Welcome to Gillioen Avocats
Law firm practicing in immigration law
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Corporate clients
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Private clients
Meet the team
Alexandre GILLIOEN
Partner & Founder
After spending many years living in various foreign cities and countries (Brussels, London, Washington, Douala), I decided to set up my practice in Lyon, a city I see as full of opportunity and ideal for a fresh start. Lyon, a human-scale city located close to Switzerland and Italy, is also a welcoming place for those of us who choose to put down roots here. For the past ten years, my practice has been fully dedicated to immigration law, and I now handle the full range of procedures relating to immigration in France, from residence permits to naturalization, as well as litigation before the administrative courts.
Sarah STADLER
Senior Associate
After four yours working in Paris as an immigration lawyer, Sarah joined the Defenseur des droits. She worked there to help people who are facing difficulties facing the french administration and on cases where people’s rights were not respected. She then went on to work at the Court d’appel de Grenoble and also for the OFII. Following these experiences Sarah came back to the Bar association and joined our firm as a senior associate with more than ten years experience in the field of immigration law both with the administration and as a lawyer.
Testimonials
To live and work in France
After several years of practice, the firm has developed a unique set of skills in the field of immigration law. All the people and companies we advise have a common goal: to achieve a stable and sound situation on the long term concerning their immigration status and the right to work in France.
We are going to make it happen together
The firm is located in Lyon, a dynamic city full of opportunities, however we operate everywhere in France to assist our clients according to their needs, whatever they may be.
Last articles published
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Resident Card Resources: Good News!
Excerpt: Resident card resources are a decisive condition for obtaining the card. In a recent decision dated August 3, 2026, the Conseil d’État (Council of State) just provided a crucial clarification that could unblock…
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New Citizen’s Handbook for the Assimilation Interview in Naturalization by Decree
Excerpt: The new citizen’s handbook for the assimilation interview came into force following a decree dated 3/7/2026. This article is a short focus on this new version and what it means for those applying…
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Foreign Students in France: Required Minimum Resources Set to Rise Sharply From August 1, 2026
Excerpt: Starting August 1, 2026, the required minimum resources foreign students will be significantly higher than the level of monthly income than today. This follows a decree published in the Official Journal on June…
