After decades of heavy leftist government intervention into private business, Argentina's international legal practices have been returning to life under the pro-business administration of Mauricio Macri, elected to the presidency in 2015.

Capital markets, project finance and energy practices are thriving, and those focusing on public-private partnerships, private equity, compliance and M&A are expected to grow with the government's planned infrastructure and transportation improvements, the strengthening of anti-corruption laws, and private-sector demand for mining development.

“I cannot imagine how this could be going any quicker or better given the history,” says Miami-based Carlos Viana, head of White & Case's Latin America, energy, infrastructure and project finance practices. “Together with Mexico, Argentina is the most exciting and happening combined energy and infrastructure market in Latin America—by a lot.”