Salaberren & Lopez Sanson (SyLS) > Buenos Aires, Argentina > Firm Profile

Salaberren & Lopez Sanson (SyLS)

Argentina > Fintech Tier 2

Salaberren & Lopez Sanson (SyLS) is recognised for its deep expertise assisting centralised and decentralised blockchain companies with integration across different verticals in the finance ecosystem. The team’s client roster includes leading blockchain-based metaverse companies, smart contract audit firms and a number of cryptoasset exchanges, who turn to the team for strategic advice on regulatory-compliant and tax efficient business structures. The team is co-led by founding partner Sebastián López Sanson, who is widely acknowledged as one of Argentina’s foremost technology lawyers; and partner Juan Manuel Campos Alvarez, an expert in blockchain-related matters.

Practice head(s):

Sebastian Lopez Sanson; Juan Manuel Campos Alvarez

Key clients

Decentraland Foundation

Nomic Foundation


Open Zeppelin

Big Time Studios

Monster League Studios

The Coca-Cola Company

Work highlights

  • Provide ongoing legal advice to the Decentraland Foundation, which protects the IP and decentralisation of Decentraland, a blockchain metaverse governed by a Decentralized Autonomous Organization (DAO), which pioneered in the use of NFTs and tokens.
  • Assisted with the corporate structuring and incorporation of the Nomic Foundation which develops ‘hardhat’ (developer tools for the Ethereum environment), as well as advice on regulatory matters.
  • Assisted with the corporate structuring of Big Time Studios, a blockchain gaming company using a play-to-earn model, NFTs and tokens. We provide ongoing advice on several legal matters, including corporate, tax, labour, data privacy and regulatory matters.

Argentina > Corporate and M&A Tier 4

Corporate and tax boutique Salaberren & Lopez Sanson (SyLS) is known for its ‘clearly defined areas of expertise’ and high levels of senior partner engagement at all times. Handling a mix of domestic and cross-border mandates, the firm serves a carefully-curated list of long-standing  local and international clients. Food and drink and agribusiness are two areas of strength, with technology another area of deep expertise that has accounted for a material share of the firm’s work during the last 12 to 18 months.  The well-networked and respected M&A practitioner Rafael Salaberren co-heads the practice with Juan Manuel Campos Alvarez, who has a strong venture capital practice. Moreover, since research concluded, the firm has announced its opening of an office in Montevideo, Uruguay, in conjunction with well-known local practitioner, former Posadas, Posadas & Vecino partner, Eduardo Ferrari – effective as of June 2023.  

Practice head(s):

Rafael Salaberren Dupont; Juan Manuel Campos Alvarez


The team is very good. The firm has clearly defined areas of expertise and a comprehensive view of cases and clients.

They are differentiated by the direct involvement of the most senior partners. This delivers superior results within shorter time frames. Rafael Salaberren and Sebastián López Sansón stand out.

Key clients

The Coca-Cola Company

Grupo Insud

Kaszek Ventures

Mercado Libre

Interenergy Holdings

Excon Constructora (Chile)

Delivery Hero

Kerry Ingredients


Pampa Energía

The Yield Lab

BigTime Studios

General Catalyst


Moken League Studios

Tiger Global

Work highlights

  • Represented Grupo Insud in the acquisition of an agricultural company focused on dairy farming from its German and Swiss owners
  • Represented Coca-Cola in the reorganisation of the WABI project globally, advising on different structures in different countries to support implementation.

Argentina > Tax Tier 4

Corporate and tax boutique Salaberren & Lopez Sanson (SyLS) keeps a low profile but advises an impressive list of domestic and international clients. The team is well-regarded for its experience handling the tax-aspects of transactional matters. Tax litigation matters are  also undertaken. Respected department head Sebastián López Sanson specialises in tax planning work and has thriving technology practice. Highly-rated tax litigation lawyer Ruben Atim leads on tax disputes. Moreover, the firm announced the opening of an office in Montevideo, Uruguay, in conjunction with well-known local practitioner (and former Posadas, Posadas & Vecino partner), Eduardo Ferrari, with effect from June 2023.

Practice head(s):

Sebastián López Sanson

Argentina > Compliance

Salaberren & Lopez Sanson (SyLS) assists companies with the implementation of compliance procedures to help prevent and detect violations of laws and regulations. Blockchain, gaming, fintech and pharmaceuticals are key areas for the practice, which is co-lead by Juan Manuel Campos Alvarez and semi-senior associate, Julieta López Ayechu.
Photo Name Position Profile
Rubén Atim photo Rubén Atim Partner – Head of Domestic Taxation and Tax Litigation.
Juan Manuel Campos Alvarez photo Juan Manuel Campos Alvarez Partner – Head of General Corporate and Finance Regulation Juan Manuel is…
Sebastian Lopez Sanson photo Sebastian Lopez Sanson Co-Founding Partner – Head of Technology Ventures and Taxation. Sebastián is a…
Rafael Salaberren Dupont photo Rafael Salaberren Dupont Co-Founding Partner of SyLS and Head of the Corporate and M&A Department…