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Marcia Santomé
Partner

Lawyer

Marcia Santomé

Partner

Languages
  • Spanish
  • English
Social media

Marcia is partner at CMS Mexico with more than 15 years of experience in project finance and PPP's matters. Her practice is primarily focused on the development of infrastructure projects, closely connected to administrative law, particularly public procurement. As part of her involvement in complex infrastructure initiatives, her work also spans related areas such as energy law, public law, environmental law, and project finance. This broad expertise allows her to advise clients comprehensively on the regulatory, contractual, and financial aspects of infrastructure development, ensuring an integrated approach to each project.

Marcia has advised some of the most relevant stakeholders in the infrastructure sector, both public and private, including federal and local entities, developers, leading construction companies, investors, and financial institutions. She has been involved in some of the firm’s most complex and socially significant projects. Her career is distinguished by her active participation throughout the entire lifecycle of infrastructure projects: from structuring and procurement processes, to negotiating instruments, securing financing, and—unlike many practitioners—providing continuous follow-up during implementation. This comprehensive and client-focused approach has positioned her as a trusted advisor in projects that stand out not only for their complexity but also for their long-lasting social impact.

Her key clients include the Ministry of Infrastructure, Communications and Transportation (SICT), the National Infrastructure Fund (FONADIN), and in the private sector, her clients include major players in the country’s principal infrastructure projects, such as Mota Engil México, Grupo INDI, Grupo ICA among others.

Relevant experience

  • A consortium made up of Mexican and European companies for the structuring and bidding of a waste-to-energy project with solid waste from Mexico City.
  • Mexico City Government on the structuring and implementation of a new legal framework in order to develop a programme for the renovation of 8 transport hubs in Mexico City, through the selection of the investors and the awarding of concessions for the use for profit of public property.
  • Mexico City Government on the structuring and implementation of a new strategy for an existing concession granted by the Mexico City Government, in order to include the development a direct access from Mexico City to the new Mexico City International Airport.
  • Mexico City Government on a PPP project for the closure of the main waste landfill in Mexico City (the largest in Latin America), and recovery and concession of the methane gas to generate electricity for self-supply purposes.
  • Grupo INDI on the granting of a concession of public properties for the design, construction, operation and maintenance of an underground parking lot and additional commercial services.
  • Banco Interacciones on the development of a public private partnership for the generation of electricity from wind power in Agua Prieta, Sonora, to be used for municipal self-supply.

Memberships & Roles

She is an active participant in AbogadasMX and was responsible for the firm's inclusion in the Women's Empowerment Principles (WEPs) in 2022. Additionally, Marcia is part of the Diversity and Inclusion Committee of CMS LatAm with a key role in the recently launched Dione+ initiative.

Awards & Rankings

  • The Legal 500, Latin America, Mexico, Projects and Infrastructure, Next Generation Partner, 2022 - 2026.

Education

  • Escuela Libre de Derecho, Diploma in Energy Law, Mexico City, 2012.
  • Escuela Libre de Derecho, Law Degree, (J.D.), Mexico City, 2011.

Marcia has advised clients on the implementation of various clean energy projects for state and municipal governments. She is well acquainted with the applicable laws and regulations in the energy and environmental sectors, and has ample experience in obtaining the necessary permits and authorisations for the implementation of such projects before the Energy Regulatory Commission (CRE), the Federal Electricity Commission (CFE) and the Federal Aviation Administration (DGAC), among others.

Education

Escuela Libre de Derecho, Mexico City, Law Degree, 2006–2011

Escuela Libre de Derecho, Mexico City, Diploma in Energy Law, 2012

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