Building Your Future in Europe

Martins Castro is a consultancy composed of highly qualified multidisciplinary lawyers and consultants with international expertise and expertise, specialized in connecting Brazilians to life and business in Europe.

What we do

Consolidated from the professional and personal experience of its members, Martins Castro offers integral, reliable and personalized support to Brazilians who wish to expand their horizons in the lands of the “old world”.

Holder of a dynamic team, with extensive practical and academic experience, the company bets on the integration between technical knowledge, experience and cultural understanding of its members as the ideal combination to offer the most effective solutions to the demands presented by their customers.

Nationality Proceedings

We specialize in assignment/acquisition processes of Portuguese, Spanish and/or Italian nationality

Residence Visas and Permits

We provide all legal support to those who wish to reside legally in Portugal.


Revalidation of foreign diplomas

We assist foreign professionals in the revalidation of diploma and practice of the profession in Europe.

Tax Representation

We offer tax representation services for foreigners in Portugal.

International Transfer of Capital

We develop customized tax strategies for those who want to transfer their assets to Europe.

Legal Support for companies in Europe

We provide full legal support to Brazilian companies operating in Europe.

“Do your best, in the condition you have, while you have no better conditions to do even better.”
Mario Sérgio Cortella

our team

Renato Martins

Renato Martins

Lawyer with international practice, qualified by the Brazilian Bar Association and Bar Association in Portugal, Master in Administrative Law from the University of Lisbon, Postgraduate in International Relations at lusophone University, with experience in the public and business sector, focusing on the development of legal solutions in the development of business models and startups.

Karol Ximenes

Karol Ximenes

Journalist, Postgraduate and Master of Strategic Communication at the New University of Lisbon. Consultant, entrepreneur, with experience in the administrative and commercial area, focusing on customer service and relationship.

Diana Gondim

Diana Gondim

Lawyer, qualified by the Brazilian Bar Association and Bar Association in Portugal, graduated in Fundamental Rights from the University of Lisbon, a graduate degree in International Law from the University of Fortaleza, having worked in the public sector and Private. With academic experience in Spain, France and the United States, the latter acting as a research assistant at Loyola University College of Law, New Orleans.

Frederick Fayad

Frederick Fayad

Lawyer. Master's degree in Business Law from ISCTE - University Institute of Lisbon. Postgraduate in Corporate Governance from the University of Lisbon. Erasmus+ research fellow at Albert-Lüdwigs-Universität Freiburg (Germany). Experience in the legal structuring of commercial projects, corporate governance and compliance. Working in a global bank, he led the transfer of operations related to the management and preparation of financial contracts from London and Paris to Lisbon.

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