Living in Spain — whether permanently or for long periods — often involves important legal decisions that affect your family and assets. At CostaLuz Lawyers, we support international private clients with clear, practical legal planning designed to prevent problems and protect what matters most.

Our services include:

• International wills (testamento internacional) and estate planning

Important: Spanish succession follows two distinct paths depending on whether the deceased left a valid will (testate) or not (intestate). The intestate path requires a Declaration of Intestate Heirs (Declaración de Herederos Abintestato) — a step not needed when a will exists. Learn more about the succession process →

• Preventive powers of attorney (poder preventivo) and standard powers of attorney (poder notarial)
• Prenuptial and marital property agreements (capitulaciones matrimoniales)
• Inheritance and succession procedures in Spain (procesos sucesorios)

We also offer expert services in preparing a power of attorney and managing inheritance matters, ensuring that all aspects of your life in Spain are legally sound and secure. With a commitment to personalized attention and in-depth legal knowledge, CostaLuz Lawyers is here to help you smoothly transition into life in Spain.

 
 
 
 
 
 
 
  
 
 
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I have approached Maria on more than one occasion for help and in each case I was given extensive, professional and correct advice both concerning our own property and Resort issues as well as personal problems.
I cannot recommend highly enough.
He recurrido a María en más de una ocasión para pedirle ayuda y, en cada caso, recibí un asesoramiento amplio, profesional y preciso, tanto sobre nuestra propiedad y el complejo turístico como sobre problemas personales.
La recomiendo encarecidamente.
  
 
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 Richard Ansley 
 
 
 
 
  
 
 
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Great service from Maria at Costaluz
  
 
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 stu butcher 
 
 
 
 
  
 
 
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Great communication and follow through. Very professional law firm, I would highly recommend them!
  
 
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 Leon Voom 
 
 
 
 
  
 
 
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Fantastic and professional firm. They really stepped up during a negotiation with a tight deadline, working through multiple revisions with a singular focus on delivering the best possible results on my behalf. I was skeptical of contracting any legal help for the matter in question, and feel so vindicated because I could have never achieved the results they did. They truly have your back.
  
 
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 Evan Ross 
 
 
 
 
  
 
 
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I moved from us to Spain, I used Beatrice and she did a great job for me! Very informative
And very nice.
Scott S
  
 
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 Scott Smith 
 
 
 
 
  
 
 
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I had some questions about NLV visa and basic questions about taxes. Maria Castro was so kind to answer my emails and give me some guidance and even some interesting thing's I never thought of. Her answers were very concise and knowledgeable. The internet is full of misinformation. Go to a professional so you don't make a costly mistake. Thanks Maria.  Now I know when I am ready who my lawyer will be.
  
 
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 Larry Kosova 
 
 
 
 
  
 
 
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They are very professional, I got my favorite result.Many thanks
  
 
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 marjan maneshgar 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
The CostaLuz Lawyers were able to recoup 2 years worth of taxes paid in error to the Spanish government!  I appreciate their professionalism and swift attention to detail. The office was always courteous and helpful.  I had searched for help with my tax dilemma without success until I found CostalLuz! Thank you always!
  
 
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 Diana Baca 
 
 
 
 
  
 
 
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I have used Costaluz Lawyers for gaining residency and continued support with Spanish Tax. I highly recommend them, they do everything they can to ensure a favourable outcome and always provide a high level quality service and support.
  
 
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 Thomas Epton 
 
 
 
 
  
 
 
 Trustindex verifies that the original source of the review is Google. 
Very professional and very knowledgable. Maria Luisa, María Carmen and Álvaro were extremely helpful. As a U.S. expat and permanent resident of Spain, I was having difficulty understanding why Spain was taxing me on my U.S. Social Security benefits. Álvaro helped me interpret the pertinent sections of the bilateral agreement and I came away with a much better understanding. I still have to pay taxes, but now I understand WHY. Thanks again to all of you!
  
 
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 Judith Deshotels 
 
 
 
 
  
 
 
 
 
    
 
 

About CostaLuz Lawyers

The Costaluz Lawyers team is made up of highly experienced legal experts whose maxim is to provide premium customer service and ensure that all clients receive the best possible outcome to their case.

Maria de Castro

CEO and founder

María qualified as a lawyer in 1998 and founded Costaluz Lawyers in 2006. Since then, she has made it her mission to help foreigners understand Spanish law and to achieve better consumer protection. Maria, more recently has focused on Spanish property and immigration law.

To Email Maria Directly: 

marialuisa@costaluzlawyers.es

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Probate and Succession Claims

In most cases, heirs to an estate resolve probate without requiring court action. Claims are not generally necessary, particularly if the deceased left their affairs in order and made a will in Spain. However, on occasions, the heirs may dispute the terms of the will and need to initiate probate and succession claims read more…

A full guide to Residency and Nationality Options in Spain

Spain is a dream for permanent and temporary relocation. However, dealing with Spanish bureaucracy can be a nightmare, especially when it comes to getting your Spanish residency in order read more…

Buying, Renting or Selling Property in Spain

Our mission is to deliver independent, efficient, and high-quality legal services to non-Spanish speakers who visit or reside in Spain. We are committed to offering personalized attention with a focus on truthfulness, honesty, and dedication, ensuring that every client receives the support and expertise read more…

Call us (EN/ES): +34 919 499 342

Content on this page is reviewed by Maria de Castro, lawyer (Cádiz Bar no. 2745); drafting may be assisted by AI tools. Our editorial policy