Santamarina y Steta S.C.

Santamarina + Steta | WLG Profile

Who We Are

Santamarina + Steta is one of Mexico’s leading full-service law firms, with over 75 years of experience advising national and international companies, and individuals across all areas of Mexican law.

Our hallmark is our ability to understand each client’s challenges from both a local and global perspective, turning legal complexity into strategic clarity. We combine deep legal expertise, business insight, and technology to design solutions that drive growth, protect value, and create long-term impact.

We are recognized for our collaborative culture, client-centric approach, and capacity to navigate the intersection between law, business, and innovation.


Our Differentiator

At Santamarina + Steta, we stand out for combining the depth and prestige of a mature firm with the agility and vision of a modern legal business. Our institutional structure, led by a professional management team, ensures financial discipline, client-centric innovation, and seamless collaboration across practices. We are redefining what it means to be a full-service firm in Mexico by delivering integrated, technology-driven solutions that anticipate the needs of our clients and the industries that shape the country’s development. With a national footprint and a forward-looking mindset, we partner with our clients to navigate complexity, unlock opportunities, and build long-term value.


Our Team

We are a multidisciplinary team of highly qualified partners, counsels, and associates working seamlessly across 40 practice areas and multiple sectors. Our shared purpose is to deliver exceptional service through collaboration, precision, and insight.


Supported by:

  • +75 years of experience

  • 40 practice areas

  • 24 partners

  • 5 counsels

  • 65 lawyers

  • 37 law clerks


Our Clients

We advise a diverse portfolio of clients, including multinational groups, financial institutions, and high-growth companies, helping them align their operations in Mexico with their global business strategy.

Whether in complex transactions, strategic investments, or high-stakes disputes, our clients rely on us for efficient, business-driven, and globally aligned legal solutions.

Recent Firm News & Legal Updates

Poland, Mexico
November 8, 2025

Magda Kowalczyk Practice Areas:  Corporate, M&A, Commercial Sołtysiński Kawecki & Szlęzak  (Poland) → Interned at  Santamarina y Steta  (Mexico) Connect on LinkedIn Tell us about stand-out moments from your WLG | exchange.  ...
July 28, 2025

Zhong Lun (China) and the Beijing Lawyers Association invited José Ramón Ayala of Santamarina y Steta (Mexico) to speak at the "Forum on Foreign-Related Legal Services Under the Belt and Road Cooperation," in Beijing in June. After speaking about "Investment opportunities in Mexico and challenges for Chinese...
Member Firm News Mexico
January 28, 2025

According to the Mexican legal framework, companies are not obliged to introduce a whistleblowing system but is instead left to their discretion as part of the implementation of an adequate “due control” or “organization, management and risk prevention model” (in the criminal sphere) and an “integrity policy” (in the administrative sphere).
Member Firm News
November 21, 2024

Santamarina y Steta (Mexico) celebrated a decade of success at its Querétaro office with a special event featuring the Governor of Querétaro and distinguished guests. The occasion highlighted the firm's contributions to the region's growth and investment opportunities.
Wlg | Impact Mexico
October 18, 2024

Santamarina + Steta launched two major recycling campaigns in 2024: Reciclatón 2024 (June 17 - July 5) collected 3 tons of e-waste, recycling plastics, metals, and batteries in partnership with E-waste services. Recolección Verde (July 30 - August 21) gathered 15 kg of donated and recycled clothing, repurposing it into products like...

Firm Offices in Member Jurisdiction

North America


Mexico Mexico City, Monterrey, Querétaro

Firm Offices in Other Jurisdictions

*Indicates affiliated firm

All Firm Contacts
Committees & Programs
Business Development Committee
Business Development Committee
César G. Cruz Ayala
César G. Cruz Ayala Copied!
+528181336002 ccruz@s-s.mx
Jorge León-Orantes
Jorge León-Orantes Copied!
+5255527954 jleon@s-s.mx
Corporate Social Responsibility Forum
Corporate Social Responsibility Forum
Abel Leal Harsanyi
Abel Leal Harsanyi Copied!
+8181336036 abel.leal@s-s.mx
César G. Cruz Ayala
César G. Cruz Ayala Copied!
+528181336002 ccruz@s-s.mx
Claudia Rodriguez
Claudia Rodriguez Copied!
+5255540278 crodriguez@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Sergio Chagoya
Sergio Chagoya Copied!
+5255527954 schagoya@s-s.mx
Key Contact Partners Forum
Key Contact Partners Forum
César G. Cruz Ayala
César G. Cruz Ayala Copied!
+528181336002 ccruz@s-s.mx
Jorge León-Orantes
Jorge León-Orantes Copied!
+5255527954 jleon@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Women of WLG (WOW)
Women of WLG (WOW)
Claudia Rodriguez
Claudia Rodriguez Copied!
+5255540278 crodriguez@s-s.mx
Emily  Manzewitsch
Emily Manzewitsch Copied!
+5244129002 emily.manzewitsch@s-s.mx
Lisa Veronica Carral Flores
Lisa Veronica Carral Flores Copied!
+5281813360 lcarral@s-s.mx
Marcela de la Peña Ramos Copied!
+5552795477 mdelapena@s-s.mx
Paola Morales
Paola Morales Copied!
+525552795508 pmorales@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Women of WLG (WOW) V2
Women of WLG (WOW) V2
Claudia Rodriguez
Claudia Rodriguez Copied!
+5255540278 crodriguez@s-s.mx
Lisa Veronica Carral Flores
Lisa Veronica Carral Flores Copied!
+5281813360 lcarral@s-s.mx
Paola Morales
Paola Morales Copied!
+525552795508 pmorales@s-s.mx
Young Lawyers Forum
Young Lawyers Forum
Abel Leal Harsanyi
Abel Leal Harsanyi Copied!
+8181336036 abel.leal@s-s.mx
Antonio Lopez Copied!
+5569691491 alopez@s-s.mx
Carlos Brehm Copied!
+8181336021 cbrehm@s-s.mx
Emily  Manzewitsch
Emily Manzewitsch Copied!
+5244129002 emily.manzewitsch@s-s.mx
Ernesto de la Puente Téllez
Ernesto de la Puente Téllez Copied!
+5533326968 edelapuente@s-s.mx
Guillermo A. Moreno M.
Guillermo A. Moreno M. Copied!
+524422900292 gmoreno@s-s.mx
Karina Robledo Y. Copied!
+5255527954 krobledo@s-s.mx
Raziel Celis
Raziel Celis Copied!
+5548554416 dcelis@s-s.mx
Ricardo Orea
Ricardo Orea Copied!
+5255527954 rorea@s-s.mx
Samuel Flores Copied!
sflores@s-s.mx
Sergio Chagoya
Sergio Chagoya Copied!
+5255527954 schagoya@s-s.mx
Practice & Industry Groups
Antitrust, Competition & Foreign Direct Investment
Antitrust, Competition & Foreign Direct Investment
Daniel Sosa Copied!
dsosa@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Gonzalez Copied!
+5552795484 ricardo.gonzalez@s-s.mx
Vicente Grau Copied!
+525552795466 vgrau@s-s.mx
Banking & Finance
Banking & Finance
Antonio Lopez Copied!
+5569691491 alopez@s-s.mx
Diego Ostos
Diego Ostos Copied!
+525552795459 dostos@s-s.mx
Esteban Soto Loecken Copied!
+5255527954 esteban.soto@s-s.mx
Guillermo A. Moreno M.
Guillermo A. Moreno M. Copied!
+524422900292 gmoreno@s-s.mx
Heriberto Garza C.
Heriberto Garza C. Copied!
+5281813360 hgarza@s-s.mx
Jorge León-Orantes
Jorge León-Orantes Copied!
+5255527954 jleon@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Pablo Ortiz Monasterio O'Dogherty Copied!
+5255794687 portiz@s-s.mx
Raziel Celis
Raziel Celis Copied!
+5548554416 dcelis@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Orea
Ricardo Orea Copied!
+5255527954 rorea@s-s.mx
Roberto Fernández del Valle
Roberto Fernández del Valle Copied!
+5255527954 rfernandez@s-s.mx
Sergio Chagoya
Sergio Chagoya Copied!
+5255527954 schagoya@s-s.mx
Compliance & Investigations
Compliance & Investigations
Abel Leal Harsanyi
Abel Leal Harsanyi Copied!
+8181336036 abel.leal@s-s.mx
Carlos Brehm Copied!
+8181336021 cbrehm@s-s.mx
Daniel Sosa Copied!
dsosa@s-s.mx
Guillermo A. Moreno M.
Guillermo A. Moreno M. Copied!
+524422900292 gmoreno@s-s.mx
Heriberto Garza C.
Heriberto Garza C. Copied!
+5281813360 hgarza@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Paola Morales
Paola Morales Copied!
+525552795508 pmorales@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Gonzalez Copied!
+5552795484 ricardo.gonzalez@s-s.mx
Vicente Grau Copied!
+525552795466 vgrau@s-s.mx
Corporate Transactions
Corporate Transactions
Abel Leal Harsanyi
Abel Leal Harsanyi Copied!
+8181336036 abel.leal@s-s.mx
Alejandro Luna Arena Copied!
+5215513846 aluna@s-s.mx
Antonio Lopez Copied!
+5569691491 alopez@s-s.mx
César G. Cruz Ayala
César G. Cruz Ayala Copied!
+528181336002 ccruz@s-s.mx
Daniel Sosa Copied!
dsosa@s-s.mx
Diego Ostos
Diego Ostos Copied!
+525552795459 dostos@s-s.mx
Esteban Soto Loecken Copied!
+5255527954 esteban.soto@s-s.mx
Guillermo A. Moreno M.
Guillermo A. Moreno M. Copied!
+524422900292 gmoreno@s-s.mx
Jorge León-Orantes
Jorge León-Orantes Copied!
+5255527954 jleon@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Lisa Veronica Carral Flores
Lisa Veronica Carral Flores Copied!
+5281813360 lcarral@s-s.mx
Pablo Ortiz Monasterio O'Dogherty Copied!
+5255794687 portiz@s-s.mx
Raziel Celis
Raziel Celis Copied!
+5548554416 dcelis@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Orea
Ricardo Orea Copied!
+5255527954 rorea@s-s.mx
Sebastian Salazar Palafox Copied!
ssalazar@s-s.mx
Dispute Resolution
Dispute Resolution
Carlos Brehm Copied!
+8181336021 cbrehm@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Roberto Fernández del Valle
Roberto Fernández del Valle Copied!
+5255527954 rfernandez@s-s.mx
Energy & Infrastructure
Energy & Infrastructure
Claudia Rodriguez
Claudia Rodriguez Copied!
+5255540278 crodriguez@s-s.mx
Daniel Sosa Copied!
dsosa@s-s.mx
Juan Carlos Machorro Copied!
+5552795463 jmachorro@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Environmental, Social & Governance (ESG)
Environmental, Social & Governance (ESG)
Abel Leal Harsanyi
Abel Leal Harsanyi Copied!
+8181336036 abel.leal@s-s.mx
Claudia Rodriguez
Claudia Rodriguez Copied!
+5255540278 crodriguez@s-s.mx
Daniel Sosa Copied!
dsosa@s-s.mx
Heriberto Garza C.
Heriberto Garza C. Copied!
+5281813360 hgarza@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Intellectual Property
Intellectual Property
Daniel Legaspi
Daniel Legaspi Copied!
+5255527954 dlegaspi@s-s.mx
Jorge León-Orantes
Jorge León-Orantes Copied!
+5255527954 jleon@s-s.mx
Jose Pablo Perez Zea Copied!
+5255527954 jperez@s-s.mx
Paola Morales
Paola Morales Copied!
+525552795508 pmorales@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Labor & Employment
Labor & Employment
Emily  Manzewitsch
Emily Manzewitsch Copied!
+5244129002 emily.manzewitsch@s-s.mx
Ernesto de la Puente Téllez
Ernesto de la Puente Téllez Copied!
+5533326968 edelapuente@s-s.mx
Francisco Udave Trevino
Francisco Udave Trevino Copied!
+5255527954 fudave@s-s.mx
Juan de la Vega
Juan de la Vega Copied!
jdelavega@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Samuel Flores Copied!
sflores@s-s.mx
Privacy & Data Protection
Privacy & Data Protection
Jorge León-Orantes
Jorge León-Orantes Copied!
+5255527954 jleon@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Paola Morales
Paola Morales Copied!
+525552795508 pmorales@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Gonzalez Copied!
+5552795484 ricardo.gonzalez@s-s.mx
Real Estate & Construction
Real Estate & Construction
Abel Leal Harsanyi
Abel Leal Harsanyi Copied!
+8181336036 abel.leal@s-s.mx
Claudia Rodriguez
Claudia Rodriguez Copied!
+5255540278 crodriguez@s-s.mx
Daniel Sosa Copied!
dsosa@s-s.mx
Heriberto Garza C.
Heriberto Garza C. Copied!
+5281813360 hgarza@s-s.mx
Luis Carlos Gomez
Luis Carlos Gomez Copied!
+5281813360 lcgomez@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Gonzalez Copied!
+5552795484 ricardo.gonzalez@s-s.mx
Roberto Fernández del Valle
Roberto Fernández del Valle Copied!
+5255527954 rfernandez@s-s.mx
Sebastian Salazar Palafox Copied!
ssalazar@s-s.mx
Vicente Grau Copied!
+525552795466 vgrau@s-s.mx
Restructuring & Insolvency Resolution
Restructuring & Insolvency Resolution
Carlos Brehm Copied!
+8181336021 cbrehm@s-s.mx
César G. Cruz Ayala
César G. Cruz Ayala Copied!
+528181336002 ccruz@s-s.mx
Esteban Soto Loecken Copied!
+5255527954 esteban.soto@s-s.mx
Pablo Ortiz Monasterio O'Dogherty Copied!
+5255794687 portiz@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Orea
Ricardo Orea Copied!
+5255527954 rorea@s-s.mx
Roberto Fernández del Valle
Roberto Fernández del Valle Copied!
+5255527954 rfernandez@s-s.mx
Tax & Private Wealth
Tax & Private Wealth
Claudia Rodriguez
Claudia Rodriguez Copied!
+5255540278 crodriguez@s-s.mx
Karina Robledo Y. Copied!
+5255527954 krobledo@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Technology
Technology
Daniel Legaspi
Daniel Legaspi Copied!
+5255527954 dlegaspi@s-s.mx
Ernesto de la Puente Téllez
Ernesto de la Puente Téllez Copied!
+5533326968 edelapuente@s-s.mx
Guillermo A. Moreno M.
Guillermo A. Moreno M. Copied!
+524422900292 gmoreno@s-s.mx
Heriberto Garza C.
Heriberto Garza C. Copied!
+5281813360 hgarza@s-s.mx
Jorge León-Orantes
Jorge León-Orantes Copied!
+5255527954 jleon@s-s.mx
José Ramón Ayala
José Ramón Ayala Copied!
+524422900291 jayala@s-s.mx
Paola Morales
Paola Morales Copied!
+525552795508 pmorales@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Gonzalez Copied!
+5552795484 ricardo.gonzalez@s-s.mx
Trade
Trade
Alejandro Luna Arena Copied!
+5215513846 aluna@s-s.mx
Daniel Sosa Copied!
dsosa@s-s.mx
Michel Joseph Zelaya Viesca
Michel Joseph Zelaya Viesca Copied!
+ mzelaya@s-s.mx
Rhiannon Hammond
Rhiannon Hammond Copied!
+5255527954 rhiannon.hammond@s-s.mx
Ricardo Gonzalez Copied!
+5552795484 ricardo.gonzalez@s-s.mx
Trade Task Force
Trade Task Force
Alejandro Luna Arena Copied!
+5215513846 aluna@s-s.mx
Michel Joseph Zelaya Viesca
Michel Joseph Zelaya Viesca Copied!
+ mzelaya@s-s.mx
Other Firm Members
Aaron Levet
Aaron Levet Copied!
alevet@s-s.mx
Agustin Gutierrez Copied!
+5255527954 agutierrez@s-s.mx
Alexa Zuani Copied!
alexa.zuani@s-s.mx
Andrés Remis Copied!
+5255527954 aremis@s-s.mx
Andrés Serrano Copied!
andres.serrano@s-s.mx
Andres Zenteno Oses Copied!
andres.zenteno@s-s.mx
Daniel Fernandez Copied!
+4422900298 daniel.fernandez@s-s.mx
Daniela Flores Salazar
Daniela Flores Salazar Copied!
+528181336014 dflores@s-s.mx
Eduardo Barreira-Reynoso Monterrubio
Eduardo Barreira-Reynoso Monterrubio Copied!
eduardo.barreira@s-s.mx
Efrain Olmedo Copied!
+5552795400 eolmedo@s-s.mx
Elias Zaga Copied!
ezaga@s-s.mx
Erika González Copied!
erika.gonzalez@s-s.mx
Juan Pablo Rodriguez Copied!
jrodriguez@s-s.mx
María Elena Abraham
María Elena Abraham Copied!
+525552795489 mabraham@s-s.mx
María José Martínez Copied!
+ maria.martinez@s-s.mx
Mariana Oderay Alcalá Corro
Mariana Oderay Alcalá Corro Copied!
+ malcala@s-s.mx
Mariano Calderon Copied!
+5255527954 mcalderon@s-s.com.mx
Oliver Iriarte Copied!
oliver.iriarte@s-s.mx
Pablo Laresgoiti Copied!
+5255527954 plares@s-s.mx
Paula Gutierrez Rodriguez Copied!
paula.gutierrez@s-s.mx
Raymundo Fierro Hernández Copied!
rfierro@s-s.mx
Redy Martínez Copied!
rmartinez@s-s.mx
Rogelio José Cavazos Elizondo Copied!
rcavazos@s-s.mx
Santamarina y Steta S.C.
Santamarina y Steta S.C. Copied!
comunicacionsys@s-s.mx
Santiago Ontañón Copied!
sontanon@s-s.mx