Mr Carlos Aiza > Creel, García-Cuéllar, Aiza y Enríquez, S.C. > Mexico City, Mexico > Lawyer Profile

Creel, García-Cuéllar, Aiza y Enríquez, S.C.

Work Department

Banking and Finance, Capital Markets.


Carlos Aiza is a senior partner of Creel, García-Cuéllar, Aiza y Enríquez in Mexico City, where he heads the Financial Services practice group and is a member of the Executive committee.

Mr. Aiza practices in the areas of banking and securities law with an emphasis in capital markets, corporate and structured finance, real estate and project finance, asset securitization, derivatives and workouts.

Mr. Aiza has worked on the most innovative capital markets, finance and asset securitization transactions in Mexican history, including the first and second-ever Special Purpose Acquisition Company (SPAC) IPOs, the first, second and third-ever Master Limited Partnership (FIBRA E) IPOs, the first, second and third-ever international CERPI listings, the three largest Real Estate Investments Trust (FIBRA) IPOs, the first-ever public listing of equity development certificates known as CKDs, the first-ever Mexican cross-border whole loan, domestic mortgage-backed and domestic auto loan securitizations, the first asset-backed commercial paper conduit, and two of the largest Mexican workouts in recent history.

In 2018, the Financial Times recognized Mr. Aiza as one of the “10 Most Innovative Lawyers in North America”, the only Mexican lawyer to ever be so recognized. Best Lawyers named Mr. Aiza “Lawyer of the Year” in Mexico for Structured Finance in 2018, 2014 and 2010, for Capital Markets in 2015 and for Banking and Finance in 2012. In 2014, Lawyer Monthly Magazine recognized him as one of the “World’s 100 Leading Capital Markets Lawyers” in its Leading Lawyer 100-Capital Markets, also the only Mexican lawyer to have received such distinction. In 2010, Latin Business Chronicle, published by Latin Trade Group, named Mr. Aiza one of the Top 50 Lawyers in Latin America.


Foreign Associate in the International Banking Group in the New York office of Coudert Brothers during 1993 and 1994, he joined the firm in 1995 and became partner in 1998.


His native language is Spanish and he is fluent in English.


Mr. Aiza is a member of the International Bar Association (IBA).


Mr. Aiza obtained his law degree (JD) from the Universidad Iberoamericana School of Law in 1991, and his Masters in Law from Georgetown University Law Center in 1993.

Lawyer Rankings

Mexico > Capital markets

(Leading individuals)

Carlos AizaCreel, García-Cuéllar, Aiza y Enríquez, S.C.

A ‘pioneer in Mexico‘ where it has stood at the forefront of capital markets practice for over 20 years, Creel, García-Cuéllar, Aiza y Enríquez, S.C. receives particular praise for its 35-lawyer team. Acting for issuers, sponsors, structuring agents, underwriters, pension funds (AFORES), investment funds, rating agencies, arrangers, placement agents and financial guarantors, among others, it has proved an unequalled performer in first-of-its-kind transactions such as CKD listings and the initial operations for mortgage REITs, master limited partnership Fibra-Es, and CERPIs. An ‘excellent leader‘, high-profile group head and senior partner Carlos Aiza remains one of the most sought-after specialists in the capital markets sector; working in conjunction with younger partner Mercedes Haddad, he co-led advice to Terrafina on its $500m Rule 144A/Reg S offering. Haddad also led on the MXN$255.2m reopening of an initial CKD trust issuance on behalf of Casa de Bolsa Santander. Noted for his creativity, Carlos Zamarrón led advice to Vista Oil & Gas on its $100.9m re-IPO on the New York Stock Exchange; while Rodrigo Castelazo led on the $400m Minera y Metalúrgica del Boleo matter (see below). Additional partner-level involvement is provided by name-partner Jean Michel Enríquez and Eduardo Flores (who co-lead advice to Banco Santander Spain on its $1.49bn buy-back offer for outstanding ‘B’ shares in Banco Santander México), along with Jorge Montaño, who handles M&A, private equity and corporate and commercial matters as well as capital markets work.

Mexico > Banking and finance

(Leading individuals)

Carlos Aiza – Creel, García-Cuéllar, Aiza y Enríquez, S.C.

One of the market’s undisputed leaders in the banking and finance realm, Creel, García-Cuéllar, Aiza y Enríquez, S.C. houses a 33-strong practice with a ‘unique level of specialization’, always willing to ‘go the extra mile’. With rainmaker Carlos Aiza at the helm, the well-rounded team advises an impressive mix of international and domestic lenders, borrowers and financing entities in connection with a broad array of transactions – frequently involving innovative structures – including: cross-border, local single-bank and syndicated loan facilities; acquisition, structured and maritime financings; secured and unsecured financings; and high-level restructurings, project finance and derivatives. Key practitioners include partners Giovanni Ramirez, Pedro Velasco and Emilio Aarun, who are praised by clients for being ‘very knowledgeable and thoughtful’; Rodrigo Castelazo, who has recently participated in the first four unsecured real estate revolving financings in Mexico; Mercedes Haddad; counsel Victor Gallegos; and ‘outstanding’ senior associate Alejandro Isaac.

Mexico > Bankruptcy and restructuring

Creel, García-Cuéllar, Aiza y Enríquez, S.C. has an active presence in the restructuring area, providing advice – particularly on high-end matters – regarding all non-litigious issues related to corporate restructurings, financial restructurings, and bankruptcy and insolvency proceedings, including those involving complex financial situations and banking and finance structures. It also advises creditors and debtors on complex bankruptcy and out-of-bankruptcy restructuring transactions and regulatory issues in non-judicial aspects of restructurings and workouts. The practice is led by the distinguished Carlos Aiza, who is supported by a well-rounded group of finance and capital markets experts, including Pedro Velasco, Rodrigo Castelazo and Emilio Aarun.