Erick Osvaldo Muñoz Pérez is an associate at Maillard Abogados Laborales, where he leads the strategy and supervision of labor proceedings before Labor Courts and Conciliation and Arbitration Boards across Mexico City and various states throughout the country. His practice focuses on the representation and defense of companies in complex labor disputes, coordinating matters from the pre-litigation stage through direct and indirect constitutional appeals (amparo), as well as the filing and follow-up of the remedies provided under applicable legislation.
He has extensive experience handling strategic labor litigation, coordinating correspondent counsel, and overseeing high-impact matters, standing out for his legal analysis, procedural strategy, and effective management of labor contingencies. His professional experience has allowed him to develop a comprehensive understanding of labor litigation and corporate defense in highly technical and evolving environments.
Erick holds a Law Degree from the Universidad Nacional Autónoma de México (UNAM) and a Diploma in Oral Litigation from the Facultad de Estudios Superiores Aragón of UNAM. He has also strengthened his professional background through specialized programs, including the Introduction to NOM-035-STPS-2018 course and the “Juicio de Amparo 2021” Diploma Program delivered by the Supreme Court of Justice of the Nation.
Prior to joining Maillard Abogados Laborales, he was part of Solución Legal México, where he gained experience in civil, commercial, family, and labor litigation. He also completed his social service at the Office of the Attorney General of Mexico, supporting activities related to criminal investigation files and assisting Federal Public Prosecutors.
He is a member of the Latin American Institute of Labor Law.
Oscar Antonio Pérez Irazabal is a coordinator at Maillard Abogados Laborales, where he has established himself as an expert in individual and collective labor litigation, with extensive experience representing and advising companies in labor disputes, including union-related controversies and highly complex labor proceedings. His practice is distinguished by a strategic approach and strong technical expertise in handling sophisticated labor matters.
He currently serves as Litigation Coordinator, actively participating in the design and implementation of legal strategies for the resolution of both individual and collective labor disputes.
Oscar holds a Law degree from Instituto Tecnológico y de Estudios Superiores de Monterrey. He is currently pursuing a master’s degree in labor law at Centro de Estudios de Posgrado.
He has developed an outstanding professional career in labor law. He began his career at Blancas, Cárdenas y Fernández de Cevallos and later joined Maillard Abogados Laborales, where he has consistently participated in the strategy and management of highly relevant and complex labor proceedings.
He is a member of the Phi Delta Phi International Legal Honor Society, an international legal honor society that recognizes the academic and professional excellence of its members.
Leopoldo Ballesteros Reyes is a coordinator at Maillard Abogados Laborales, where he focuses on strategic labor litigation and the representation of companies before labor authorities across Mexico City and various states throughout the country. He has built a solid career handling and supervising complex labor disputes, actively participating in the development of defense strategies and the coordination of high impact matters for the Firm.
His practice focuses on the comprehensive management of individual and collective labor disputes before Labor Courts, Local and Federal Conciliation and Arbitration Boards, as well as conciliation proceedings before Conciliation Centers. He has extensive experience in the drafting and supervision of claims, responses, evidentiary proceedings, direct and indirect constitutional appeals (amparo), and the analysis of case law, judicial precedents, and legal criteria essential to the development of effective litigation strategies.
Leopoldo is also recognized for his experience supervising and coordinating legal teams, ensuring the proper procedural management of matters under his responsibility and the implementation of strategies aimed at mitigating labor risks and contingencies for the companies.
He holds a Law Degree in Bureaucratic Law from the Instituto Nacional de Estudios Sindicales y de Administración Pública de la Federación de Sindicatos de Trabajadores al Servicio del Estado and a master’s degree in labor Procedural Law from the Centro de Estudios de Posgrado. In addition, he has completed several specialized programs and diplomas in leadership and executive development, pensions and social security, as well as legal updates related to new economies and evolving regulatory frameworks.
Prior to joining Maillard Abogados Laborales, he worked at Salvador Martín del Campo López Law Firm, where he strengthened his experience in labor litigation, drafting employment agreements, and appearing before federal and local labor authorities.
Oscar Rea Sánchez is a coordinator at Maillard Abogados Laborales and has nearly two decades of experience strategically advising and representing companies in labor and employment matters. Throughout his 19 years with the Firm, he has built a solid career in both labor litigation and preventive counseling, handling complex matters and developing strategies aimed at mitigating labor risks and protecting employers’ interests.
His practice focuses on the representation and defense of employers in individual and collective labor disputes, as well as the implementation of internal policies, disciplinary procedures, employment terminations, and labor compliance strategies. His experience enables him to provide practical and efficient solutions aligned with the operational needs and business objectives of companies.
Oscar is recognized for his extensive knowledge of Mexican labor legislation and his strategic approach to the prevention and resolution of labor contingencies. Over the course of his career, he has advised companies across a wide range of industries on the comprehensive management of labor relations, compliance structures, and proceedings before labor authorities.
He graduated from the Faculty of Law of the Universidad Nacional Autónoma de México (UNAM) and holds a professional license issued by the General Directorate of Professions of the Ministry of Public Education.
His experience and long-standing practice in the defense of employers’ interests position him as a trusted advisor for companies seeking sophisticated, strategic, and results-oriented labor counsel.