Guillermo has a law degree from the University of Valencia and the University of Warmia & Mazury in Olsztyn. He has an Official Master's Degree in Taxation and Tax Advice from the Center for Financial Studies (CEF) and the Universidad a Distancia de Madrid (UDIMA), and an Executive MBA from the Escuela de Organización Industrial (EOI).

He joined the Firm in 2016, providing tax advice services to medium and large companies, as well as to national and international family businesses and individuals.

As a tax specialist, he also has experience in inspection procedures and appeals to the Tax Administration and Courts.

Guillermo is a member of the Illustrious Bar Association of Valencia.