O'Farrell Mairal acted as co-counsel to Abertis on its ICSID claim against the Argentine Republic, as a result of the sovereign's measures that affected its investments in Autopistas del Sol and Grupo Concesionario del Oeste.

Strengths

Provided by Chambers

  • Marval O'Farrell Mairal stands out for its strategic vision, efficient coordination across multiple work fronts, profound knowledge of the legal system and outstanding professional talent.

    Dispute Resolution respondentLatin America
  • With a large and diverse team of professionals, Marval O'Farrell Mairal can handle high volumes of work efficiently while ensuring consistent quality and meticulous attention to detail.

    Dispute Resolution respondentLatin America

Notable Practitioners

Provided by Chambers

  • Band 1Ricardo A Ostrower
    Band 1Ricardo A Ostrower

    Ricardo A Ostrower

    Market-leading partner and head of department Ricardo Ostrower is widely regarded as a top-tier practitioner in the disputes arena in Argentina for his prowess representing clients in litigation proceedings. He also has extensive experience of ICC arbitrations.

    • Ricardo Ostrower is among Argentina’s finest lawyers, recognised for his unparalleled expertise and stellar reputation in the field.

      Dispute Resolution respondentLatin America
    • Ricardo Ostrower is thorough and strategic, with the ability to anticipate the counterparty’s moves, understand the entire process and stay several steps ahead.

      Dispute Resolution respondentLatin America
  • Band 2Julio César Rivera Jr
    Band 2Julio César Rivera Jr

    Julio César Rivera Jr

    Distinguished partner Julio César Rivera Jr has longstanding experience representing clients in a range of disputes in Argentina. He plays a central role in the firm's commercial litigation as well as international arbitration proceedings.

    • Julio César Rivera Jr is an exceptionally skilled lawyer demonstrating mastery of procedural rules in commercial litigation and international arbitration, and he excels in delivering strategic advice.

      Dispute Resolution respondentLatin America
  • Band 2Santiago Soria
    Band 2Santiago Soria

    Santiago Soria

    Highly regarded partner Santiago Soria boasts ample expertise advising clients from the energy and natural resources sectors on their commercial litigation and arbitration proceedings.
    • Santiago Soria is an excellent lawyer who combines professionalism with practical guidance and prompt responses.

      Dispute Resolution respondentLatin America
  • Band 3Rodrigo F Garcia
    Band 3Rodrigo F Garcia

    Rodrigo F Garcia

    Established partner Rodrigo Garcia is well placed to represent local and international clients in civil and commercial litigation proceedings.
    • Rodrigo Garcia is a dedicated and versatile legal professional known for his creativity, competence and sophisticated counsel.

      Dispute Resolution respondentLatin America

Ranked Individuals at Marval O'Farrell Mairal (4)

Argentina

Members

Provided by Marval O'Farrell Mairal

Marval O'Farrell Mairal has rankings in the following guides

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