Axioma is a premier boutique law firm which places priority on providing personalized services to customers, identifying their needs and proposing creative and efficient solutions to their particular business, within a pleasant atmosphere in which clients as well as members of the firm can achieve their professional and personal goals.

The firm's objective is to add value to its clients' projects and cases. Our purpose is to lead the operations we are involved in, with a view to bringing them to completion efficiently in the shortest possible time and minimizing contingencies.

During the past years, we have gained recognition from all the individuals and companies we have served, growing in a selective manner and consolidating our firm.


We intend to continue along the planned course, making steady progress in a sustainable and responsible manner, always making sure that our clients are highly satisfied with our work and that all members of the firm grow both professionally and personally.

The firm’s practice has a broad national complex litigation practice in aviation litigation, environmental litigation, business-crime, including a presence in various international tribunals. The firm is renowned for its ability to handle the most difficult legal situations with targeted and steadfast intensity.



Our partners have years of experience gained from practicing law and are ranked in the legal directories for the quality of their work and expertise. We strive to differentiate ourselves from other country firms by providing a partner-led service at realistic charge-out rates.

Our clients benefit from high quality advice and service as a result of our lawyers' extensive experience and high skill levels. We are known as a firm that provides personalized services to al of our clients, identifying their needs and proposing creative and efficient solutions to their particular business.


  • Gonzalo Castellón - Partner



    Decades of trial experience in criminal law practice makes  Mr. Castellon one of the most recognized and experience criminal lawyers in country. Ex Magister of Criminal Law Chamber and Cathedratic Professor in Criminal Law at University of Costa Rica leads the criminal law practice in Axioma.



    • Universitá di Pavia, Italia, Phd in Criminal Law, 1984.

    • University of Costa Rica, Law Degree (1975)



  • José Francisco Madrigal - Partner



    In charge of the firm litigation and white- collar defense and over 20 years of experience in Criminal Law makes Mr. Madrigal an expert in investigations and related enforcement actions.



    • Universidad Estatal a Distancia, Máster in Intellectual Property, 2009.

    • University of Costa Rica, Law Degree, 1994.



  • Eduardo Montero - Partner



    Focuses his practice on administrative litigation and amparo proceedings, with emphasis on public procurement litigation, cartels & leniency.



    • University of Costa Rica, Máster in Public Law, 2009.

    • University of Costa Rica, Law Degree, 1994.



  • José Pablo Sánchez - Partner



    In charge of the firm’s Environment & Energy is particularly known for his strengths in compliance and advocacy matters and advising clients in sophisticated cross-border transactions.



    • Washington College of Law, American University, Masters (LL.M) in International Legal Studies, , 2008.

    • University of Costa Rica, Law Degree, 1994.



  • Andre Vargas - Partner



    Combining business savvy with sophisticated litigation strategies, helps clients successfully resolve high-stakes commercial disputes.



    • University for International Cooperation, Masters in Tax Law, 1997.

    • University of Costa Rica, Masters in Commercial Law, 1991.

    • University of Costa Rica, Law Degree, 1986.




  • Aviation Law including aircraft trading, regulatory regimes finance and leasing, dispute resolution, mergers and acquisitions, international conventions and commercial/regulatory issues
  • Business Crime Covers  including criminal law enforcement, organization of courts, corporate criminal liability, statutes of limitations, initiation of investigations, procedures of gathering information
  • Cartels & Leniency including legislative framework, investigative powers, sanctions, leniency, whistle-blowing procedures, plea bargaining arrangements, appeal process and damages actions
  • Corporate Recovery & Insolvency covers   including issues that arise when a company is in financial difficulty, formal procedures, creditors, claims, restructuring and international procedures
  • Complex Commercial Litigation including business torts, contract and joint venture disputes, insolvency and restructuring related disputes
  • Environment & Climate Change Law   including environmental policy and its enforcement, environmental permits, waste, liabilities, contaminated land, powers of regulators and reporting obligations
  • Energy Law including regulatory enforcement, compliance and audit matters arising from trading in electricity and oil and gas laws and regulations – including development of oil and natural gas, import/export of natural gas, LNG, import/export of oil, transportation, transmission and distribution, foreign investment
  • Private Client   including pre-entry tax planning, connection factors, taxation issues on inward investment, succession planning, trusts and foundations, immigration issues and tax treaties

We share risk with our clients via contingency fee and alternative fee arrangements.

Reciprocity is at the core of all of our client engagements.  Serious and complex commercial litigation disputes involve various levels of risk.  Our ability and willingness to share risk demonstrate our desire to provide first-rate trial lawyer service in a manner that gives you confidence in the value Axioma provides and the results we deliver.



Phone: +506 2221-8557



Barrio González Lahman, Edificio Tenerife Tercer Piso, San José, Costa Rica)

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Derechos Reservados Axioma Legal, San José, Costa Rica 2016