About ExtraMixSR
A legal advisory in Carabanchel, Madrid, specialising in immigration and international protection, working with registered collaborating lawyers
Meet Your Advisor and Our Collaborators
ExtraMixSR (Extranjería y Trámites Mixtos) is a legal advisory founded in 2023 in Carabanchel, Madrid, by Sandra Roman Cardona, a legal advisor specialising in immigration and international protection. We are not a law firm: we advise you and handle your paperwork, and when a case needs a lawyer we work with collaborating registered lawyers.
We support foreigners, individuals and small businesses with residence, arraigo, citizenship, asylum and family reunification, as well as employment, civil, commercial, traffic and Social Security matters. We have guided international protection cases for Latin American clients and citizenship applications through to resolution.
Your first consultation is free, and fees are set per case, with the option to pay in instalments. We are available Monday to Saturday, 8am to 8pm, in person in Madrid or online across Spain.
Sandra Roman Cardona
Founder and legal advisor, expert in immigration and international protection
- Guiding your civil and labor procedures step by step
- Finding the best insurance and home for you
Juan J. Ventimilla
Collaborating lawyer (not ExtraMixSR staff): immigration and criminal law
- Solid and reliable criminal defense
- Legal solutions for your immigration status
Elisa Arroyo
Collaborator (not ExtraMixSR staff): mediator and talent manager
- Expert human management (Master UB)
- Law student