
Von Wobeser y Sierra, SC is recognised for its strong corporate and transactional labour practice, which is particularly skilled in managing workforce restructurings stemming from M&A transactions, divestitures, and spin-offs. The group adeptly guides clients through the complexities of Mexico’s subcontracting reforms, ensuring full compliance throughout the restructuring processes. The team is also highly skilled in collective labour matters, representing clients in collective bargaining agreements and labour disputes arising from compliance audits. Co-head Rafael Vallejo has significant experience in international labour matters, advising companies on global mobility and adherence to local employment regulations. Adrián Castillo, who was promoted to partner in January 2025, co-heads the team and focuses on collective disputes in industries such as automotive, financial services and mining. Among the associate ranks, Alejandra Arizpe is noted for her well-rounded labour expertise encompassing recruitment strategies, employment contracts, labour risk prevention, and benefits issues.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘They are very attentive; their responsiveness is incredible compared to other firms of their large size.’
- ‘The practice is distinguished by its meticulous attention to detail and its commitment to excellence. The team is constantly updated with relevant information and regulatory changes, allowing them to offer opinions that are not only high-quality but also reliable and precise.’
Key clients
- BMW de México
- Inditex
Work highlights
Advised Planet Fitness Group on the acquisition of operating clubs owned by JEG-FIT LLC.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Alejandra Arizpe
Practice head
Rafael Vallejo; Adrián Castillo
Other key lawyers
Alejandra Arizpe
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