LAWYER PROFILE
Mercedes Romero

Mercedes Romero

Europe 2026

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Chambers ranking badge

Ranked in 2 practice areas

About

Provided by ONTIER

Europe

Practice Areas

Mercedes specialises in arbitration and litigation matters.

She has over 15 years’ experience advising clients across a range of sectors including construction, engineering, energy, financial, telecom and sports.

Mercedes has taken part in complex judicial and arbitral proceedings, both nationally and internationally, advising on all types of contractual disputes.

Mercedes also advises on insolvency proceedings and enforcement proceedings of foreign judgments and awards, as well as other issues relating to private international law. In addition, she sits as an arbitrator.

Relevant experience includes:

Acting for one of the largest Spanish construction companies in an ICC arbitration proceeding with seat in Houston and related to dispute around an ethanol plant. The amount involved was over 400MUSD.

Acting for one the most relevant football teams in Spain related to a complex shareholders litigation dispute, involving over 100MEUR.

Acting for one of the English largest online gaming companies in a complex unfair competition claim before the Spanish Courts.

Professional Memberships

Professional memberships: In 2020 she was elected as a member of the Board of Directors of the Spanish Arbitration Club (“Club Español del Arbitraje”) and has been a member of the Spanish Bar Association since 2005

Chambers Review

Provided by Chambers

Chambers European Guide

Arbitration - Spain

Band 3
Band 3

Individual Editorial

Mercedes Romero is praised by clients for her activity in the sphere of international arbitration. Representing international companies in the construction, energy and investment sectors, she is active in ICC arbitration proceedings and arbitration award enforcements.

Litigation: Elite - Spain

Band 5
Band 5

Individual Editorial

Mercedes Romero boasts extensive expertise representing clients in commercial litigation. Her clients hail from a range of different sectors including construction, energy and real estate.

Strengths

Provided by Chambers

  • She has great technical capabilities and a great human capacity with clients. She really understands their needs.

    ArbitrationChambers European Guide
  • Mercedes Romero is an exceptional team leader.

    ArbitrationChambers European Guide
  • Mercedes Romero is a great and highly prepared lawyer.

    ArbitrationChambers European Guide
  • She displays a sharp grasp of the subject matter.

    ArbitrationChambers European Guide
  • Mercedes is very hard-working and very valuable.

    ArbitrationChambers European Guide
  • Mercedes has given us peace of mind, knowing that we are heading in the right direction with her by our side.

    Litigation: EliteChambers European Guide

Ranked Individuals at ONTIER (22)

Italy

Spain

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