ALBANY, N.Y. — New York is expanding its probe nationwide into the 1980s sale of the rights to the World Trade Center name to a nonprofit for $10, resulting in millions of dollars in fees for use of the name in 28 states, according to an official familiar with the investigation.

The official told The Associated Press that letters seeking information on the deals should arrive Monday at 45 World Trade Center complexes, from Alaska to Florida. The official wasn’t authorized to speak publicly about the probe and talked on the condition of anonymity.