María del Mar Heredia > Dentons Paz Horowitz > Quito, Ecuador > Lawyer Profile

Dentons Paz Horowitz
Calle del establo y calle E.
Site Center, Torre 1, oficina 301.
Cumbaya, Quito

Work Department

An attorney with 6 years of experience in corporate law, M&A, contracts, aeronautical law, energy, mining, and oil.


Senior Associate


  • Eversheds Sutherland (London), Associate (Ecuador),  2020.
  • Paz Horowitz Abogados, Senior Associate, expert in corporate law, M&A, contracts, energy, mining and oil, 2012 – present.
  • Tributarium, Assistant, 2011 – 2012.
  • Legal Clinics of the San Francisco de Quito University, Legal Advisor, 2011.


Spanish, English, French, Catalan


Colegio de Abogados de Pichincha (Pichincha Bar Association)


  • LLM, Columbia Law School, New York, 2017.
  • Lawyer, Universidad San Francisco de Quito, 2013.
  • Certificate in Finances for non-financial, Universidad San Francisco de Quito, 2019
  • Certificate in Business Law, University of California, Berkeley, 2015.
  • Certificate in Commercial and Competition Law, London School of Economics and Political Science, London – United Kingdom, 2014.

Lawyer Rankings

Ecuador > Corporate and M&A

Local practice Paz Horowitz Abogados significantly expanded its capacity for cross-border corporate work with its July 2021 merger with global firm Dentons, forming Dentons Paz Horowitz. The firm is particularly active in the M&A field, having recently advised international clients, as well as domestic players, on their acquisitions. Jorge Paz-Durini is known for his energy expertise, and leads the practice alongside Agustín Acosta Cárdenas and Rocio Córdova. Senior associate Maria del Mar Heredia provides support with M&A and corporate restructurings.

Ecuador > Energy and natural resources

With significantly expanded cross-border capabilities, the new Ecuadorian arm of global firm Dentons, Dentons Paz Horowitz, is highly active in the mining sector, offering regulatory, corporate and transactional advice to both domestic and international clients. The team also advises clients in the oil sector, particularly in dealings with government bodies, such as obtaining authorisations. The practice is led by Jorge Paz-Durini and Juan Carlos Pérez, both of whom are highly experienced in the mining sector, while senior associates Gabriel Santelices and Maria del Mar Heredia provide key support, with the former focusing on mining law and environmental compliance, while the latter handles corporate work.