José Armando Casillas Obregón

Diego Ostos is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Mergers and Acquisitions Law and Project Finance and Development Practice. Diego, who practices law in Mexico City, Mexico, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Diego is held by other top lawyers in the same geographic and legal practice area.

Javier Uhthoff is Senior Partner of Uhthoff in Mexico, where he heads the Patent Department. He has an important experience in the representation of numerous clients, mainly in advising multinational companies, protecting different types of innovations. He has advised a wide variety of industries in Europe, North America, Asia and Latin America. Javier has established a significant international reputation for Intellectual Property. He began his practice at Uhthoff in 1984 and was appointed P...

Law degree earned at Universidad Iberoamericana in 2013. Specialist in Procedural, Administrative, and Fiscal Law earned at Universidad Iberoamericana in 2015. Master in Administrative Law earned at Universidad Panamericana in 2013. Member of the Mexican Association for the Protection of Intellectual Property (AMPPI) and the International Trademark Association (INTA). Attends International Trademark Association (INTA), European Communities Trade Mark Association (ECTA), Association Internatio...

Mariana is the Managing Partner for our Mexico City Office. Mariana has almost 20 years of legal experience, and is admitted to law practice both in Mexico and in the State of New York, USA. Her practice is primarily focused on two fronts. The first is advising national and multinational companies in domestic and international tax issues (inbound and outbound), including mergers and acquisitions, corporate restructurings, leveraged financing and project financing, tax aspects of compliance an...

PRACTICE AREAS Contracts, Corporate, Mergers & Acquisitions, Real Estate, Foreign Investments, Corporations and Franchises. ASSOCIATIONS AND PUBLICATIONS Lex Mundi. International Franchise Association (IFA). Mexican-Brazilian Chamber (CAMEBRA). World Services Group; Currently President of the Latin-American Council. The University of Chicago Alumni Club of Mexico, assistant secretary, honorary legal advisor. Participated in local and international publications in his areas of concentratio...

PRACTICE AREAS Corporate, mergers and acquisitions, cross-border transactions, aeronautics, private international law, business entities, foreign investment, immigration, real estate, strategic alliances. ASSOCIATIONS International Bar Association (IBA). Barra Mexicana Colegio de Abogados, A.C., Nuevo León; former board member, and active coordinator of the commercial and civil law practice. Coparmex (Querétaro); Board of directors. Cámara Franco Mexicana de Comercio e In...

Hector’s practice focuses on advising multinational clients on the labour aspects of high-end M&A deals and corporate restructurings, and high stakes labour disputes. His reputation as one of the absolute leaders for employment law in Mexico has led to him retaining some of the leading names from Mexico’s insurance, financial services, retailing and consumer goods sectors as long-term clients. His clients include leading national and multinational companies and financial insti...

Arturo Pérez-Estrada focuses his practice on corporate, mergers and acquisitions, private equity investments, financial regulation (Fintech), corporate governance, regulatory matters, and compliance affecting national and foreign clients of various industries.Arturo provides legal advice to various clients in matters related to venture capital, financial regulation, and shareholders agreements. He has obtained various authorizations in financial matters for nonbank financial intermedia...

Francisco has been practicing for more than 13 years and specializes in employment litigation, representing management in high profile cases filed by top executives, as well as representing clients in employer/union conflicts. He also specializes in consultancy on benefits and employment aspects of merger and acquisition deals. He is involved in many of the largest impact cases at S+S and is relied upon and respected by his clients, many of which are multi-national companies.

María Ordorica is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. María, who practices law in Mexico City, Mexico, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which María is held by other top lawyers in the same geographic and legal practice area.