Ms Bertha Arguello > Arias > Managua, Nicaragua > Lawyer Profile


Work Department

  • Banking and Finance
  • Corporate and Commercial
  • Energy
  • Mining
  • Labour




Bertha was named Partner in 2004. She has coordinated and counsel  the opening and acquisition of several banks and financial institutions in Nicaragua. She works with national and international companies on matters related with investment projects and business operation, among many others. She differentiates her practice due to the time she takes to know the services and business model of each of her clients.


  • Spanish 
  • English


International Bar Association (IBA)


  • Law degree from the Universidad Autonoma de Centro America in San José, Costa Rica.
  • Authorized to practice law and as a Notary Public in Costa Rica and Nicaragua.
  • Master of Laws degree from Harvard University School of Law. 

Lawyer Rankings

Central America > Corporate and finance

Arias has maintained its strong regional presence following the split of leading Central American firm Arias & Muñoz in 2016, and retains offices in all six countries in the region. It is highly active in multi-jurisdictional transactions, including large-scale M&A and financings, acting for leading international clients from a wide range of sectors. On the corporate side, the firm also advises on group reorganisations and investments into the region by international companies. In addition, it is well versed in debt restructuring, project finance and financial regulation. In El Salvador, the standout names for corporate and finance work include Lilian Arias and Roberta Gallardo, who heads the M&A practice. In Guatemala, Jorge Luis Arenales is highly experienced in both corporate and finance matters, particularly in highly regulated sectors, while Evangelina Lardizabal, who has significant M&A and project finance expertise, is the key contact in Honduras. Vicente Lines leads the banking and finance practice in Costa Rica, where Melania Dittel is well regarded for corporate matters. Bertha Argüello and Ana Teresa Rizo, an expert in foreign investment matters, are the names to note in Nicaragua. In Panama, Yuri Moreno and Maria Cristina Fábrega are the key contacts for corporate and finance matters, respectively.

Nicaragua > Corporate and finance

(Leading individuals)

Bertha ArgüelloArias

The powerhouse team at Arias remains a market force, combining expertise in corporate, commercial, M&A, energy, banking and finance matters to meet the needs of its local and international clients. The group’s full service includes advice on due diligence, tax issues, project finance, joint ventures, concessions and credit agreements. The team is spearheaded by managing partner and foreign investment authority Ana Teresa Rizo and regulatory compliance expert Bertha Argüello, and backed by deal structuring specialist Gustavo-Adolfo VargasRodrigo Ibarra, who was promoted to partner in August 2021 and is experienced in M&A, and associate Maryeling Guevara. The group’s client roster covers the telecoms, energy, financial services and food sectors, and includes SBA Torres Nicaragua, IDB Invest and New Fortress Energy.