Founded in 1931, Fairhurst & Pisarenko is a boutique law firm with a long-standing tradition of providing sophisticated legal counsel tailored to the needs of businesses and entrepreneurs operating in Argentina and the region. Our practice is built on close, lasting relationships with clients and strategic alliances with trusted professionals across Latin America.
The firm was originally established by Dr. Juan Fairhurst and, in 1969, Dr. Héctor Ricardo Pisarenko Blanco joined as partner, shaping the firm’s current identity and expanding its reach.
With a deep-rooted academic foundation and decades of professional experience, we advise on the structuring, growth, and governance of corporate and investment ventures. We are also widely recognized for our expertise in managing complex disputes across a broad range of industries.
Our work integrates legal insight with a business-minded approach. We assist both local and international clients in navigating legal and regulatory frameworks, providing ongoing counsel that reflects the strategic and operational realities of their organizations.
Our clients span multiple sectors, including pharmaceuticals, agribusiness, renewable energy, consumer goods, biotechnology, real estate, medical technology, private equity, and international trade.
PRACTICE AREAS
- General Corporate and Commercial Law
- Civil Law (including Family and Estate Matters)
- Mergers & Acquisitions, Private Equity, and Corporate Transactions
- Tax Planning and Compliance
- Corporate Restructuring and Insolvency
- Labor and Employment Law
- Real Estate (Urban and Rural)
- Agribusiness
- Intellectual Property and Licensing (including Plant Genetics and Biotech)
- Renewable Energy
- Estate and Succession Planning
- Litigation and Dispute Resolution
- Accounting and Financial Administrative Support
FIDUCIARY SERVICES
Fairhurst & Pisarenko also provides fiduciary services in Argentina and abroad. Our team has extensive experience in the design, formation, and administration of trusts—both domestic and cross-border—tailored to meet a broad range of estate, investment, and governance objectives.
URUGUAY
Fairhurst & Pisarenko also maintains a presence in Montevideo, Uruguay, offering legal and tax advisory services to individuals and companies seeking regional structuring opportunities. The office provides guidance on legal residency, investment planning, and cross-border matters in a stable and investor-friendly jurisdiction.
Our Montevideo office is located at Cambará 1620.
OUR PROFESSIONALS
Dr. Hector Ricardo Pisarenko Blanco
Dr. Pisarenko earned his law degree from the University of Buenos Aires in 1969 and joined the firm that same year. He held teaching positions in Civil Law at the University of Buenos Aires, first as a teaching assistant under Professor Federico Videla Escalada and later as a tenured lecturer for over a decade. He also served in the judiciary as an Inspector Delegate at the Juvenile Criminal Court.
Dr. Nicolas Pisarenko
A graduate of the University of Buenos Aires (1996), Dr. Pisarenko is a partner at the firm and focuses primarily on corporate and transactional matters. He is also a board member and executive of several companies, including:
Hillock Capital Management S.A., an investment platform for agribusiness and forestry operations in Argentina and Uruguay
Proforsa S.A., a regional distributor of forestry products representing global brands
3Gal S.A., a renewable energy company active in Argentina
He is actively involved in nonprofit and business organizations and currently serves as: Vice President of the Disciplinary Committee, Argentine Polo Association
Secretary General, Argentine Chamber of Global Investors
Secretary, Sports Integration Foundation (Powerchair Football Argentina)
Dr. Juan F. Mendizabal Frers
Dr. Mendizabal holds a law degree from Torcuato Di Tella University (2002) and an LL.M. from the University of Illinois at Urbana-Champaign (2007). He joined Fairhurst & Pisarenko as a partner in 2016. Before that, he served as Legal Director of Intellectual Property and Licensing at Nidera’s Seeds Division, and represented the plant breeding industry on Argentina’s National Seed Commission from 2013 to 2016. His previous private practice experience includes roles at Pastoriza & Eviner and at Pérez Alati…
Dra. Romina A. Valenzisi
Dr. Valenzisi is a senior associate specializing in civil and labor law. She received her law degree from the University of Buenos Aires in 2008 and participated in the University’s legal clinic focused on children’s rights. From 2011 to 2013, she served as external counsel to Argentina’s Superintendency of Occupational Risks.
Paula Estevez
Paula Estevez is a Public Accountant with experience in tax advisory, accounting supervision, and financial reporting at FYP Consultores and SKF Uruguay S.A. She holds an MBA and a Public Accountant degree from the University of the Republic, as well as a postgraduate degree in international taxation from the University of Montevideo.
Maria Ruffolo
María Ruffolo is a Lawyer with experience as an independent attorney and in various areas of ANSES, specializing in corporate law and case management. She graduated in Business Law from the University of Buenos Aires
EXTENDED CAPABILITIES
We work in close coordination with a network of seasoned professionals and specialized consultants, allowing us to deliver integrated, multidisciplinary solutions that address the diverse needs of our clients
PRO BONO
We believe that the long-term success of any venture is closely tied to its contribution to society and the environment. Fairhurst & Pisarenko actively promotes this vision among its clients and reaffirms its own commitment through ongoing collaboration with foundations, NGOs, civil associations, and other nonprofit organizations.
