Attorneys & Professionals / ALEXANDRA I. RENGEL


Founding Partner, Litigator




Alexandra Rengel, LLM/JSD is one of the founding members of Mercado & Rengel. Attorney Rengel is a lawyer with over 20 years of experience handling cases in both State and Federal Courts. Her vast trial experience includes cases of great complexity, ranging from multi-defendant financial fraud cases to murder in the first degree. Additionally, she has filed numerous appellate briefs and argued before the Appeals Court in Florida, the Massachusetts Appeals Court, the Massachusetts Supreme Judicial Court, and the Eleventh Circuit Court of Appeals.

Since 2010, attorney Rengel has devoted the majority of her time to representing individuals and corporate entities with a desire to invest and establish a presence in the United States, as well as individuals with extraordinary abilities such as professional athletes, high level executives, and internationally known artists who wish to relocate to the United States. In that context, she has represented Olympic athletes, internationally known executives, professional soccer players, and Hollywood script writers, among others.


Attorney Rengel obtained her Bachelor´s Degree (B.A) from Mount Holyoke College in South Hadley, Massachusetts; and her Juris Doctorate (J.D.) from Boston University, in Boston, Massachusetts. She holds a Master Degree in Spanish Law from the Universidad de Alcalá de Henares (LL.M.) and a Master Degree of Law (LL.M.) from Saint Thomas University School of Law in Miami, Florida. Additionally, in 2013, she obtained a Doctorate of Juridical Science Degree (J.S.D.) from St. Thomas University School of Law in Miami, Florida.


Alexandra Rengel is a frequent lecturer on International Law, Alternative Dispute Resolution, Privacy, and Leadership. She is currently an associate professor at IE University in Madrid teaching in the Master Program in International Law and Economy. Previously, Dr. Rengel has taught at the Madrid Campus of Suffolk University, Schiller International University, and Comillas Pontifical University in Madrid, Spain. Most recently, in 2022, she was a faculty member of the Advanced Course in Civil and Entrepreneurial Mediation and Civil and Commercial Mediation, offered by the government of Aragon, Spain.

Occasionally, Dr. Rengel participates in talks as well as seminars on International Business Law, Transnational Dispute Resolution, and Leadership. In 2021, she was interviewed by Jan Rutherford and Jim Vaselopulos, for the Leadership Podcast, to discuss Latinx Leadership She has lectured at DePaul University in Chicago, the University of Toulouse, in France, and at the Ilustrious College of Attorneys of Zaragoza, in Zaragoza, Spain.


Attorney Rengel is a member of the Florida and Massachusetts Bars, and is admitted to practice before the United States District Courts of Massachusetts, the Southern and Middle District of Florida, Washington D.C., New Jersey, and the United States Court of Appeals for the Eleventh and First Circuits. She has also handled cases pro hac vice before the United States District Courts of New Hampshire, Puerto Rico, Rhode Island, Maine, Connecticut and New York. Outside of the United States, Ms. Rengel is admitted to practice law in Spain by the Ilustrious College of attorneys of Madrid, Spain.


  • BOOK: PRIVACY IN THE 21ST CENTURY, (Martinus Nijhoff Publishers, 2013);
  • Chapter author in Inside the Minds: Understanding International Criminal Law, “THE ORIGINS AND EVOLUTION OF INTERNATIONAL CRIMINAL LAW” (Thompson Reuters / Aspatore Books, 2014).

Dr. Rengel has also authored the following articles:

  • Privacy as an International Human Right and the Right to Obscurity in Cyberspace, GRONINGEN JOURNAL OF INTERNATIONAL LAW, vol. 2, ed. 1 (Nov. 2014).
  • Privacy-Invading Technologies and Recommendations for Designing a Better Future for Privacy, 8 INTERCULTURAL HUM. RTS. L. REV., 177 (2013);
  • Book Review, El Derecho en Español: Terminologia y Habilidades Juridicas Para Un Ejercicio Legal Exitoso, Katia Fach Gómez, University of Texas Press, May 2014, review available at: American Bar Association, International Law News, Fall 2014.