
With cross-border capabilities and involvement in emerging areas such as green-washing, ONTIER's dispute resolution team continues to attract new clients from a range of sectors including healthcare, energy, and financial services. The team has extensive experience handling civil and commercial disputes related to joint venture disputes, agreement infringements, and contractual disputes. Executive chairman Pedro Rodero Rodríguez and managing partner Cristina Camarero Espinosa co-head the department and share an aptitude for litigation and arbitration matters arising from the energy and natural resources, hotels and leisure, and food and drink industries. The group also benefits from the expertise of arbitration authority Mercedes Romero Iglesias and litigation specialist José Luis Cabello Contreras.
Testimonials
Collated independently by Legal 500 research team.
‘Ontier is very flexible and dynamic. It has extensive experience in civil litigation, with a very solid team and extensive technical capabilities.’
‘Jose Luis Cabello Contreras is an excellent lawyer, very flexible and dynamic, following the line of the firm. He studies and analyses the cases in great detail and professionally, with an excellent ability to understand and assimilate technical issues. He is very committed to the cases entrusted to him, a perfectionist, and meticulous.’
‘Cristina Camarero's great team management and great practical and legal knowledge of procedural matters stands out. Her empathy and practical vision make her an excellent professional.’
‘The dispute resolution team is highly specialised and has an excellent level of technical knowledge combined with unbeatable customer service. Without a doubt, the dispute resolution team is among the best in the Spanish market.’
‘Their technical capacity, ability to work in a team, and ability to serve clients by understanding their concerns differentiates the practice.’
‘Ontier's litigation and arbitration team is first class. They stand out for the dedication and direct involvement of the partner in charge and senior lawyers. They show maximum availability to the client.’
‘Mercedes Romero is a top-level litigator with a great strategic vision, both in terms of the merits and procedural strategy. She has demonstrated that she knows and masters international arbitration to perfection. She is highly involved and has a thorough knowledge of the case. She is accessible, clear, and direct in her analysis of the case and in her assessment of the chances of success.’
‘Ontier's litigation lawyers, specifically Miguel Fernandez Benavides and Rafael Santacruz, stand out and differentiate themselves from their competitors by a combination of technical skills, experience, client focus, and personal qualities that allow them to provide exceptional legal service.’
Key clients
- Iberdrola
- Universalpay Entidad de Pago
- Dentix
- Galp
- Vodafone España, S.A.U.
- CAF
- Banco sabadell
- Yelmo Cines
- OHLA
- Securitas Direct
Work highlights
- Advised Iberdrola in a dispute against REPSOL on the grounds that it is engaging in green-washing.
- Advised Universalpay Entidad de Pago in a dispute against a Spanish bank in relation to the infringement of one of the agreements entered into within a joint venture alliance pursuant to a change of control.
- Advised Dentix in a claim over the fulfillment of an Investment and Shareholders Agreement.
Lawyers

Practice head
The lawyer(s) leading their teams.
Pedro Rodero Rodríguez, Cristina Camarero Espinosa