SERVICES

Legal Due Diligence in Spain

Before you invest, acquire, or merge, uncover the complete legal reality of the company. Our Legal Due Diligence service in Spain provides a comprehensive analysis to identify risks and opportunities, empowering you to make your decision with total confidence.

online scheduling

Book your Appointment Now

The best way to start solving your doubts is to schedule a call with one of our professionals.

All prices are final and include VAT. We have interpreters from French, Portuguese, Arabic (Moroccan variant), Russian and Ukrainian. Other languages may be available on request

€80

30’

video call

Immigration Consultation

Unsure of the requirements to immigrate to Spain? We provide a clear path forward and manage the entire process for you.

*The cost of the consultation is deducted from the final service fee.

€185

45’

video call

Tax Consultation

Perfect for individuals and companies in Spain who require expert guidance on complex tax matters.

*The cost of the consultation is deducted from the final service fee.

€250

60’

video call

Immigration and Tax Planning

A comprehensive session to make informed decisions before moving to Spain. We analyse your legal residence, the potential tax impact of your relocation and the obligations you should anticipate.

*The cost of the consultation is deducted from the final service fee.

About the service

What is the Legal Due Diligence in Spain?

An investment or acquisition is a high-stakes decision. A Legal Due Diligence in Spain is the essential investigation that provides a clear and detailed X-ray of a company’s legal health before you commit your capital. It is your shield against hidden liabilities and unforeseen risks.

This process is about verifying all the legal information a company presents.

Our mission is to uncover any “red flags” that could impact the company’s valuation or create problems post-acquisition. We analyze every critical area of the business.

We conduct a thorough corporate review, examining the company’s deeds, bylaws, shareholder agreements, and board minutes to ensure its structure is solid and there are no hidden ownership conflicts.

Our team scrutinizes all commercial contracts with key clients, suppliers, and partners, looking for problematic clauses, termination risks, or unusual obligations.

A deep dive into labor law is crucial. We review employment contracts, social security compliance, and any ongoing or potential litigation with employees to assess potential liabilities.

We also conduct a tax due diligence, analyzing the company’s tax history to confirm it is compliant with all its obligations and to identify any potential fiscal risks or contingencies.

In the tech and brand-driven market, intellectual property is a core asset. We verify the ownership and correct registration of trademarks, patents, and software.

Finally, we audit for regulatory compliance, including data protection (GDPR), ensuring the business operates within the legal framework and isn’t exposed to significant fines.

Our deliverable is a comprehensive report that doesn’t just list findings but provides a strategic assessment. We highlight red flags, quantify risks, and give you the essential intelligence you need to negotiate better terms or, if necessary, walk away from the deal.

Enjoy all the Benefits it has to offer

The benefits of Legal Due Diligence in Spain

Identify Hidden Risks

Uncover legal, labor, and tax liabilities before you invest.

Strengthen Your Negotiation

Use our findings to negotiate a better price and terms.

Make Informed Decisions

Base your final decision on a complete and objective analysis.

Ensure a Smooth Integration

Anticipate legal challenges for a seamless post-acquisition process.

Are you eligible?

Requirements to apply for a Legal Due Diligence in Spain

These are requirements for Legal Due Diligence in Spain applicants:

Clear Transaction Objective

You must have a defined objective, whether it’s a potential investment, a merger, or the full acquisition of a target company.

Identified Target Company

A specific Spanish company must be the subject of the due diligence process.

Access to Information

The target company must be willing to provide access to its confidential legal, financial, and operational information.

Defined Scope of Work

You need to have a clear idea of the areas you want to investigate (e.g., corporate, labor, tax) to define the scope of the report.

Confidentiality Agreement (NDA)

In most cases, you will need to sign a Non-Disclosure Agreement with the target company before the process can begin.

Do you have any questions about the immigration process to Spain?

REQUIRED DOCUMENTATION

Necessary documentation for the Legal Due Diligence in Spain

This is the necessary documentation for the Legal Due Diligence in Spain

Corporate Documents: The company's deeds of incorporation, bylaws, and shareholder registry book.
Shareholder Agreements: Any private agreements signed between the company's shareholders.
Financial Statements: The Annual Accounts from the last 3-5 fiscal years.
Key Commercial Contracts: Agreements with the most important clients, suppliers, and strategic partners.

Employee Information: Anonymous list of employees, types of contracts, and details of any ongoing litigation.
Tax Filings: Corporate Tax and VAT returns from the last 3-5 fiscal years.
Intellectual Property Titles: Certificates of registration for trademarks, patents, or other IP.
List of Assets & Properties: Deeds for any real estate and a list of significant company assets.

Our numbers speak for themselves

Our track record

On average, we tell good news about their immigration cases to 9-10 people each day. A real perk of the job.

Refusals overrulled in appeals

+ 0

Immigration cases solved and in process

+ 0

Appeals efficiency

0 %

Join a Community of Satisfied Customers

      EXCELLENT  
   Based on 501 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Givago Dias Mendes 
 27/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. Muy educado, eficientes, organizados. También rápidos. Mejor experiencia posible!
  
 
      Posted on Google  
   
   Anastasia Danilova 
 26/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. I would like to sincerely thank Marc and Soundous for all the support they gave me and my mom in obtaining our residence. You are an amazing team, and I feel very lucky to have found your company to guide us through this process.
  
 
      Posted on Google  
   
   Camryn Jones 
 25/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. I had an amazing experience working with Dario and his team throughout my visa process. They made everything completely stress-free and were incredibly helpful every step of the way. Dario speaks excellent English, which made communication easy and comfortable, and he was always responsive, patient, and clear in explaining everything. He and his colleagues handled every detail with care, efficiency, and in a very timely manner, which gave me a lot of confidence and truly made my life so much easier throughout the entire process. By far the best lawyer I’ve worked with in Barcelona. I couldn’t have asked for a better experience and would highly recommend Dario and his team to anyone needing help with visas or immigration.
  
 
      Posted on Google  
   
   Marc Ovalle 
 22/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. We have been working with Marc and his team and the experience has been truly remarkable! From day one, their professionalism has been outstanding. The depth and breadth of knowledge across the entire team have consistently impressed us and given us complete confidence in our partnership. They are reliable, insightful, and truly committed. Thank you Marc!
  
 
      Posted on Google  
   
   Karen Oelrich 
 20/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. He tenido una muy buena experiencia, nos ayudaron en la resolución de dudas y consultas desde el primer contacto. El proceso fue muy rápido, claro y expedito.
  
 
      Posted on Google  
   
   Abs Ka 
 19/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. A friend recommended Illay Legal  to help obtain my permanent residency in Spain. Exceptional service! Marc explained every part of the process clearly and precisely. Once I provided all the necessary details, the team did all the work: pre-completed the necessary paperwork, helped retrieve padron and digital tax certificate, secured appointments in my preferred neighbourhood and checked in with me before and after both appointments. I subsequently switched both my tax and business accountancy contracts to Marc's firm and have enjoyed the same very high level of service. Communication via email and WhatsApp, and extremely responsive to answering any small or large questions/concerns. A huge endorsement to the whole team - I would highly reccomend. Regards Ismail
  
 
      Posted on Google  
   
   Dean 
 11/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. Awesome service, got my permanent residency quickly and without any issues
  
 
      Posted on Google  
   
   Anastasiia Sizova 
 10/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. Lawyers I truly trust and genuinely enjoy working with. Huge thanks to Marc and Soundous for guiding me through a very stressful documentation process over the past few years. Together we managed to resolve a complicated situation I ended up in because of a bureaucratic issue with my previous paperwork. They have well-organized processes and a lot of experience with different kinds of cases — even the tricky ones. Whenever I was stressed or freaking out, they were always there to reassure and support me. That human approach means a lot. With them, you are in very good hands 💚
  
 
      Posted on Google  
   
   MRI. Emran 
 10/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. ILLAY Legal handled my immigration case in Spain very professionally and completed it on time. Highly recommended!
  
 
      Posted on Google  
   
   Adriana Garzon 
 09/03/2026
 
 
 Trustindex verifies that the original source of the review is Google. Excelente asesoría y muy oportunos los tiempos. El acompañamiento en todo el proceso es de gran calidad.
  
 
  
  
 
     Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

FAQ

Frequently asked questions about the Legal Due Diligence in Spain

Why is a Legal Due Diligence essential before an investment?

It is your primary risk mitigation tool. It provides an independent verification of the target company’s claims and uncovers hidden liabilities that could significantly impact its value or even make the deal unviable.

How long does a typical due diligence process take?

The duration depends on the size and complexity of the target company. A standard due diligence for a startup or SME typically takes between 2 to 4 weeks from the moment all the documentation is available in the data room.

What is a "red flag" in a due diligence?

A “red flag” is any significant legal issue or risk discovered during the investigation. Examples include unregistered intellectual property, major tax debts, critical contracts without a change of control clause, or ongoing litigation.

Can the results of the due diligence affect the price of the acquisition?

Yes, absolutely. The findings are a powerful negotiation tool. If significant risks or liabilities are uncovered, the buyer can use this information to negotiate a lower purchase price or demand specific guarantees in the sale and purchase agreement (SPA).

Is this process only for big acquisitions?

No. A due diligence process is scalable and is crucial for any type of investment, from a seed round in a startup to a full acquisition of a large company. The scope is simply adapted to the size and risk of the transaction.

Guiding you in every step to your bright future.
Ready to start?