Humberto received his law degree summa cum laude at Universidad Católica Andrés Bello (UCAB) (1985). He also obtained a Master of Laws (LLM) and Specialization and Diploma on International Taxation at Harvard Law School (1986), as well as a Doctor of Laws (PhD) at Universidad Central de Venezuela (UCV) (2003). Humberto is a Fellow of the National Academy of Political and Social Sciences, Seat No. 14 (2005). He is also Chair Professor and Head of the Finance Law Lecture at UCAB, and is a professor at the PhD courses at the UCV.

Humberto has represented clients in important tax and transfer pricing disputes, including Coca Cola Femsa, Brightstar Corporation and Sodexo. Humberto provides tax and legal advice to several multinational companies on corporate tax issues, such as Weatherford International, Zurich Insurance, FerroGlobe, Procter & Gamble, among others. Humberto has published more than 60 articles in Law Reviews in Venezuela and abroad, and more than 12 books on tax and accounting matters.