Martin Gualino helps lenders, arrangers, investors, buyers, sponsors, borrowers and sellers in connection with a diverse range of financing, energy and infrastructure transactions and projects, both domestic and cross-border. His experience includes tax-equity investments, project debt financing transactions, commercial secured and unsecured term loans and revolving credit facilities, future flow securitizations and warehouse facilities.

Martin’s international practice focuses on Latin America and the Caribbean. He is qualified in both civil and common law, and has worked on transactions involving several countries across the region, including Argentina, Brazil, Cayman Islands, Chile, Colombia, Ecuador, Guatemala, Mexico, Panama and Paraguay.

Martin is a native Spanish speaker and has working knowledge of Portuguese. Prior to joining Mayer Brown, Martin spent 5 years practicing in Argentina, including 4 years as associate in the corporate practice of a prominent top law firm in Buenos Aires and, before moving to the firm’s New York office, he spent a year in Mayer Brown’s Chicago office.

Spoken Languages

  • English
  • Portuguese
  • Spanish


  • Represented the investor in several tax-equity investment commitments totalizing approx. US$350 million into solar energy generation and battery storage facilities located in Maine, Hawaii and Arizona, totalizing approx. 142 MW AC and 213 MW AC respectively.
  • Represented the arranger, lender, agent and issuing bank in a US$52.8 million senior secured credit facility secured by a portfolio of residential solar systems in California.
  • Represented the lenders and the administrative and collateral agent, in a US$100 million development credit facility to finance the development and construction of a portfolio of utility-scale solar energy generation and battery storage facilities located across the US.
  • Represented the sponsor in the US$364 million sale of its US based commercial distributed generation business.
  • Represented the arranger and lender in several Colombian peso linked loans for up to US$100 million to trusts created under the laws of Colombia and secured by different portfolios of payroll loans.
  • Represented the arranger in connection with the establishment of a loans program and the initial issuance of loans to a Mexican trust for MXN$4,882 million (approx. US$287 million).
  • Represented the arranger in connection with the establishment of a merchant voucher program and the US$70 million initial issuance of loans through a Cayman Islands vehicle established by an Ecuadorian company.
  • Represented the Mexican borrower in the sustainability linked refinancing of a US$500 million loan facility, consisting of a US$200 million 4-year term loan facility and US$300 million 3-year revolving credit facility.
  • Represented an Illinois not-for-profit corporation, as lender, in a pro bono matter in a working capital unsecured revolving credit facility to another Illinois not-for-profit corporation which purpose is to provide low cost shared back office services to small businesses primarily located or operating in high density urban areas inhabited mainly by low-income communities of color or other disadvantaged groups.


Universidad Nacional de Rosario, JD

Universidad Austral, Master in Business Law with Honors

University of Michigan Law School, LLM


  • City of Buenos Aires, Argentina
  • New York