Spanish hotel chain Meliá Hotels International SA has been hit with a class-action suit—the most sweeping action so far under Title III of the Helms-Burton Act, which allows Americans to sue companies doing business in Cuba if they are profiting off of land expropriated after the 1959 Cuban revolution.

The suit, filed Wednesday by Coral Gables-based Rivero Mestre, lists nearly 40 plaintiffs among four families with the majority living in Miami-Dade County. White & Case partner and former Florida Supreme Court Justice Raoul Cantero is one of the plaintiffs.