Alfonso Carrillo

Partner
Litigation & Insolvency

Alfonso Carrillo is a partner at Mirlo, where he heads the Litigation and Insolvency department and leads the Arbitration practice.

A lawyer since 2005, he has over twenty years of experience, having spent more than fifteen years at national and international firms in Madrid, seven of them as a partner leading the Litigation and Insolvency area. Previously, he was a partner at Bird & Bird and at Broseta Abogados.

Alfonso specialises in resolving complex disputes, particularly those involving insolvency situations or high-stakes commercial conflicts. He has extensive experience in commercial, real estate, construction, banking, sports and insolvency litigation. In the field of arbitration, he has acted as party counsel, arbitrator and tribunal secretary, serving as an arbitrator in various national courts such as the CAM, CIMA, CEA, LaLiga's Football Arbitration Tribunal and the Spanish Sports Arbitration Court of the Spanish Olympic Committee.

Alfonso speaks Spanish, English and Italian.

  • · LLB in Law, University of Murcia.

    · Master in Corporate Legal Advice (LLM), Instituto de Empresa, Madrid.

    · Master in International Legal Practice, University of Murcia.

    · FIFA Executive Programme in Sports Arbitration, Madrid, Buenos Aires, Zurich.

    · Advanced Arbitrator Practice Course, CIAM-CIAR, Madrid.

  • · Professor of Insolvency Law and International Insolvency Proceedings, Universidad Carlos III de Madrid.

    · Professor of Banking Procedural Law, Master's in Legal Practice, IE Law School.

    · Professor of Alternative Dispute Resolution: Mediation and Arbitration, Universidad Rey Juan Carlos.

    · Professor on the Advanced Specialisation Course in Civil and Commercial Litigation, Universidad Complutense de Madrid.

  • · Arbitrator at the Civil and Commercial Court of Arbitration (CIMA), Spanish Court of Arbitration (CEA), LaLiga Football Arbitration Tribunal (TAF) and Spanish Sports Arbitration Tribunal of the Spanish Olympic Committee.

    · Member of the Spanish and Ibero-American Arbitration Club (CEIA).

    · Founding partner and board member of the Spanish Insolvency Law Club (CEDI).

    · "Sports arbitration and judicial review in the EU: the RFC Seraing case", LA LEY mediación y arbitraje, no. 24 (co-author with Andrés Borja Alcaraz Riaño), July 2025.

    · "Restructuring plans six months on", Actualidad Jurídica Aranzadi, no. 996, May 2023.

    · "Mbappé's renewal and the effectiveness of financial fair play", Cinco Días, May 2022.

    · "Director liability and insolvency proceedings", Actualidad Jurídica Aranzadi (co-author with Carlos Ara), June 2022.

    · Chapter "E-Sports" in Derecho de los Juegos (ed. Enrique Ortega), Thomson Reuters Aranzadi, 2021.

    · "Land Registry issues in insolvency proceedings and productive unit transfers", doctrinal article, 2021-2022.

    · "Hotel business unit acquisition", publication in English, 2020-2021.

    · "The insolvency virus and how to flatten the curve of bankruptcy proceedings", Expansión Jurídico, April 2020.

    · "Did you not know what you were signing, or does what you signed not suit you? The starting point for the limitation period in banking contracts" (co-author with Mónica Láncara), 2018.

    · Article on the CJEU judgment of 20/09/2017 on foreign currency mortgages, Expansión (Comunidad Valenciana), October 2017.

  • Litigation

    • Compensation board and property developer. Claim for construction defects and damages under an urbanisation works contract against a UTE contractor. Amount: €19,000,000.

    • British financial services company. Mortgage enforcement proceedings with opposition incidents. Amount: €9,000,000.

    • Property developer. Action for termination of co-ownership and subsequent auction against another developer. Amount: €8,000,000.

    • LaLiga Football Arbitration Tribunal. Arbitrator on a panel in a sports arbitration between two professional football clubs. Amount: €5,000,000.

    • Property developer. Action for termination of co-ownership against a sports entity. Amount: €3,000,000.

    • Construction company. CIMA arbitration on construction concerning the modernisation of irrigation infrastructure against a public body. Amount: €2,500,000.

    • Insurance group and care home operator. Claim against a developer for breach of a build-to-rent contract. Amount: €2,000,000.


    Insolvency

    • Investment fund. Purchase of a hotel productive unit in insolvency proceedings. Real estate, employment and insolvency due diligence. Amount: €31,200,000.

    • Mexican financial institution. Defence of a creditor in insolvency proceedings involving a group of dental clinics and investment funds. Liability claims against de facto directors. Amount: €23,500,000.

    • International investment fund. Acquisition of a historic building in Barcelona from a company in insolvency proceedings through the enforcement of NPL mortgage loans. Amount: €15,000,000.

    • Healthcare and wellness company. Insolvency filing for a group of companies with a productive unit sale offer and collective redundancy procedure. Coordination of international insolvency proceedings for subsidiaries in other countries. Total debt: €40,000,000.

    • Investment fund. Acquisition bid for a productive unit in insolvency proceedings involving an energy and industrial group. Amount: €7,000,000.

    • Financial institution. Advice to a creditor in the refinancing of an unpaid loan against a debtor in the mining sector facing pre-insolvency. Amount: up to €50,000,000.

    • Real estate company. Defence of a debtor in insolvency proceedings brought by a bank seeking a declaration of breach of the insolvency arrangement. Amount: €1,500,000.

    • Private developer. Defence in the termination of a construction contract and recovery of possession of a luxury single-family home against a construction company in pre-insolvency. Amount: €1,500,000.

Team