MIAMI, FL – Four-year-old Hispanic marketing firm Hispanic USA has signed the Miami Dolphins and ING Financial Services to its clients roster. The firm will provide Hispanic PR, strategic consulting and advertising services. Agency principal Jose Cancela, author of the Hispanic marketing book “The Power of Business en Español, Seven Fundamental Keys to Unlocking the Potential of the Spanish Language Hispanic Market” (HarperCollins/Rayo), did not disclose further details about the full scope of the assignments.