Carmen holds a graduate degree in Law and a qualification as Insurance Agent and Broker from CEU San Pablo University in Madrid. She began her professional career in the Law Department of ITAL, a family-owned rent-a-car business. She then lived in Rome for a time, where she worked for Ergon Studio, an event-organizing company and was later founding partner of Divercamps, an agency that specialized in study tours. Thereafter, she created Interschools Plus, a company offering quarterly or annual schooling programs for international students implemented in public high schools in Madrid. On returning to Madrid, Carmen was the sole manager of Lux Limousines, a luxury chauffeured car service company.