Regulatory compliance
Portal registration, compliance manual, SAT notices and ten-year record retention.
Complicated matters,made simple.
Legal, tax and compliance firm in Mexico City and Houston
Anti-money laundering, defense and tax strategy for companies and families operating in Mexico and abroad.
- LexTalk 2026Leading Lawyer of the Year
- Mexico City · Houstontwo offices, one team
- Mexico + 7treaty jurisdictions
MethodFrom idea to protection, in four steps.
Start with an assessment- 1AssessmentRisks and priorities, in writing.
- 2Clear planScope, timing and cost approved by you.
- 3ExecutionA responsible partner and regular reports.
- 4ProtectionPreventive follow-up so the problem does not return.
Anti-Money Laundering · AML/CFT
Compliance that withstandsa regulatory review.
We design, implement, audit and operate compliance programs under Mexico's anti-money laundering law (LFPIORPI) and its current reform. Your company knows what to report, when to report it and what evidence supports it before the UIF, the SAT and the CNBV.
Risk mitigation
Risk-based approach, beneficial owner identification and limiting the compliance officer's personal liability (Art. 41 Bis).
Audit and internal controls
Internal or external audit (Art. 12 Bis), control testing and a remediation plan with dates and owners.
Vulnerable sectors
Real estate, leasing, precious metals and jewelry, lending, foreign trade, donations and professional services.
CASTORESDIGITALES
BeaverGuard.Compliance that runs itself.
Our sister company's platform automates each client file, restricted-list screening, the risk matrix and report preparation. Fewer spreadsheets, more audit-ready evidence.
- Customer identification files
- Restricted lists and alerts
- Risk matrix per client
- SAT notices
- 10-year archive
- Monthly license per company
Practice
Legal and corporate consultingwith cross-border reach.
Three layers and one responsible partner. Compliance and risk, because prevention is where we come from; business operations, for the company's day-to-day; and international strategy, for those operating between Mexico and the world. Lawyers, public accountants, forensic auditors and compliance specialists certified by the UIF at the same table.
01 Compliance and risk
02 Business operations
03 International strategy
Compliance and risk
Anti-money laundering
- AML/CFT assessment and remediationIdentification of the vulnerable activity, gaps under the LFPIORPI and its reform, and a regularization plan before the SAT and the FIU.
- Compliance programManual, risk-based approach, client identification files, filings and training, with a certified compliance officer.
- Audit and internal controlsInternal and external AML/CFT audits, and control opinions for boards and third parties.
Compliance and risk
Corporate and economic crime
- Complaints and victim representationWhen the company or family is the victim of fraud, breach of trust, fraudulent management or dispossession: criminal complaint, work alongside the prosecutor and recovery of damages.
- Defense of companies and executivesDefense in criminal investigations and accusatory proceedings, including financial crimes and money-laundering offenses (Art. 400 Bis, Federal Criminal Code).
- Internal investigations and expert evidenceForensic investigation, chain of custody and coordination of accounting and financial expert reports that support the case.
Compliance and risk
Litigation and recovery
- Civil and commercialRecovery of past-due receivables, promissory notes, oral commercial trials, contract enforcement and assignment of litigation rights.
- Insurance, insolvency and arbitrationInsurance claims, commercial insolvency proceedings and commercial arbitration, before federal and local courts.
- Amparo proceedingsDirect and indirect amparo in tax, administrative, criminal or civil matters, with emphasis on suspending the challenged act.
Business operations
Corporate and contracts
- Companies and corporate governanceIncorporation, shareholder meetings, bylaw amendments, corporate books, mergers, spin-offs and restructurings, with a focus on protecting shareholders.
- Contracts and legal auditCommercial, supply, lease, assignment and services agreements; a 120-point legal audit that finds contingencies before they become costly.
- Comprehensive legal retainerOne responsible partner and one monthly fee for the company's day-to-day legal work, with defined scope and response times.
Business operations
Employment, REPSE and social security
- Corporate employmentPreventive and contentious advice: contracts, workplace rules, NOM-035, terminations and defense before labor courts.
- REPSE and specialized servicesRegistration and renewal with the Ministry of Labor (STPS), master agreements for specialized services and supplier files with integrated AML/CFT and KYC.
- IMSS and InfonavitWorkplace risk premium, statute of limitations on tax credits and defense against contribution assessments.
Business operations
Real estate and construction
- Property regularizationRegularization and titling of land, mergers and subdivisions of lots, purchase agreements, mortgage nullity and defense of possession.
- Construction and developmentConstruction and maintenance contracts, permits and licenses, and AML/CFT compliance for developers and builders as a vulnerable activity.
- Real estate retainerMonthly support for real estate firms and developers: contracts, leases, collections and coordination with notaries.
Business operations
Administrative and regulatory
- Permits and operating noticesOperating notices, licenses and inspection visits before local and federal authorities on environmental, water and civil protection matters.
- Regularization of schoolsIncorporation and regularization of schools and official recognition of study programs.
- Collections before PEMEX and government agenciesCollections, settlement and administrative procedures before PEMEX, other state-owned companies and federal and local agencies.
- Notarial complaints and liabilityComplaints before notary associations and notarial oversight authorities for withheld deeds, improper fees or irregularities in the notarial record.
Business operations
Family, wealth and succession
- Family business and wealth protocolFrom founder-led operation to a professional institution: ownership, governance and management, to prevent conflict between generations.
- Family lawDivorce, settlements, custody and support, by the least draining route and always protecting the family's wealth.
- Estates and willsProbate proceedings, wills and planning for the transfer of wealth.
Business operations
Industrial and intellectual property
- Trademark registrationPhonetic search, applications, registrations and renewals before IMPI.
- Defense of intangible assetsResponses to oppositions, cancellation actions, infringements, licenses and proof-of-use files.
- Copyright and art contractsRegistration of works and assignment, license and sale agreements for artwork.
Business operations
Nonprofits and authorized donees
- Nonprofit formation and governanceFormation, bylaws, members' meetings, CLUNI registration and institutional strengthening of civil society organizations.
- Authorized donee status and complianceObtaining and keeping authorized-donee status, SAT transparency filings and AML/CFT for donations as a vulnerable activity.
International strategy
Tax strategy and defense
- Domestic and international tax strategyStructures in treaty jurisdictions with real substance, coordinated with licensed advisors in each jurisdiction.
- Tax and administrative defenseDefense against the SAT, IMSS, Infonavit and customs, and before the Federal Court of Administrative Justice.
- Tax opinions and transaction auditsTax opinions by a SAT-registered public accountant and technical opinions on specific transactions.
- Substance files and accountingSubstance files for the SAT, critical under Article 69-B of the Federal Tax Code, and monthly accounting and tax compliance.
International strategy
Mexico–US nearshoring
- Cross-border operationsCompanies in both countries (S.A., S.A.P.I., LLC, Corp.), bilingual international contracts, USMCA and binational FCPA, OFAC and LFPIORPI compliance.
- Foreign investment in MexicoEntry structure, filings with the Ministry of Economy, and AML/CFT and tax compliance from day one.
International strategy
Immigration and nationality
- Naturalization and nationalityNaturalization certificates and declarations of Mexican nationality by birth before the Ministry of Foreign Affairs (SRE).
- Residency and business visasFilings before Mexico's National Migration Institute for executives, investors and their families, and coordination of business visas with licensed U.S. immigration attorneys.
One monthly fee.One point of contact.
Instead of a lawyer, an accountant and a software vendor who never talk to each other, the client has Sinergia.
- Legalresponsible partner and legal retainer
- Accountingaccounting and tax, month by month
- DigitalBeaverGuard license
International tax strategy
Treaty jurisdictions,structures with substance.
We structure operations and wealth in Mexico and in seven jurisdictions that have a double taxation treaty with Mexico. Every structure has a business purpose, real activity and full transparency before the authorities.
- Treaty in forceOnly jurisdictions with a tax treaty with Mexico.
- Real substanceOffices, people and decisions where the company sits.
- TransparencyIdentified beneficial owners and exchange of information (CRS).
- Corporate and wealthFor the company's operations and for the family's wealth.
Mexico
Home baseOperating and wealth base: companies, tax incentives and succession planning.
- Substance
- Tax domicile and operations in Mexico.
- Review
- Substance (Art. 69-B) and business purpose (Art. 5-A Federal Tax Code).
CorporateWealthHome jurisdiction
United States
North AmericaCommercial operations through an LLC or Corp., nearshoring and real estate investment.
- Substance
- Real operations and nexus in the state of formation.
- Review
- Permanent establishment, transfer pricing and FATCA.
CorporateWealthTreaty in force
Canada
North AmericaTrade under the USMCA and investment in North America.
- Substance
- Real commercial operations in Canada.
- Review
- USMCA rules of origin and transfer pricing.
CorporateTreaty in force
Panama
Latin AmericaRegional logistics hub with real operations, reviewed against preferential tax regime rules.
- Substance
- Office and staff in Panama.
- Review
- Preferential tax regimes (Title VI, Mexican Income Tax Law) and beneficial ownership.
CorporateTreaty in force
Spain
EuropeGateway to the European Union and family wealth planning.
- Substance
- Effective management from Spain.
- Review
- Tax residence and EU anti-abuse rules.
CorporateWealthTreaty in force
Netherlands
EuropeHolding companies with real operations, trade and logistics in Europe.
- Substance
- Management and staff in the Netherlands.
- Review
- EU anti-abuse rules and beneficial ownership of dividends.
CorporateTreaty in force
Luxembourg
EuropeRegulated funds and investment vehicles.
- Substance
- Regulated manager and local governance.
- Review
- Preferential tax regimes and fund transparency.
WealthTreaty in force
Singapore
Asia-PacificMexico–Singapore structures for trade and investment in Asia, with real presence in the region.
- Substance
- Management and operations in Singapore.
- Review
- Preferential regimes on passive income and CRS exchange.
CorporateTreaty in force
See required substance and review points by jurisdiction →
What we do not do
We do not design structures without economic activity, we do not conceal beneficial owners and we do not use jurisdictions to avoid reporting obligations. Every structure is reviewed against preferential tax regime rules, reportable scheme rules and automatic exchange of information.
See domestic and cross-border scope
Domestic
- Effective tax burden reviewAnalysis of the group structure, its flows and its real effective rate.
- Current incentives and deductionsPlan México (immediate deduction of investments and additional training deduction), IMMEX and sector incentives.
- Restructurings with business purposeMergers, spin-offs and reorganizations that meet Article 5-A of the Federal Tax Code, with review of reportable schemes.
- Substance and defenseFiles that support every deduction under Article 69-B and in SAT reviews.
Cross-border
- Double taxation treatiesTax residence, permanent establishment and withholding under the treaties Mexico has signed with each jurisdiction.
- Transfer pricingRelated-party transactions and bilingual intercompany agreements.
- International wealth strategyStructures tailored to each client, taking into account tax residence, treaties in force, automatic exchange of information (CRS) and preferential tax regime rules.
- Cross-jurisdiction flowsDividends, royalties, services and profit repatriation.
We work alongside licensed tax advisors in each jurisdiction.
Request an international tax assessmentPeople
Partners and specialistsby name.
Lawyers, accountants and technology specialists working as one team between Mexico City and Houston.
15 people
SG
Salvador García Santos Rivero
Managing Partner AML · Anti-corruption · Corporate · Mexico–U.S.Law degree from Tecnológico de Monterrey and master's degree from the University of Salamanca. Leading Lawyer of the Year 2026, LexTalk World.
FO
Fernanda Orta Barragán
Chief Technology Officer Technology · BeaverGuardNanotechnology engineer (UDLAP), PMP-certified. International experience in digital transformation and 5G networks.
MC
Mayela Camiña Cervantes
Director of Accounting and Tax Accounting · Tax · AML and forensic auditPublic Accountant (UNAM). Certified by the UIF and by the IMCP in anti-money laundering and anti-corruption.
MB
Miguel Ángel Basave Hernández
Senior Associate Corporate · Anti-money launderingAML/CFT compliance lawyer with a background in banking and financial institutions.
MP
Marco Peña Ortiz
Of Counsel Industrial and intellectual propertyRegistration and defense of trademarks, patents and copyrights before the IMPI.
LR
Lorena Rivera González
Of Counsel CriminalFormer Director of the Family Violence Care Center of the Mexico City Attorney General's Office.
ES
Emmanuel Sánchez Navarrete
Of Counsel LaborLaw degree from Universidad Panamericana. Former Clerk of the Court at a Federal Labor Court in Guadalajara.
CM
Carolina Mondragón Gutiérrez
Tax Strategist Tax strategyPublic Accountant (UNAM) with a master's in Taxation from Universidad Panamericana and practice in tax planning and substance.
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Contact
Thirty minutesto know where you stand.
By the end you will know which risks exist, which solutions apply, how long they take and what they cost. If Sinergia is not the right firm, we will tell you who to call.
Mexico City+52 55 5089 8189
Houston+1 (832) 390-2700
WhatsApp+52 55 1761 5886
Emailcontabilidad@sinergias.pro
Mexico CityAv. Presidente Masaryk 111, 1st floor
Polanco V Sección, C.P. 11560
Polanco V Sección, C.P. 11560
Houston, TexasTC Energy Center
700 Louisiana St., Floor 39
Houston, TX 77002
+1 (832) 390-2700
700 Louisiana St., Floor 39
Houston, TX 77002
+1 (832) 390-2700