Civil Litigation

Law graduate of the University of Granada, with an Erasmus year at the Freie Universität Berlin and a diploma in Anglo-American law. Master's in International Trade Management (MDCI) from ESIC/EIG, LLM in Legal Practice from the UOC and LLM in Advanced International and European Studies from the University of Granada. Specialist training in the European institutions with Van Bael & Bellis in Brussels, at King's College London and at the European University Institute in Florence, where he obtained the Diploma in the Law of the European Union by competitive examination.

Guillermo works actively in technology law and compliance, IP, investment, international contracting and trade, and litigation before the Spanish Supreme Court and the Audiencia Nacional, in matters valued above €300,000. He reads code, advises on ISO standards for quality, cybersecurity and data, audits AI architectures, and handles the overlap between the AI Act and the GDPR, MiCA and post-Schrems II international data transfers, including the EU-US Data Privacy Framework, without technical intermediaries. He has represented victims of crypto fraud with real on-chain tracing and knows the startup ecosystem from the inside.

Graduate in Law and Political Science from the University of Granada, specialising in comparative politics and European institutions. His postgraduate research at the Universidad Pablo de Olavide covered the regulation of smart contracts, intellectual property and data protection, with an active academic interest in banking regulation, securities markets, European financial markets law and the digitalisation of the legal system. Admitted to the Bar and in active practice since 2023, part of PASSAS since its founding.

David works actively in banking litigation, debt recovery claims and commercial law, with ongoing matters of considerable complexity involving directors' liability. He has worked on commercial disputes concerning branches, subsidiaries, franchises and international distribution agreements. He works with LegalTech platforms, electronic administration and the design of legal content processes, and handles the overlap between AI Act compliance, the GDPR and data protection in technically demanding environments. He has a multidisciplinary academic background in the fields of Law & Political Science.