The Kelly Hotel in downtown St. Petersburg has been sold to owners of another historic hotel in the city. Stearns Bank sold the 65-room hotel located at 326 First Ave. N to Williams Park Hotel LLC for $910,000, said Elliott Ross of Ross Realty Group, which represented the seller. The hotel last sold in March 2006 for $2.95 million. Principals of Williams Park Hotel also own the Shirley Ann Hotel on First Ave. S. The new owners plan an extensive renovation of the Kelly Hotel, Ross said.