Edmundo Castillo > ECIJA Castillo & Fiallos > Managua, Nicaragua > Lawyer Profile

ECIJA Castillo & Fiallos

Work Department

Banking, Corporate/M&A, Dispute Resolution, IP, Notarial Law 


Managing Partner ECIJA Nicaragua


Edmundo is law partner in the areas of Banking & Finance, Corporate/M&A, Dispute Resolution: litigation and arbitration, Media, Intellectual & Industrial Property and Notarial at ECIJA Nicaragua.

Edmundo has focused his professional career on International Law, Banking, Commercial Law, Intellectual Property and Administrative Law. With more than 20 years of experience, he has provided services to the main banking and financial institutions of the country.

He has been a consultant in the preparation of draft bills for the Legislative Assembly of Nicaragua, such as the Financial Administration and Budgetary Regime Law, Public Sector Administrative Contracting Law, Law of International Legal Instruments and Foreign Service Law.

In addition, Edmundo is as an arbitrator before the Permanent Court of International Justice since 1997, before the Inter-American Commercial Arbitration Commission since 2008, and also before the Arbitration Mediation Center of the Chamber of Commerce and Services of Nicaragua. .

He was Vice Minister of Foreign Affairs, Secretary General, and Agent of the Republic of Nicaragua in trials before the Central American Court of Justice and Inter-American Court of Human Rights (1998-2002). In addition, Edmundo was a legal counsel in trials before the International Court of Justice (1998-2007).

He is professor at the Autonomous American University since 2011.



Edmundo speaks Spanish and English.


He obtained a Master in Common Law from Georgetown University, Fulbright Scholarship and Juris Doctor, suma cum laude from Universidad Autónoma de Centroamérica.

Lawyer Rankings

Central America > Corporate and finance

Spanish firm ECIJA expanded into several jurisdictions in Central America and the Caribbean in 2018 through a merger with regional firm Expertis Legal – and has since merged with local firms to launch offices in Panama and Guatemala. The firm is particularly strong for corporate work, with experience in the establishment of new companies, M&A and corporate restructurings, acting for a range of regional and international clients. Guillermo E Zúniga is the key name for corporate matters in Costa Rica. In Nicaragua, Edmundo Castillo and María Antonieta Fiallos handle corporate and finance matters, while in El Salvador, Alfredo Navas and Carlos Gil lead the growing banking and finance practice. Rosalinda Cruz Sequeira is the key contact in Honduras, and Armando Cordoba and Daniel Shamah handle corporate matters in Panama.

Nicaragua > Corporate and finance

Connected to an extensive global network, the ‘highly qualified‘ corporate and finance department at ECIJA Castillo & Fiallos provides a full service to regional and international corporations and financial institutions, which includes advising on project finance, debt restructuring, due diligence, M&A, corporate governance, commercial contracting and regulatory compliance. The team is led by banking law authority Edmundo Castillo and corporate law and commercial arbitration expert María Antonieta Fiallos, who is also a founding member of Grupo Pro Reformas Electorales, which seeks to strengthen Nicaragua’s electoral system. The group’s client roster contains household names, among them DHL Express and Pfizer, and spans the finance, courier services, banking, nutrition and pharmaceuticals sectors.