Lawyer
Madrid
mplaza@santiagomediano.com

Mariana Plaza

Mariana Plaza

Mariana is a lawyer specialising in tax law, with extensive experience in tax planning and the management of administrative and contentious proceedings. Her practice is distinguished by a strategic approach geared towards business needs.

With a law degree from Monteávila University in Caracas, Mariana has a solid academic background: a Master’s degree in International and Transnational Law from Chicago Kent College of Law, a Master’s degree in Law and Economics from Torcuato Di Tella University in Buenos Aires, and a Master’s degree in Access to the Legal Profession from the International University of La Rioja.

She joined our firm in 2025 as an associate in the tax department.

AREAS OF PRACTICE
  • Tax
LANGUAGES
  • English
  • Portuguese
  • Italian
  • Spanish
Education
  • Master’s Degree in Access to the Legal Profession from the International University of La Rioja
  • Master’s Degree in Law and Economics from Torcuato Di Tella University in Buenos Aires
  • Master’s Degree in International and Transnational Law from Chicago Kent College of Law
  • Bachelor’s Degree in Law from Monteávila University in Caracas
Experience
  • Lawyer at Santiago Mediano, Madrid | 2025 – present.
  • Lawyer in the tax department at Sterling Abogados, Madrid | 2023 – 2025
  • In-house lawyer at Inversiones Cohabi, Caracas. | 2020 – 2022
  • In-house lawyer at The F Room Agency, Caracas. | 2019 – 2020
  • Adjunct Professor of Private International Law at Torcuato Di Tella University, Buenos Aires | 2018
  • Pro bono lawyer at Tax Clinic Chicago Kent College of Law, Chicago. |2016
  • Legal intern at British American Tobacco, Caracas. | 2012 – 2014
Professional affiliations
  • Member of the Madrid Bar Association.