Jointly led by Luis Nin Estévez and Valeria Techera, the litigation and arbitration department at Posadas is known for its work on class actions and arbitration, representing major local and international clients across key industries, while also advising private individuals. Estevez has extensive experience in complex civil and administrative litigation, with a strong track record in precedent-setting cases, major commercial disputes, and successful representations for key healthcare clients in high-value claims. Techera is recognised for representing public companies, multinationals, and major local clients in complex disputes involving guarantees, bankruptcy, torts, and liability, with a strong recent track record in high-value cases. Virginia Yellinek is knowledgeable in cases related to breach of contract, tort, enforcement guarantees, and bankruptcy. Emiliano Opertti specialises in commercial disputes as part of national and international arbitrations. Maria Eugenia Olaiz has experience in capital markets, consumer law, and bankruptcy law. Micaela Muto specialises in real estate, tax, and administrative matters. Luis Seguí frequently advises on civil, commercial, and probate matters.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- We've been handling all our legal matters with the Posadas team for over 18 years. They provide truly excellent service. Our firm has operations throughout Latin America and we work with many regional offices. Posadas really stands out.
- Litigation partner Valeria Techera is our primary point of contact for litigation matters. Valeria is highly regarded in the local market and possesses extensive knowledge of civil and commercial law. In addition to Valeria, Eugenia Olaiz and Emiliano Opertti are highly valued senior associates. Outside of litigation, Tomás Gurmendez is the senior partner and our lead counsel, with vast experience in M&A, energy, and banking matters.
- Technical quality, responsibility and collaboration.
- The partners at the firm are highly qualified. They always answer questions and queries quickly and with great willingness.
- An excellent team of highly trained professionals. They inspire great confidence in the client when seeking solutions. The team is always very willing to answer any questions.
- The biggest differentiator of Posadas is their strong involvement with the business; they go a step further than legal advice, asking about business objectives and thus challenging our teams about what we want to achieve and what we want to legally protect ourselves from.
Key clients
- Conaprole
- Asociación Española Primera de Socorros Mutuos
- Russomando
- Cubico Sustainable Investments
- CIEMSA
- Gas Sayago
- UTE
- ANCAP
- JHSF Uruguay
- Caterpillar Leasing Chile
- 176 owners of the Icon Tower Brava building
- CHS Uruguay SRL
Work highlights
Represented Conaprole in a complex dispute with the Venezuelan and Uruguayan governments involving an unpaid credit of USD 30 million and a damages claim for USD 60 million.
Represented Asociación Española Primera de Socorros Mutuos and Russomando before the trial court in a case concerning healthcare coverage.
Represented Gas Sayago, UTE and ANCAP in a case which derived from Gas Sayago’s development of the first LNG plant in the country with the Brazilian company OAS as the main EPC contractor.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Luis Nin Estevez; Valeria Techera Barreiro
Other key lawyers
Virginia Yellinek; Emiliano Opertti; Maria Eugenia Olaiz; Micaela Muto; Luis Seguí


