About us

CostaLuz Lawyers is a small, dedicated team of professionals under the direction of Maria de Castro. As a business, we have made a commitment to doing everything we can to make Spain the best possible country for you – whether you are an investor, resident or visitor.

We treat all our clients in the same way that we would wish to be treated in their situation.

Meeting our clients’ expectations can be a challenge at times, but we pride ourselves in doing the very best for each individual client to help them obtain the optimum outcome.

Maria Luisa de Castro

maria ABOUT US

Maria Luisa de Castro is the Director of the CostaLuz Lawyers team. Born in 1973, she is married with two children, Teresa (8 years) and Jacobo (6 years). From 1990-1995, she attended Law School at the University of Seville, and completed a Doctorate in Constitutional Law between 1995 and 1997 before embarking on a professional law career.

In 2000, María visited the United States for the first time, to work with David Coolidge as part of an interdisciplinary programme in Family Law in Washington DC. She is a Blackstone Fellow, a Witherspoon Fellow and a John Jay Institute Alumna in the USA. María stayed in Washington until August 2001 and was just about to be hired and start working under David’s wonderful mentorship when he was diagnosed with brain cancer and sadly died within 9 months.

Following this painful loss of a mentor, colleague and personal friend, María returned to Spain where she started working as a lawyer alongside her brothers Jaime and Ignacio de Castro in the law firm De Castro Gabinete Juridico, which her father, Jaime Castro had founded in 1988. The firm has a great deal of experience in all aspects of civil law, commercial law, administrative law, family law, maritime law, and criminal law. The firm’s litigation specialists are now used by María’s own legal firm, Costa Luz Lawyers, as her litigation team. This allows her to devote all of her time to provide a client legal information service and to write legal articles and information booklets for English speaking people in Spain.

María completed her MA at the University of Navarre from 2002 to 2004. Her wedding to Luis, a video editor and a blogger on Eye on Spain, took place in Grazalema in September 2004.

Following several years of fighting against property developers and banks for the rights of off-plan property buyers in Spain, her efforts are now focused on attracting foreigners to come to Spain, whether to live, to work, to set up a business or to retire. Relocation Services – including conveyancing – and legal work to enhance the commercial prospects for international companies in Andalucía, especially in the Province of Cadiz.

Since 2006, María has also been a regular contributor on the internet forum Eye on Spain, for which she also writes a Blog.

Rocio Medialdea

Rocio Medialdea Costa Luz LawyersRocio Medialdea was born in 1978 in Cadiz, the so called “La Tacita de Plata” (The Silver Teacup). For the past 20 years, she has been living in Algeciras, where she met her husband Ignacio. Rocio is the mother of four children.

Algeciras has a high volume of import and export traffic and one of the most important commercial ports in Europe. Rocio chose to study International Trade due to the proximity of this area to Morocco, and worked in this field for 3 years subsequently until she came to CostaLuz Lawyers where she is happy to help clients solve their problems.

Rocio’s favourite hobbies are travelling and animals – she is the proud owner of three adorable kittens and two dogs.

Almudena de Gracia Maruenda

Almudena de Gracia Costa Luz Lawyers

Almudena de Gracia Maruenda was born in Cartagena (Murcia) in 1973.

She graduated with a degree in Business (Information and control) from the University of Cadiz, Escuela Universitaria de Estudios Empresariales de Jerez de la Frontera, in 1997. In 2005, she completed a Masters Degree in Economic Management and Urban Construction and Real Estate Business at the University of Málaga, gaining academic expertise in the fields of accounting, finance and taxation of construction companies and real estate.

Almudena’s career is built around Tax Consultancy and Accounting, specifically in the areas of administration, fiscal management, financial accounting, analysis, cost analysis and taxes. She is passionate about her profession and is committed to using accounting management for optimal business performance.

Almudena lives in Algeciras and is married with two children. In her spare time, she loves tennis, music and reading.

Mari‐Carmen Romero

Mari Carmen Romero Costa Luz Lawyers

Mari‐Carmen Romero was born in Algeciras in 1987. She spent her childhood in Ciudad Real, in Castilla‐La Mancha, the fabled land of Don Quixote. In 1998, she returned to Algeciras and has lived there ever since. She has one daughter.

Mari‐Carmen studied Public Administration and Management in Algeciras, finishing in 2009. Studying for 3 years, she passed the national examinations for Court Clerk but is still waiting for an opening.

She joined CostaLuz Lawyers in 2012 and, during this time, has been improving her English at an astounding rate.


Keith Rule

Keith Rule Costa Luz Lawyers

Keith Rule was born in London in 1967. He lives in the UK and has two sons.

In 2006, Keith paid a deposit to reserve a Spanish off-plan property, but he did not receive a bank guarantee. Therefore, when the developer abandoned the development project, Keith’s investment was at serious risk.

Keith discovered a very important Spanish Law, LEY 57/1968. He gathered a small group known as the Finca Parcs Action Group, against the Bank.

In September 2008, he made contact with CostaLuz Lawyers’ María de Castro and, after a 7-year legal battle, Finca Parcs Action Group finally won the case. As a result of this experience and its successful outcome, Keith is now employed on a part-time basis to manage CostaLuz Lawyers’ UK office.

Mar Durio

Mar Durio Costa Luz Lawyers

Mar Durio was born in Cádiz in 1969. She has a degree in Tourism from CENP (Centro Español de Nuevas Profesiones), a Tourism School that is part of the University of Seville.

Mar spent several years in England and Germany where she really improved her language skills. Following a period spent in the Canary Islands and Costa del Sol, where she worked in the banking and finance sectors respectively, she returned to the Cádiz province.

Mar is a specialist in Non-Resident Taxation and is fully conversant in Spanish, English and German. She loves sailing and the theatre and takes drama lessons when she gets a chance.

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