Carolina Ariza > Ariza & Marin > MEDELLÍN, Colombia > Lawyer Profile

Ariza & Marin
CALLE 7 SUR #42-70

Work Department

Dispute Resolution, Public Law and Projects




Lawyer, Master’s degree in public law from the University Panthéon-Sorbonne Paris 1, with specialization studies in tax law and civil liability and 12 years of experience in litigation and consulting in public law and civil and state liability. In 2018 she was considered by Dinero magazine as one of the most recognized lawyers in Colombia in the field of conflict resolution. She is an Associate Judge of the Administrative Court of Antioquia and a professor at the Universidad EAFIT.

She is noted for her skill in handling complex negotiations and high impact litigation. She is the concessionaire’s attorney within the concession contract under the Public-Private Partnership scheme of the Antioquia-Bolivar road, in two legal proceedings in which the final layout of the road project will be defined, as well as its financial stability. Represents the interests of various taxpayers in judicial proceedings where the legality of the substantial collections for valorisation purposes is analyzed. She intervenes as a proxy in various judicial and administrative expropriation processes.

She provides legal advice on the execution of various infrastructure contracts such as road concessions and public works, as well as consulting, design and auditing contracts. Since 2011 she is a legal advisor to the contractor (Spanish and Korean companies) in charge of the construction of the largest wastewater treatment plant of its kind in Colombia, which she successfully represented before the Dispute Board achieving a favourable decision of the financial disputes for COP 75,704,419,912 – EU 15,351,199 – USD 13,363,867. In the energy sector, closed a transaction concerning the contract for the construction, assembly, testing and commissioning of 500 kV transmission lines in 81 km (Medellin-San Marcos, Valle del Cauca) and currently she is legal counsel to various energy sector companies.

Her efficiency in closing transactions has allowed her to design and implement legal solutions to resolve issues of great social and economic significance. It is worth mentioning the agreement closed with Banco Colpatria and Acción Fiduciaria, on behalf of 44 buyers, which allowed the completion of a real estate project that could finally be completed and occupied in 2018. She has been empowered in dozens of processes for the effectiveness of the legal guarantee, being in progress today the processes initiated on behalf of two different Horizontal Properties conformed by 478 housing units, and 248 apartments, the latter was evacuated since October 24, 2019, due to risk of collapse.

She defends civil servants and former civil servants and engineering and architecture professionals before the respective disciplinary bodies. In this field, she defended the engineers linked to the CDO group, on the occasion of the partial collapse and implosion of one of its buildings and the evacuation of three others. She successfully defended the former Secretary of Security of the municipality of Medellín and is currently defending the former Secretary General (e) of the Medellín Metro, both of whom are being investigated by the Medellín Prosecutor’s office.


English, french and spanish


Lawyer degree: Eafit University, 2006
Master degree in public law: University Panthéon-Sorbonne Paris 1, 2007
Specialization studies in tax law: UPB University, 2011
Specialization studies in civil liability: Eafit University, 2018

Lawyer Rankings

Colombia > Public law

Lawyers at Ariza & Marin are commended for their ‘great experience, technical knowledge and service attitude’. The team’s practice spans government contracting, expropriation, state liability, class actions and disciplinary and fiscal actions, where it acts for an array of domestic and multinational companies. Noted for her ‘willingness to understand customer needs‘, department head Carolina Ariza advises on complex negotiations and litigation, including judicial and arbitral proceedings. Associate Miguel Lozano has a focus on public and procedural law.

Colombia > City focus > Medellín

The increasingly prominent Ariza & Marin stands out for its ‘extensive knowledge of administrative law‘; other firm sweet spots include include projects and disputes — importantly, the firm is ranked nationally for all three areas. Additionally, the group was earmarked as a firm to watch in the insurance area for 2023, following the launch of a new insurance practice in February 2021, which is led by associate Luis Felipe Estrada. Key senior names in the ‘professional and expert group‘ include Carolina Ariza, who spearheads the public law department and recently represented Caja de Compensación Familiar (Comfama) in several legal claims brought by members of a community living in the Ancón Norte sector concerning geological failures caused by hydraulic and soil problems that destroyed their homes. Camilo Marín co-leads the dispute resolution and projects teams, together with Ariza, and is noted for his strong skill sets in infrastructure projects and arbitration. Among Marín’s recent matters, he is advising three of the four contractors responsible for the replacement of all aqueducts containing asbestos with a new material, under a complex government programme. Key support is provided by senior associate Nicolás López Ochoa, who specialises in infrastructure projects and conflict resolution.

Colombia > Projects

The projects team at Ariza & Marin is ‘very proactive and very knowledgeable‘, according to sources. A popular choice to represent domestic and multinational construction companies on project development and dispute resolution, the team is primarily recognised for its strength in road-related matters. Other areas of experience include power projects, water storage, sanitation and social infrastructure. Camilo Marín is noted for his broad contentious and non-contentious expertise in the infrastructure sphere; he co-heads the department alongside Carolina Ariza, who specialises in public law.

Colombia > Dispute resolution > Litigation

Medellín-based Ariza & Marin leverages its footholds in the projects and public law spheres to specialise in advising on infrastructure-related litigation. Other sectoral strengths include real estate and energy. Sources highlight its lawyers’ ‘high level of response, in terms of timeliness and depth‘, with Carolina Ariza  best known for her expertise in public law and civil liability, while Camilo Marin   is recommended for his track record in arbitral matters. In July 2021, the team was boosted by the arrival of senior associate and litigation co-ordinator Tomás Cuartas Orrego , who joined from Villegas & Villegas Abogados.