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Strategic SolutionsThat transform legal complexity into opportunity.

A specialized law firm focused on tax, corporate, banking, finance, and regulatory matters, distinguished by combining technical depth, strategic vision, and close partner-level involvement in every client matter.

The Firm

A firm built for complexity.

Matus Ruiz & Romero Apis is a specialized law firm focused on tax, corporate, banking, finance, and regulatory matters, distinguished by combining technical depth, strategic vision, and close partner-level involvement in every client matter. Built on a highly specialized structure, the firm advises clients on complex legal and business challenges with a sophisticated, agile, and solution-oriented approach.

Our practice is grounded in the belief that legal counsel should go beyond technical interpretation. We work as strategic allies to our clients, providing certainty in critical business decisions through personalized attention, solid judgment, and a deep understanding of each client’s industry, objectives, and long-term vision.

With extensive experience in advisory, transactional matters, controversy, and litigation, our team has participated in high-impact matters involving tax disputes, cross-border transactions, corporate restructurings, financing operations, and regulatory challenges.

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The firm in numbers

Experience, transactions and specialization.

+20

Years of partner experience

+$50B

USD in structured finance transactions

6

Specialized practice areas

About

Mission and vision.

A firm that understands law as a decision-making tool: close in its approach, rigorous in its analysis, and strategic in its outcome.

Mission

Transform legal complexity into opportunity.

To act as strategic allies to our clients, providing certainty in their most relevant business decisions through direct involvement, sound legal judgment, and technical excellence.

Vision

To be the reference in the matters that define an industry.

To consolidate our position as a reference firm in highly complex tax, corporate, banking, finance, and regulatory matters, with a lasting impact on our clients’ critical business decisions.

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People

Team

Complementary backgrounds in tax, corporate, banking and finance, with experience in litigation, regulation and compliance.

Experience

Matters that define our practice.

Selected matters in tax litigation, controversy, refund recovery, and transactional work.

USD $50B

IMF Flexible Credit Line

International Structured Finance Agreements

Legal implementation of Mexico’s US$50 billion IMF Flexible Credit Line, coordinating the legal structuring, negotiation, and execution of the necessary documentation to ensure full compliance with applicable regulatory and institutional requirements. This work contributed to reducing sovereign debt interest payments by US$4.9 billion through a precise and strategically designed legal framework that strengthened Mexico’s financial position and supported macroeconomic stability.

USD $500M

Transfer pricing

Major Mexican Mining Producer

Participation in a high-complexity conclusive agreement (2022) addressing a tax contingency exceeding USD 500 million for tax years 2013–2016. The matter involved transfer pricing, presumptive determination of silver pricing, tax treaties, and transactions with foreign residents, and had significant subsequent regulatory impact.

USD $441M

Corporate restructuring

Corporate Restructuring for Foreign Pension Fund Investments

Designed and implemented a corporate restructuring involving the Mexican investments of a foreign pension and retirement fund. The reorganization was structured to safeguard the fund’s investments in Mexico, which were subject to a preferential Income Tax regime. The transaction value exceeded USD 441 million.

Some of the matters were led by members of the team during prior professional roles at other firms or institutions, where their role was central to the outcome.

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Accreditations & Affiliations

Recognition & Memberships

Independent rankings and professional memberships that reflect the firm’s standing in tax and legal practice.

Rankings & Directories

International rankings & directories

Independent publications that assess the firm’s legal and tax practice in Mexico and Latin America.

International directory
Chambers and Partners
Chambers and PartnersIndependent global legal rankings
International directory
Best Lawyers
Best LawyersMexico, 2025–2026
International directory
IFLR International Financial Law Review
IFLRInternational Financial Law Review
International directory
ITR World Tax
ITR · World TaxITR · World Tax
International directory
LACCA Latin American Corporate Counsel Association
LACCALatin American Corporate Counsel Association
International directory
Who’s Who Legal
Who’s Who LegalWho’s Who Legal

Memberships

Professional memberships & associations

Collegiate affiliations that reaffirm our commitment to technical excellence and professional ethics.

International Fiscal Association
Barra Mexicana, Colegio de Abogados
Colegio de Contadores Públicos de México

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Contact

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Address

Blvd. de los Virreyes 220
Lomas de Chapultepec IV Secc.
Alcaldía Miguel Hidalgo
11000 · Mexico City

Email

contacto@matus-ruiz.comfmatus@matus-ruiz.comnruiz@matus-ruiz.comeromeroapis@matus-ruiz.com
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