Jaime de Castro Garcia

Graduate in Law, Universitat Autònoma de Barcelona (Hons, 1988). Graduate in Arts, Universitat Autònoma de Barcelona (1987). Master’s Degree in Local Administration, Universitat Autònoma de Barcelona – Institut d’Estudis Metropolitans (1990). Postgraduate Degree in Real Estate Law and Land Use and Planning, Universitat Pompeu Fabra (1991). Doctor of Law cum laude, Universitat Pompeu Fabra (2001). Member of the Federation of Catalan Municipalities Legal S...

Lawyer, member of the Madrid Bar Association since 1985. He directs the Department of Social economy and Non-Profit Organizations , which offers legal and tax advise to foundations, associations and other third sector entities that work in social assistance, education and international cooperation. He is also a specialist in Tax Law .

Licenciada en Derecho por la Universidad Pontificia de Comillas (ICADE) desde 1994 y, además, María se cualificó como Solicitor of England & Wales en 1998. Con más de 15 años de experiencia, es especialista en asesoramiento laboral integral a empresas tanto desde un punto de vista del derecho nacional como en asuntos laborales y de Seguridad Social con componente internacional. También tiene amplia experiencia en el ámbito de las Transaccio...

Carlos Muñoz Juanpere is a top attorney Carlos is a lawyer with extensive experience advising companies and individuals, both residents and non-residents, in the tax, commercial and civil fields. He graduated in Law from the University of Barcelona, completing his studies at ESADE, where he obtained a Master's degree in tax consultancy and management. He is a founding partner of the firm. He has extensive experience in legal and tax advice and management of private clients, family busi...

Mariola Ruíz is a lawyer recognized by Best Lawyers in the practice areas of Corporate Governance and Compliance Practice and Trade Law. Mariola practices law in Madrid, Spain Best Lawyers has recognized Mariola Ruíz since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Mariola Ruíz is held by other lawyers.

José Abad Revenga is a lawyer recognized by Best Lawyers in the practice areas of Arbitration and Mediation and Litigation. José practices law in Alicante, Spain Best Lawyers has recognized José Abad Revenga since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which José Abad Revenga is held by other lawyers.

Miguel Angel Palazon Esteban is a lawyer recognized by Best Lawyers in the practice area of Insolvency and Reorganization Law. Miguel Angel practices law in Zaragoza, Spain Best Lawyers has recognized Miguel Angel Palazon Esteban since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Miguel Angel Palazon Esteban is held by other lawyers.

Ignacio Guillén González is a lawyer recognized by Best Lawyers in the practice area of Litigation. Ignacio practices law in Madrid, Spain Best Lawyers has recognized Ignacio Guillén González since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Ignacio Guillén González is held by other lawyers.

Gonzalo García-Valdecasas Colell is a Founding Partner and attorney at Cysae in Madrid, where he advises companies and entrepreneurs on matters involving fintech , corporate law , and Intellectual Property Law . His practice focuses on the legal and regulatory issues that arise at the intersection of technology, finance, and business operations. He works with clients on topics including information technology law, data protection, blockchain and digital assets, cybersecurity, and finan...

Professional experience Mariano began his professional career in CUATRECASAS GONÇALVES PEREIRA (1997-2012) where was specialized in Legal & Tax Law to companies, Family business and HNWI. In 2012 joined KPMG (2012-2015), where co-leaded the Family Bussines and Private Client practice in Barcelona, Girona, Balearic Islands and Andorra offices. On January 2016 joins 4|5|3| Law Firm (former Marco Legal, Abogados & Economistas) as a partner, leading the Firm’s Tax Department....