Ruben Diaz


Ruben Diaz is a partner and business lawyer with Foley & Lardner LLP. Ruben is the managing partner of the Miami office, where he is a member of the firm’s Transactions Practice Group.

Ruben has decades of experience advising companies on international transactions, with a particular emphasis on Latin American markets. His practice is focused on cross-border investments, mergers and acquisitions, joint ventures, corporate finance, and international arbitration and dispute resolution.

Ruben has worked across key industries, including banking and finance, agribusiness, food and beverage, energy, health care, real estate, and technology. He additionally has a significant background in international private wealth and tax planning.

Ruben previously served as Chief Legal Officer and General Counsel of a privately held Central American group with businesses in major sectors and as Head of the Latin America Legal Practice at Ernst & Young.

Representative Experience*

  • Lead legal advisor to the shareholders of BAC Florida Bank, controlled by Grupo Pellas, in the sale of the Coral Gables-based bank to Brazil’s Banco Bradesco.
  • Represented Ticofrut S.A., part of Grupo Pellas, in a tort action in federal court.
  • Lead counsel on numerous mergers and acquisitions including the largest dollar value M&A transaction to date in Central America.
  • Structured international joint ventures and restructured multinational groups.
  • Representation of both creditors and debtors in cross-border financings.
  • Representation of foreign companies regarding the establishment of U.S. entities and the acquisition of U.S. corporations, partnerships, and business assets.

*Matters handled prior to joining Foley.

Awards and Recognition

  • Recognized in The Best Lawyers in America® – Corporate Law (2024)
  • Lead attorney on transaction named “Financial Services Deal of the Year” at The Deal Awards (2021)
  • Recognized in Latin Lawyer 250 for his work in Latin America (2020)


  • Presidential Advisory Board Member, INCAE Business School (2017 – present)
  • Advisory Board Member, American Nicaraguan Foundation (2004 – present)
  • Advisory Board Member, APROQUEN (2004 – present)

Thought Leadership

  • Co-chaired panel at the International Bar Association (IBA) Biennial Latin American Regional Forum Conference, “Compliance: Beyond Lava Jato and the Panama Papers,” March 14-16, 2018
07 March 2024 Video

Ten Minute Interview: Inbound Investing

Brian Lucareli sits down with Ruben Diaz for a 10-minute interview to discuss inbound investing and top-of-mind issues when helping clients through the process of investing into the U.S. from Latin American countries.
01 March 2024 In the News

Foley’s New Office Managing Partners in Salt Lake City and Miami Featured in Press

Foley & Lardner LLP partner Monica Call’s appointment as managing partner of the firm’s Salt Lake City office and partner Ruben Diaz’ appointment as managing partner of the firm’s Miami office are highlighted in legal press.
26 February 2024 In the News

Ruben Diaz Featured in Law360 Following Managing Partner Appointment in Miami

Foley & Lardner LLP partner Ruben Diaz is featured in the Law360 article, “Foley & Lardner's New Miami Head Talks Helping As Leading.”
01 February 2024 Press Releases

Foley Appoints New Office Managing Partners in Salt Lake City and Miami

Foley & Lardner LLP is pleased to announce that Monica Call and Ruben Diaz have been named managing partners of Foley’s Salt Lake City and Miami offices, respectively, effective February 1, 2024.
17 August 2023 Honors and Awards

Foley Attorneys Recognized in 2024 Best Lawyers in America

Foley & Lardner LLP proudly announced today that 236 of the firm’s attorneys across 20 U.S. offices have received recognition in the 2024 edition of The Best Lawyers in America©.
05 July 2023 In the News

Foley Attorneys Forecast Latin American M&A Trends

Foley & Lardner LLP partners Ruben Diaz and Federico Goudie are quoted in the LatinFinance article, “Lawyers forecast fall in LatAm M&A,” offering their assessment of the Latin American merger and acquisition market through the end of 2023.