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

  • Belgium – Immigration and citizenship: Country update 2023 – European Immigration Lawyers Network

    (Published on 06/08/2023)

    1. Country overview

    The year 2022 was marked by the asylum reception crisis. For months, the Belgian government has been failing to comply with its legal obligations regarding the reception of asylum-seekers.

    Read more …
  • Reacquisition of Belgian citizenship from overseas : petition

    (Published on 08/02/2023)

    Sign the petition:

    As a rule, reacquisition of Belgian citizenship is required to be done on Belgian soil, after one year of residence in Belgium and provided that one has an unlimited residence permit in Belgium at the time of their application (Article 24 of the Belgian Nationality Code).

    Read more …


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