Tax litigation
Technical defense in proceedings where the authority’s determination directly compromises corporate assets.
Founding partner
Luis Alejandro Casarín López
Legal strategy, dispute intervention, and high-specialty judgment.
With more than two decades of experience, his practice has focused on resolving highly complex tax and corporate disputes, where legal judgment directly affects financial and operational certainty.
25+Years of uninterrupted practice
Technical and strategic judgment
Defense is not a mechanical reaction, but the structured design of legal scenarios. The objective is not merely to resolve the immediate conflict, but to build sustained conditions of certainty within complex regulatory environments.
Areas of practice
Technical specialization applied to the resolution of structural conflicts
Tax structuring
Design of legal frameworks that allow operations with certainty in complex regulatory environments.
Disputes
Resolution of conflicts through technical analysis and the definition of legal pathways.
Strategic decisions
High-level advisory for boards in transition or restructuring processes with legal and financial impact.
Intervention methodology
Six working phases
01
Analysis
Technical immersion in the structure of the matter to identify critical variables.
02
Risks
Structured identification of contingencies and possible scenarios for decision-making.
03
Design
Architecture of the legal strategy with a focus on precedents and applicable case law.
04
Scenarios
Simulation of authority responses in order to anticipate movements and regulatory effects.
05
Execution
Rigorous tactical implementation with constant technical follow-up.
06
Confidentiality
Strict protection of information and discretion at every level of intervention.
Trajectory
Academic formation and professional development
His career has developed at the intersection of tax, corporate, and strategic law, participating in the resolution of complex matters across different economic sectors, both in preventive advisory work and in contentious proceedings.
Academic background
Doctorate in Criminal Law
CESCIJUC, degree in process.
MBA
EGADE Business School, Tecnológico de Monterrey, with an academic excellence scholarship and study stays in Ireland and Peru.
Master’s Degree in Commercial and Corporate Law
Universidad Panamericana.
Law Degree
ITESO, with postgraduate studies in Tax Law.
Professional trajectory
æquitas consultoría (2019 - Present)
Managing Partner. Specialized consulting in tax structures, mergers and acquisitions, restructuring, tax and administrative litigation.
Andersen Tax & Legal (2018 - 2019)
Tax Practice Partner. International tax planning, litigation, multinational advisory.
Basham, Ringe y Correa (2016 - 2018)
Senior Associate. Reopened tax practice in Monterrey, delivered 30 presentations to over 1,000 attendees. Generated MXN $4M in new business.
Baker & McKenzie (2002 - 2004)
Senior Associate. Two of his constitutional appeals served as precedents for Supreme Court jurisprudence. Won over 200 constitutional trials.
General Counsel (2007 - 2016)
Grupo Fernández, Arriva Hospitality Group. Achieved savings of over MXN $200M through tax litigation, condonation, and structural planning.
Professional judgment
Tax law is not exhausted by the rule itself but by its correct interpretation within real economic contexts.
- Prioritization of operational viability over isolated procedural resolution.
- Technical rigor applied to the achievement of institutional results.
- Holistic vision of the tax system in national and international frameworks.
Constitutional milestone
Promoter of taxpayer rights defense
In 2019 and 2020, he led constitutional injunctions against the appointment process for the head of the Taxpayer Defense Attorney’s Office.
These interventions resulted in rulings that required the appointment process to be reconsidered, contributing to the office being filled by a profile with technical expertise in tax matters.
This matter positioned his practice as a differentiator within constitutional litigation applied to tax matters at a national level.
Institutional presence
Teaching, forums, and specialized publications
Teaching
Lecturer at Tecnológico de Monterrey, Universidad Panamericana, and the Federal Judiciary Council.
Technical forums
Speaker at specialized conventions and tax update forums.
Publications
Author in tax and corporate specialty media.
Professional associations
Active member of reference commissions and organizations in tax matters.
Direct technical consultation
Start a technical consultation regarding the legal and tax situation of your organization.
Schedule consultation