International law for cross-border business and disputes
From Buenos Aires, we advise companies, founders and funds operating across Argentina, the United States and other markets. We combine fintech regulation, venture finance, international contracts and representation in complex arbitrations and litigation.
Based in Buenos Aires, Jarsun, Ferreira & Calvo advises companies, founders and venture capital funds on cross-border transactions, international disputes and regulated growth. Our team includes attorneys admitted in Argentina and New York, with experience in ICSID proceedings and other international forums.
Practice Areas
Fintech regulation, venture finance, international contracts and dispute resolution for companies and investors operating across Argentina, the United States and Latin America.
Fintech & Financial Regulation
We advise fintech companies, regulated financial institutions and technology platforms on the design, structuring and scaling of regulated financial products and payment infrastructures across the United States and Latin America.
- PSP/BCRA
- PSAV/CNV
- Cross-border payments
Venture Finance & Startups
We provide sophisticated transactional and structuring counsel to venture-backed companies and institutional investors across the full financing lifecycle — from seed rounds to growth-stage transactions and exit structuring.
- Financing rounds
- Cap tables
- VC funds
International Litigation
We advise and represent companies, investors and individuals in complex disputes arising from cross-border contracts, transnational investments and international business operations.
- Multijurisdictional disputes
- Procedural strategy
- Enforcement
Commercial Arbitration
We represent companies, investors and state-owned entities in complex domestic and international commercial arbitrations conducted under leading institutional and ad hoc rules.
- ICC
- UNCITRAL
- International contracts
Investment Arbitration
We represent sovereign States, state-owned entities, and foreign investors in investment arbitrations arising under bilateral investment treaties, free trade agreements and investment contracts.
- ICSID
- Bilateral treaties
- States and investors
Contractual Architecture
We provide sophisticated drafting, negotiation and lifecycle management of commercial, technology and consumer-facing agreements for companies operating across multiple jurisdictions.
- SaaS
- B2B contracts
- Data protection
Why clients choose us
at the same table
We advise on matters that cross Argentine law, U.S. law and international structures, without separating local strategy from cross-border execution.
and disputes connected
We combine experience in fintech, venture finance, international contracts, arbitration and litigation to anticipate risk from initial structuring through dispute resolution.
involvement
Matters are led by partners from start to finish. Clients work with senior lawyers who know the file, the strategy and the commercial context.
Analysis and updates
Decree 475/2026: check-tax exemption for PSAVs and fintechs
The decree repeals the general exclusion that kept crypto-asset transactions from any tax benefit, creates a specific exemption for the accounts of CNV-registered PSAVs, and aligns the tax treatment of electronic payment services with that of the traditional financial system. Effective June 18, 2026.
Let's discuss your
cross-border matter
Tell us briefly about the context. A partner will review the matter and respond within 24 hours.
Contact the firm