Team

Me SADLER is a criminal lawyer at the Luxembourg Bar since 2016. She acquired solid experience in two law firms before deciding to found SADLER & Partners in 2020. Me SADLER assists you at all stages of criminal proceedings (investigation, pre-trial detention, trial, enforcement of sentences) and whatever your capacity (suspect, perpetrator, victim).

Education:

• Law degree from the Faculté de Droit de Strasbourg (France)
• Undergraduate Certificate King’s College London (United Kingdom)
• Master II Human Rights at the Faculty of Law, Strasbourg (France)
• Internship at the Canadian Council for Refugees in Montreal (Canada)

Other commitments:

• President of the Consultative Commission on Human Rights
• Substitute member of the Venice Commission of the Council of Europe
• Member of the European Criminal Bar Association (ECBA)
• Member of the Association Luxembourgeoise des Avocats Pénalistes
• Member of the Criminal Law Commission of the Luxembourg Bar

Publications and conferences:

• Panelist at the round-table discussion on “SEX WORK IN LUXEMBOURG”-2026
• Panelist at the PHD SEMINAR “HUMAN RIGHTS: INSIGHTS TO TODAY’S CHALLENGES”-2025
• Liberté religieuse et État de droit : perspectives européennes et luxembourgeoises – AGEFI – avril 2026
• FORENSIC DNA PHENOTYPING: The Ethics of Forensic Genetics, Effective Social and Legal Oversight, and Technical Advancements – Uni.lu – 2023
• LA TRAITE DES ETRES HUMAINS -protection et assistance des victimes de la traite des êtres humains – Barreau de Luxembourg – 2022
• LA DÉFENSE DES DROITS ET LIBERTÉS AU GRAND-DUCHE DE LUXEMBOURG, edited by Jörg Gerkrath, published by LARCIER, 2020

Me SADLER is fluent in Luxembourgish, French, English, German and Spanish (basic)

Me WARIN swore her oath in 2017 after she obtained her PhD from the University of Luxembourg. She joined Etude SADLER & Partners in 2022.

Her areas of practice include European Union law, human rights and fundamental rights, administrative law, and asylum and immigration law. She has authored several publications in those areas and she is an associate professor at the University of Lille.

Education:

• Alumna of the Ecole normale supérieure de Cachan,
• Sciences Po Paris graduate
• PhD in Law, University of Luxembourg

Other commitments:

• Lecturer at the European Institute of Public Administration and at the University of Luxembourg
• Co-founding president of Passerell
• Member in the Odysseus academic network
• Chair of the Migration Committee of the Council of Bars and Law Societies of Europe.

Publications et conférences récentes:

• Publication : « Réhumaniser le droit d’asile », Revue trimestrielle de droit européen, 11/2024, n°3
• Publication : « Gender in EU Asylum Law: the Istanbul Convention as a Game Changer? », International Journal of Refugee Law, eeae004, https://doi.org/10.1093/ijrl/eeae004, 2024
• Publication : «Arrêt “Nordic Info” : petit manuel de droit de l’Union appliqué à une crise sanitaire », Journal de Droit européen, 2024/4
• Conférence : Mieux protéger les droits fondamentaux et les droits humains : synergies entre droit de l’Union et traités onusiens (co-organisée avec Cecilia Rizcallah), 19 septembre 2025, Luxembourg

Me WARIN is fluent in French, English, German, Luxembourgish

Me Julie Oé joined Etude SADLER & Partners in February 2024 as a legal adviser and was sworn in as a barrister in June 2025. She specializes in European and international human rights law, immigration law and asylum law.

Education :

• Law degree from the Faculty of Law at the University of Luxembourg
• Master 1 in Freedom Law at the University of Strasbourg
• Master 2 in Humanitarian Affairs and NGO Law at the University of Strasbourg

Ms Oé welcomes you in Luxembourgish, French, German, English and Spanish (notions).

Me Manna Delaroche joined Etude SADLER & Partners in March 2026 and was admitted to the Luxembourg Bar in June 2026. Specializing in fundamental rights and international criminal law, she primarily practices in the areas of criminal law, human rights, asylum and immigration law, and family law.

Education:

• Bachelor of Laws in Public Law, Faculty of Law and Political Science, University of Nantes;
• Master 1 in International and European Law, Faculty of Law and Political Science, University of Nantes;
• Master 2 in International and European Protection of Fundamental Rights, awarded by the University of Nantes in partnership with the Agence universitaire de la Francophonie (AUF).

Publication :

• Chapter “War Crime,” in Lacambre, M. (ed.), Violence and Violent Behavior, “Monographs in Psychiatry” series, Elsevier Masson, 2026

Me Delaroche welcomes you in French, English, and Spanish.

Ms. DA SILVA MONTEIRO joined Etude SADLER & Partners in 2021 as administrative assistant. Ms. DA SILVA MONTEIRO is fluent in Luxembourgish, Portuguese, French, English and German.