María del Mar Montes Díaz

Law degree UNAM, 1990. Attorney for the leading mobile telephone company in the country and its group since 2000, he has been actively participating in complex dispute resolution in the field, including telecommunications, M&A and commercial matters. He is the leading lawyer in the most important case (in quantity) involving the highest fine against a Telecom company (America Movil/Radiomovil Dipsa/ Telcel) imposed by the former competition agency in Mexico (One billion dollars) for alleg...

Armando Arenas joined OLIVARES in 2000 and became a partner in January 2017. He has experience working on a range of IP matters, including consulting and litigation on trademark, patent, unfair competition, trade dress protection, and misleading advertising cases before the Mexican Institute of Industrial Property (IMPI), Federal Court of Tax and Administrative Affairs (FCTA), Federal Circuit Courts (FCC) and the Supreme Court of Justice (SCJ) Regulatory Affairs and Public Acquisitions. Arman...

Pedro Javier Reséndez Bocanegra has broad experience in governmental affairs, assisting companies in the process of implementing and contracting infrastructure projects in Mexico and other countries of Latin America. His experience includes the drafting and negotiation of legal reforms, bidding guidelines and contracts required for project development and project financing, as well as compliance with regulatory controls. Pedro is experienced in dispute resolution procedures related to ...

Founding Partner. Born in Mexico City on September 26, 1975; He obtained his law degree (JD) at Universidad Anáhuac in 1998 and he has a postgraduate course on business law at the Escuela Libre de Derecho in 2002-2003. Mr. Basurto worked at the firm Bufete Carrillo Gamboa, S.C. for twelve years, being a partner in such firm for the last six years. He has focused his practice in corporate law, commercial Law, financial Law, foreign investments, mergers and acquisitions, banking, commerc...

From 2009 to 2012, Pedro was part of the Mexican Tax Administration Service (SAT). He worked in International Tax Audits, International Tax Legal Affairs, and Large Taxpayers Legal Affairs departments. Pedro participated in audits to foreign tax residents, the issuance of tax rulings, and exchange of information procedures with international authorities; he also attended Mutual Agreement Procedures (MAPs). From 2015 to 2016, Pedro was part of the SAT’s new Hydrocarbon Verification depar...

Samantha González is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Samantha, who practices law in Mexico City, Mexico, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Samantha is held by other top lawyers in the same geographic and legal practice area.

Carlos G. Guerrero Orozco is a litigation attorney and anti-corruption consultant based in Mexico City. He is a partner at the litigation firm López Melih y Estrada Abogados and co-founder of the non-profit DLM Mexico, which defends human rights through strategic litigation. He has advised and represented public and private companies, individuals, and international institutions including the Inter-American Development Bank, Transparency International, and the Cyrus Vance Center for Int...

Justo Fernández del Valle is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Mergers and Acquisitions Law and Real Estate Law. Justo, who practices law in Mexico City, Mexico, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Justo is held by other top lawyers in the same geographic and legal practice area.

Alejandro Ostos Fulda is a top attorney recognized by Best Lawyers in the practice area(s) of Amparo Law, Arbitration and Mediation, Civil Litigation and Commercial Litigation. Alejandro Ostos, who practices law in Mexico City, Mexico, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alejandro Ostos is held by other top lawyers in the same geographic and legal practice area.

Andrés Mascarua is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Andrés, who practices law in Mexico City, Mexico, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrés is held by other top lawyers in the same geographic and legal practice area.