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Marval O'Farrell Mairal


8 ranked lawyersBand 1, Spotlight TableArgentinaGlobal 2021 View ranking table
chambers review
department information
Ranked Lawyers
chambers review
department information
Ranked Lawyers

Chambers Review

Chambers Research is conducted by 200 Research Analysts, across 200 jurisdictions and provides nearly 6,000 rankings tables. Annually we collect hundreds of thousands of responses from clients, the majority via in-depth interview. Learn more about our methodology.

What the team is known for

Powerhouse firm revered for providing advice on a myriad of corporate and M&A mandates. Focuses on complex, high-value local and cross-border transactions, offering longstanding experience assisting multinational companies with acquisitions, divestitures and joint ventures. Also handles reorganisation mandates and the incorporation of new entities in Argentina. Experience handling transactions involving hedge funds and private equity groups stands out. Routinely deals with clients and matters related to the Brazilian market, with a dedicated Brazil desk.

Notable practitioners

Diego Chighizola frequently handles cross-border deals in the agribusiness space. A client lauds: "He is very pragmatic and flexible when it comes to finding solutions."Another client notes that "Diego is technically very good, responsive, able to prioritise work and provide great analysis."

Diego Krischcautzky advises clients on a variety of M&A deals, including share exchange transactions and asset purchases. Krischcautzky boasts significant experience dealing with companies from several sectors, including the technology, agribusiness and mining spheres. A market onlooker praises him, commenting: "He is a very good professional," and goes on to attest: "I have very good references for him."

Founder partner and senior statesperson Héctor Mairal continues to be a prominent figure in the Argentine corporate arena, noted for his longstanding contributions. A source praises him as "very good" and "excellent."

Hernán Slemenson is praised by an interviewee who attests: "I am a fan of his."He advises private equity funds, as well as companies hailing from the real estate and biotechnology fields on transactional matters.

Department co-head Pablo Artagaveytia focuses his practice on M&A and restructuring matters. A client says: "His greatest virtues are that he is very clear, pragmatic and open-minded."A market source declares: "He is excellent and pro-deal."

According to a client, Pablo García Morillo is "a high-quality corporate lawyer: proactive, always available and highly skilled, with a lot of experience." An insider praises: "He is an excellent lawyer, very smart and a tough negotiator."García Morilloadvises companies on divestitures, reorganisations and contractual matters.

Co-head of department Pablo Viñals Blake continues to enjoy an important role in this area of practice and remains active assisting key local and multinational clients with M&A and corporate restructuring matters. A client endorses his role leading his team on a complex transaction, while a source describes him as "a good lawyer."He boasts expertise advising on private equity investments in the agribusiness sphere.

A client praises chairman Santiago Carregal : "He is excellent. When he talks in meetings everyone listens. He is kind of a legend." A market onlooker lauds that "Santiago is a very client-oriented lawyer who handles matters with great leadership and commitment to his clients."Carregal regularly assists with multi-jurisdictional transactions involving oil and gas and power clients.

Department Information

This content is provided by Marval O'Farrell Mairal.


Marval’s corporate department is renowned for providing high quality advice on the market’s biggest, most sophisticated and innovative transactions, including complex cross-border deals. Our corporate department has an unrivalled range of expertise; the team handles the complete range of corporate work from high-end M&A, JVs and corporate restructurings to day-to-day corporate matters for key corporate clients and is regularly involved in creating complex new corporate structures.

We have unmatched experience advising clients on regional transactions. In recent years the firm has been retained by multinational clients to coordinate transactions across many countries in Latin America.

Our corporate practice covers a wide range of matters including:

  • Inward investments by foreign investors, including private equity funds
  • Outward investments by Argentine investors
  • Mergers and acquisitions
  • Due diligence audits
  • Planning and structuring of joint ventures
  • Shareholder agreements
  • Governmental approvals and regulatory requirements
  • Acquisitions through bidding processes
  • Restructurings and spin-offs
  • General corporate representation for public and private corporations
  • Corporate dispute resolution 


Marval O'Farrell Mairal


Av. Leandro N. Alem 882

Buenos Aires

Capital Federal



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Ranked Lawyers

Chambers Research is conducted by 200 Research Analysts, across 200 jurisdictions and provides nearly 6,000 rankings tables. Annually we collect hundreds of thousands of responses from clients, the majority via in-depth interview. Learn more about our methodology.



Diego Chighizola
Band 4
Diego S Krischcautzky
Band 2
Héctor A Mairal
Senior Statespeople
Hernán Slemenson
Band 4
Pablo A Artagaveytia
Band 4
Pablo García Morillo
Band 3

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