Mariana Herrero S

Practice Areas

Environment and ESG

Career

Mariana has practiced environmental law all of her professional career, started as a law student in 1998, and never looked back.

She has in-depth experience in all aspects of environmental law, from wildlife to waste regulation, and approaches environmental issues from different perspectives, often in collaboration with the Firm’s Projects, Litigation, and M&A practice groups. She is praised by clients and peers for her ability to bring outstanding environmental expertise to the Firm’s transactional projects, regulatory practice, and strategic litigation capabilities.

Supported by a strong team of associates, she has represented Mexican and international companies, mainly from the energy, retail, manufacturing, financial services and infrastructure industries.

She has a particular expertise in advising intense water consuming industries on the preservation of water rights and designing strategies to ensure compliance with the complex wastewater regulations in Mexico.

As the first female partner of the Firm, Mariana is conscious of being a role model for other young female lawyers at the Firm and elsewhere. She has therefore actively promoted diversity and inclusion best practices at the Firm and coordinated the Diversity & Inclusion Committee from its creation. Mariana is the first female member of the Executive Committee at any leading firm in Mexico and member of the Diversity, Equity & Inclusion and the Pro Bono Committees in Galicia.

Mariana is also a founding member of the Board of Abogadas MX, a non-profit organization that aims to promote more female lawyers in leadership positions in Mexico.

Mariana studied Law at the Universidad Panamericana with a specialization in Administrative Law. She holds an MSc in Environmental Sustainability from the Centre for the Study of Environmental Change and Sustainability of the University of Edinburgh, Scotland.

She is recognized as expert by Chambers Latin America in the Environmental practice. She is considered by The Legal 500 2023 Latin American Guide and Latin Lawyer as a leading lawyer in complex environmental and ESG matters in the Mexican legal ecosystem..

Mariana is member of the Executive and Diversity, Equity & Inclusion committees at the firm.