The legalization of foreigners in Portugal involves obtaining residence permits, visas, and regularizing immigration status with the Immigration and Borders Service (SEF)
This process is essential to ensure that foreign citizens can live, work, study, or invest legally in the country.
Similarly, obtaining Portuguese nationality offers numerous benefits for those wishing to live in Portugal or even in another European Union country.
The nationality process can be complex, involving different requirements and procedures depending on the specific case, such as acquisition by marriage, descent, or length of residence.
Specialized advice becomes even more important considering the recent changes in Portuguese Nationality Law.
Legalization of Foreigners and Nationality: How We Can Help
We have extensive experience in this area, providing the best legal services to foreign citizens with technical expertise, efficiency, and promptness
Our foreign legalization services are relevant to any citizen looking to build their life, either temporarily or permanently, in Portugal, benefiting from the conditions that a residence permit offers. We are referring to:
- Exercise of professional activity
- Investment activity (Golden Visa);
- Entrepreneur immigrants (Startup Visa)
- Students;
- Family reunification effects.
In this area, among others, we provide the following legal services
- Document research with the District and Central Archives;
- Document research with the Civil Registry Offices
- Advice on tax and social security matters – obtaining a Tax Identification Number and a Social Security Identification Number.
- Advisory in the administrative procedure for requesting an extension of the residence visa;
- Support in managing and processing the entire administrative procedure for obtaining a residence permit with the competent authority, the Immigration and Borders Service (SEF)
- Obtaining ARI – Residence Authorization for Investment Activity (Golden Visa);
- Obtaining Residence Authorization for entrepreneur immigrants (Startup Visa);
- Obtaining Residence Authorization for the exercise of professional activity
- Obtaining Residence Authorization for research, study, professional internship, or volunteering;
- Obtaining Residence Authorization for family reunification;
- Obtaining Residence Authorization for holders of long-term resident status in another European Union member state
- btaining Residence Authorization 'EU Blue Card
- Advisory and legal consultancy throughout the process of obtaining Portuguese nationality.
Our team
Dr. Helena Castro, along with other members of our team, is responsible for the area of legalization of foreigners and obtaining Portuguese nationality.
With all seriousness and ongoing support, we will analyze your request and assist you in this regard.

