O'Farrell

O'Farrell is best known for its outstanding track record in tax litigation, where it has secured favourable outcomes for corporate and individual taxpayers in high-stakes, precedent-setting tax disputes in the municipal, provincial and national courts. In addition to the strength of its contentious practice, the firm also covers tax-free organisations, social security tax, holding company taxation, stamp taxation and energy taxation. The practice is led by exceptional tax practitioner Miguel A.M. Tesón, who is called on by blue-chip international and domestic clients for advice on cross-border taxation matters, transfer pricing, tax planning, federal tax law and local taxation. A trio of three partners provide further senior expertise. The vastly experienced Guillermo Lalanne is a reference on constitutional and national tax law, and advises on complex litigation; Valeria Estathio is a go-to name on federal and international tax law matters, with double taxation conventions, inbound investments, and cross-border reorganisations particularly strong areas; and tax disputes lawyer María Celina Valls handles transfer pricing disputes in agribusiness and leads on inflation adjustment taxation issues.