The Team
Who We Are
Leonardo
Senna de Castro
Founder & Senior Advisor
Policy Expertise
Leonardo has led regulatory research and advisory work for the Netherlands Ministry of Foreign Affairs, United Nations University, and EIPA, focusing on digital governance (GDPR, EU AI Act), foreign aid, and ESG frameworks. He specializes in turning complex legal and socioeconomic insights into actionable policy strategies.
Immigration Affairs in US and EU
With a background as a Paralegal and Case Manager, Leonardo has supported clients in successfully navigating immigration and documentation processes across the U.S. and Europe. His hands-on approach to case preparation and document management contributed to a client success rate exceeding 90%.
+1 240-490-6184
Sara Moura, Esq.
Senior Advisor, and Counsel
Sara Moura is a highly experienced Portuguese lawyer and Senior Advisor at SDC Global Services, with over 14 years of practice advising international clients on complex legal matters in Portugal and across the EU. At SDC, Sara plays a pivotal role in guiding individuals, entrepreneurs, and companies through three core areas of expertise:
Visa & Residency Processing in Portugal and the EU
With in-depth knowledge of Portuguese immigration law and EU mobility frameworks, Sara specializes in navigating visa applications, residence permits, Golden Visa (ARI) processes, and nationality pathways. She provides tailored migration strategies for investors, professionals, and families seeking to establish a legal presence in Europe.
Business Establishment & Corporate Structuring
Sara advises on all legal aspects of setting up businesses in Portugal—from incorporation and regulatory compliance to contract drafting, shareholder agreements, and ongoing legal advisory. Her commercial acumen ensures clients have the legal foundation to scale sustainably and confidently in the EU market.
European Legal Due Diligence & Regulatory Risk
She leads legal due diligence processes for mergers, acquisitions, and investment ventures across multiple jurisdictions. With a postgraduate degree in Competition and Regulation Law, Sara helps clients anticipate legal risks, meet regulatory requirements, and operate in full compliance with EU standards.
Known for her precision, client-first mindset, and cross-cultural insight, Sara is a trusted advisor for individuals and organizations navigating legal and strategic decisions across borders.
Languages: Portuguese (native), English (fluent), Spanish (advanced), French (basic)
Based in: Lisbon, Portugal
+1 240-490-6184
Thainara Leite de Souza
Executive Assistant & Advisor
Executive Leadership & Support
Thainara Sousa is a skilled Executive Assistant with a background in legal studies, administrative operations, and sales management. Currently supporting the CEO of SDC Global Services, she provides high-level executive support in a remote, fast-paced environment, ensuring seamless communication, schedule coordination, and operational efficiency across time zones and teams.
Legal Expertise & Judicial Foundations
She holds a Bachelor's degree in Law from UNISAL – Centro Universitário Salesiano de São Paulo, which complements her professional experience with strong legal reasoning, organizational discipline, and attention to detail. Her legal training, combined with hands-on experience as a Legal Intern at the São Paulo State Court, allows her to bring a structured, compliance-aware mindset to executive operations.
Business Acumen & Client-Facing Experience
Previously, Thainara worked for nearly a decade in Brazil as a Sales Manager at Loja São João Batista, where she developed deep expertise in team leadership, client relations, and strategic sales growth.
Known for her collaborative spirit, adaptability, and commitment to excellence, Thainara thrives in multilingual, multicultural environments and is an asset to any mission-driven organization seeking strong executive support with a legal edge.
+1 240-490-6184