About Us
International law firm for foreign investors and cross-border legal advice in Spain
Ahuir is a law firm with more than twenty years of experience in providing strategic legal advice to companies, international investors, and private clients.
The firm provides comprehensive legal advice to foreign investors in Spain as well as to international companies and private individuals who require legal certainty and strategic support for cross-border investments and international business activities in Spain.
With extensive experience in corporate law, real estate law, and international investment advisory, Ahuir supports clients in company formation in Spain, corporate transactions, investment structures, real estate acquisitions, and international investment projects.
The philosophy of Ahuir is based on three core principles: legal excellence, trust, and pragmatism, with the aim of providing clients with tailored and strategic legal advice for both short- and long-term investment projects.
Virginia Hannig - Founder
Lawyer & International Executive | Legal Services | Digital Transformation | Spanish Market Practice
Virginia Hannig (Membership number at the Madrid Bar Association: C103704) is an international lawyer and executive with over 15 years of senior leadership experience at the intersection of law and business strategy. She holds a law degree from the University of Valencia (Spain). Furthermore Ms. Hannig studied at Utrecht University (Netherlands).
Ms. Hannig further complements her legal background with an MBA in European-Asian Management (Berlin School of Economics & Law) and a Master’s degree in Renewable Energy from a legal-economic perspectives (Bar Association in Valencia). Her profile is strengthened by internationally recognized project management certifications, including Project Management Professional (PMP), Scrum Master, and Product Owner, as well as an Executive Strategy program at Harvard University.
Ms. Hannig has held senior executive and advisory roles with leading global corporations such as Capgemini, Vodafone, Dell Technologies, and E.ON, where she successfully led complex, technology-driven and cross-border initiatives, delivering sustainable and measurable business results.
She specializes in advising German-, English-, and Spanish-speaking private and professional clients on business ventures and real estate matters in Spain, combining legal excellence, strategic insight, and a deep understanding of digital transformation within an international context.

Virginia Hannig
Antonio Catena Molina

Antonio Catena Molina
Lawyer | Family and Inheritance Law
Antonio Catena Molina holds a Law degree from the University of Valencia and has been practicing as a lawyer since 2005. He is a member of the Valencia Bar Association (ICAV), registered under number 13,182. With more than two decades of professional experience, he has built a legal career grounded in legal rigor, close client relationships, and a constant commitment to finding effective solutions to complex legal matters. Throughout his career, he has specialized primarily in Family Law and Inheritance Law, advising clients both on legal planning and on the resolution of disputes in these areas.
Committed to continuous professional development, he is currently completing the Expert Program in Inheritance Law offered by the Valencia Bar Association (ICAV), with the aim of providing comprehensive and up-to-date legal advice while approaching each matter with strategic insight and strong practical knowledge of legal procedures.
He complements his professional experience with specialized training such as the Course on Land Readjustment under Valencian Urban Planning Legislation and professional certification in Advanced Mediation, enabling him to manage conflicts not only from a legal perspective but also through negotiation-oriented approaches aimed at achieving balanced and effective solutions for all parties involved.
Paula Catena Sancho
Lawyer | Labor, criminal, and insolvency law
Attorney admitted to the Alzira Bar Association (Member No. 2642). She holds a dual degree in Law and Business Administration from the University of Valencia and completed the Master’s Degree for Access to the Legal Profession, along with specialized training in Insolvency Law at the Valencia Bar Association.
Her practice focuses on labor, criminal, and insolvency law. With a strong legal foundation combined with a business-oriented perspective, she provides comprehensive, rigorous, and strategic legal advice to both individuals and companies.

Paula Catena Sancho
Carlos Catena Molina

Carlos Catena Molina
Lawyer | Civil, Family, Labor, and Criminal Law
Carlos Catena Molina is a lawyer registered with the Alzira Bar Association (Member No. 2,463) and holds a Law degree from UNED (2013). He has a strong specialized legal background, including a Master’s Degree in Labor Law and Social Security from the University of Valencia and a Master’s Degree in Civil and Criminal Legal Practice from the Madrid Lawyers Training Center.
His areas of specialization include Juvenile Jurisdiction, Civil Law, Family Law, Labor Law, Banking Law, and Criminal Law. He provides legal advice that is both client-focused and technically rigorous, always oriented toward the effective resolution of legal conflicts. His professional approach combines practical insight with strategic legal defense of his clients’ interests.
He is known for his strong ability to empathize with clients, understanding that behind every legal matter there is a personal situation that requires attention, sensitivity, and trust. His goal is to provide reassurance, confidence, and closeness, creating an environment of calm that allows him to deliver the best possible service and a solid, committed legal defense.
Lorena Montes Villena
Lawyer | Criminal, Labour and Civil Law
Lorena Montes Villena is a lawyer who graduated in Law from the University of Valencia (class of 2000–2005). She later completed the Legal Practice Master’s Degree at the Valencia Bar Association (Ilustre Colegio de Abogados de Valencia) between 2006 and 2008, joining the public legal aid system in that same year. She is registered with the Valencia Bar Association under membership number 13278.
She has more than twenty years of experience in the practice of law. Throughout her professional career, she has worked in different legal areas, providing comprehensive legal advice based on trust, proximity, and the rigorous defense of her clients’ interests.
Her work is characterized by commitment, empathy, and a strong service vocation. Trust and empathy are considered as important as legal knowledge; therefore, each matter is handled individually, guiding clients throughout the entire process and always seeking the best possible solution.

Lorena Montes Villena
How can we help?
Every mandate begins with a conversation. Tell us about your situation, and we will show you how we can help you.