Strategic legal advocacy before all levels of Luxembourg’s judiciary
At Lex Thielen & Partners, litigation is not a last resort. It is a core strength. We represent individuals, businesses, and institutions in civil, commercial corporate and administrative disputes before all Luxembourg courts, from the magistrate courts to the Cour de Cassation. When needed, we also appear before the Court of Justice of the European Union and the European Court of Human Rights.
Whether we are acting for a company in a shareholder conflict, defending a professional in criminal proceedings, or resolving cross-border insolvency matters, we work with clarity, structure and purpose. Our litigation practice is led by Cyril Chapon and supported by decades of courtroom experience across sectors and jurisdictions.
Specialised experience in real estate litigation
Disputes involving rental agreements, construction delays, or building defects are increasingly common in Luxembourg. We assist landlords, tenants, property owners and developers in resolving these matters efficiently. Our team combines legal insight with procedural expertise, from eviction proceedings and lease enforcement to structural defect claims and liability for building delays.
We also support clients in avoiding costly escalation by identifying early options for settlement or alternative dispute resolution. When court action is required, we litigate with precision and discipline.
Our Litigation & Dispute Resolution Services
- Civil and Commercial Litigation
Representation in contract and tort claims, professional liability cases, property disputes, banking litigation, and internal business conflicts. - Criminal Defence
Representation in white-collar and general criminal matters, from investigation through final appeal. - Real Estate and Construction Disputes
Legal support in landlord–tenant disputes, lease enforcement, construction defect claims, unpaid works, and related liability matters. - Arbitration and Mediation
Counsel in domestic and international arbitration procedures under Luxembourg law and ICC rules. - Bankruptcy and Insolvency Proceedings
Strategic representation for creditors, debtors, and shareholders in local and cross-border insolvency cases. - Administrative and Regulatory Proceedings
Advice and representation before Luxembourg supervisory bodies including the CSSF and Luxembourg Stock Exchange. - Enforcement of Judgments
Support with enforcing Luxembourg and foreign court decisions or arbitral awards, including precautionary measures and asset recovery.
Why Clients Choose to Work With Us
We simplify procedures and guide clients through uncertainty. In one white-collar defence case, we dismantled a three-year prosecution through procedural precision, leading to full acquittal and rare appellate confirmation.
From initial hearings to high court appeals, our litigation work is grounded in deep knowledge of Luxembourg procedure. In one high-impact civil case, our argument before the Cour de Cassation led to a reversal that shifted the outcome of a long-running family dispute.
We act quickly and decisively when time, assets or reputation are at stake. Our team has reversed bankruptcy orders, enforced foreign judgments, and protected vulnerable clients within days of engagement.
Because we litigate, we see where problems start. This insight strengthens how we advise clients on contracts, compliance and governance helping prevent disputes before they arise.