Guillermo Parra

Juan Carlos is the current managing partner of S+S and is the head of the labor and employment practice group. He has 34 years of professional experience handling both individual and collective labor matters. He is recognized as a leading lawyer at a national and international level in his area of expertise due to his significant role in the resolution of union disputes in the mining and automotive industry in Mexico. He provides advice to multinational companies in the retail, hotel and oil ...

Roberto Cannizzo Consiglio is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Mergers and Acquisitions Law, Insurance Law, Project Finance and Development Practice and Real Estate Law. Roberto, who practices law in Mexico City, Mexico, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Roberto is held by other top lawyers in the same geographic and legal practice area.

Carlos A. Ochoa Valenzuela is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law, Energy Law and Project Finance and Development Practice. Carlos A., who practices law in Mexico City, Mexico, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carlos A. is held by other top lawyers in the same geographic and legal practice area.

Tania Terrazas Arnaldo is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Tania, who practices law in Mexico City, Mexico, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tania is held by other top lawyers in the same geographic and legal practice area.

With more than 27 years of professional experience, Jorge has advised national and international companies in the automotive, financial, educational, technological and entertainment sectors, among others. His practice is focused on M&A transactions, financing and TMT. He is the Chairman of Santamarina + Steta. Also, he is a member of the Board of Directors of The World Law Group.

Diego Ruiz Durán is a criminal lawyer by the Escuela Libre de Derecho, he also has a Master's Degree in Criminology and Criminal Justice from Oxford University. In 2001 he began his professional career under the tutelage of the renowned criminal lawyer José Luis Nassar, who years later encouraged him to open his own firm, Bufete Ruiz Durán. He has been a professor at the Escuela Libre de Derecho. He has also studied at the Universities of Cambridge, Harvard and Massachuse...

PRACTICE AREAS Economic competition and corporate. ASSOCIATIONS AND PUBLICATIONS International Bar Association (IBA); Antitrust Committee. American Bar Association (ABA). “Economic Competition: Theory and Practice” Editorial Porrúa (2004); one of the few Mexican books on the subject. ACADEMIC AND PROFESSIONAL EXPERIENCE Lecturer on antitrust law at Universidad Panamericana and Universidad Anáhuac. Advises national and international clients on all areas of competition...

Law degree summa cum laude Escuela Libre de Derecho; best thesis dissertation award 2003-2004; LL.M. 2006 Columbia University School of Law, Parker School Award for Achievement in International and Comparative Law. Participated on several defences by the leading telephone and mobile companies since 1999. Since 2004 he has been an active attorney participating in complex dispute resolution in the field, including regulatory, antitrust, M&A, constitutional, administrative and commercial mat...

Eduardo Leal Sánchez is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Eduardo, who practices law in Santiago de Querétaro, Mexico, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Eduardo is held by other top lawyers in the same geographic and legal practice area.

Luis Rubio Barnetche is a top attorney recognized by Best Lawyers in the practice area(s) of Communications Law and Corporate and Mergers and Acquisitions Law. Luis, who practices law in Mexico City, Mexico, has been recognized since 2008. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Luis is held by other top lawyers in the same geographic and legal practice area.