Christelle Montero is an Associate Lawyer at OPTIO Next Law.

She has a Law Degree from the Autonomous University of Barcelona and has specialized in tax practice completing a Master's Degree in Taxation at Centro de Estudios Garrigues. Subsequently, she has obtained the title of expert in International Taxation at ESADE.

She is specialized in tax advice for individuals and legal entities both nationally and internationally.

She has extensive experience in advising individuals (Personal Income Tax, Wealth Tax, Non-Resident income Taxes), as well as in advising family businesses, indirect and real estate taxation, and international taxation. In the latter field, she has extensive experience in all matters affecting non-residents in Spain, both companies and individuals, as well as the study, planning and execution of Spanish investments abroad and foreign investments in Spain. Likewise, she has managed many international mobility processes in relation to the expatriate employees of many large companies, from the initial planning of the expatriation to the fulfillment of the tax and legal obligations derived from them.

Moreover, has participated in many verification and investigation procedures before the Spanish Tax Administration.

Before joining the tax department of OPTIO Next Law, she had worked as a lawyer in Pedrosa Lagos and has also been working in international firms such as KPMG.

She is a member of the Barcelona Bar Association.