Cabinet d'avocats Altea
Cabinet d'avocats Altea
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Administrative and Constitutional Law
Immigration Law
international Family Law

Slide One

Administrative and Constitutional Law
Immigration Law
international Family Law

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Altea Attorneys

Lawyer Brussels

Founded in 2012 by Michel Kaiser, Céline Verbrouck, Emmanuel Gourdin, and Catherine de Bouyalski – all certified as specialists in their respective practice areas by the Bar Council (Ordre des avocats) – Altea offers world-class legal services in the areas of public law, constitutional and administrative law, immigration law, nationality law, and private international family law.

The fifteen or so lawyers that make up the Altea law firm were naturally brought together by the complementary nature of their practice areas, paired with an active desire to promote the shared values associated with these areas of the law. They are bound by a shared passion for the defence of human and civil rights.

The high quality of the services provided by the firm requires them to fully master administrative and judicial procedure – even in international suits – as well as to be able to offer highly specialised legal and strategic advice in each of their practice areas.

In its areas of expertise, Altea vigorously defends the interests of its clients, be they individuals, public authorities, non-profit groups, or business entities. Altea therefore stands apart by providing premium professional legal services to all types of clients and by its commitment to ensuring that these services remain accessible.



Our services

Our areas of expertise

Altea is a firm of specialists who have experience and expertise in their chosen fields and who strive to be accessible.

We have two teams working alongside each other, each with their own skill set. Their usual fields of activity are, but not exclusively :


Our newsletters

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  • European Court of human rights: Change of time-limit for lodging applications

    (Published on 31/01/2022)

    Protocol No. 15 to the European Convention on Human Rights came into force on 1 August 2021 once it had been signed and ratified by the 47 member States of the Council of Europe. The main changes brought about by this Protocol consist in the additions to the Convention of express references to the principle of subsidiarity and the margin of appreciation doctrine.

    Read more ...  
  • M-Card valid as proof of legal stay in Belgium for the acquisition of the Belgian nationality

    (Published on 14/10/2021)

    British citizens who “exercised their right to reside” in Belgium before January 1, 2021, and “continued to reside thereafter”, can apply until December 31, 2021, for the status of beneficiary of the Withdrawal Agreement (art. 47/5, §3 from the law of December 15, 1980, on the access to the territory, stay, establishments and return of the foreigners, and art. 69undecies, 1° from the royal decree of October 8, 1981, on the access to the territory, stay, establishments and return of the foreigners).

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  • Declaration of Belgian citizenship in cases of children over the age of 5 years who are born abroad to a Belgian parent born abroad

    (Published on 10/06/2021)

    The Code of Belgian Nationality provides that a child born abroad to a Belgian parent who is him or herself born abroad, is Belgian if the Belgian parent makes an ‘award declaration’ (déclaration d'attribution/toekenningsverklaring) claiming Belgian nationality on behalf of the child (Article 8, (1) (2)) within 5 years of its birth.

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  • Belgium – Immigration and citizenship: Country update 2021 – European Immigration Lawyers Network

    (Published on 03/06/2021)

    1. Country Overview

    Belgium is experiencing an increase in immigrant inflows and a decrease in outflows. Among EU citizens, more than half of first-issue residence permits are being granted for professional reasons. On the other hand, in the case of third-country nationals, family reasons are given as the main reason in the same scenario (45%).

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  • Authorisation for essential travel to Belgium from India, Brazil or South Africa and for non-EU nationals

    (Published on 10/05/2021)

    A Ministerial Order, amending the Order of 28 October 2020, “introducing emergency measures to limit the spread of the COVID-19 coronavirus”, was published in the Belgian Official Gazette on 28 April 2021.

    In order to limit the spread of new variants in Belgium, the Ministry of Foreign Affairs has already advised Belgian nationals or those with their primary residence in Belgium against travel to Brazil, South Africa or India.

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Altea brings together lawyers highly specialised in:

- Constitutional and administrative public law;

- Foreign nationals and private international family law.

The firm strives to be accessible.

Altea covers many intertwining areas but the firm’s lawyers all have an interest in defending human rights.


Boulevard Louis Schmidt 56, 1040 Etterbeek - Belgium

+32(0)2 894 45 70