
The practice group at Creel, García-Cuéllar, Aiza y Enríquez, S.C. is equipped to provide specialist advice on AML matters and the design and implementation of corporate compliance programmes. Additional core strengths for the team include investigation and enforcement mandates, and the provision of advice to companies affected by extortion demands. Leonel Pereznieto steers the practice and brings substantial expertise in compliance, anti-corruption and white-collar investigations and regulatory matters to the table. Appointed counsel in September 2024, Santiago Acosta draws on previous experience acting as director of the white-collar crimes investigation division at the Federal Fiscal Prosecutor’s Office - his practice is focused on both compliance and investigative roles. Senior associate Dafne Méndez majors on data privacy, while additional key contacts at associate level include Iván Saavedra, (regulatory and compliance matters in the financial sector, particularly on anti-money laundering and counter-terrorist financing); and Andrea Vizcarra (administrative and regulatory compliance mandates).
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘They are technical experts in audit and accounting regulatory principles, they provide accurate legal opinions and are well-connected with local authorities.’
- ‘They respond quickly and are available.'
Key clients
- United Parcel Service
- GE Health Care (Mexico)
Work highlights
Assisted UPS with due diligence advice regarding its acquisition of the Mexican logistics company Estafeta.
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.
Santiago Acosta
Dafne Méndez
Practice head
Leonel Pereznieto
Other key lawyers
Santiago Acosta; Dafne Méndez; Iván Saavedra; Andrea Vizcarra
