Deputies declined to name the wounded men or the person suspected of shooting Bliss.
Deputies said the business is located on a tract of land that houses a private home, small corporate offices, several barn structures and one or more rental housing units.
"There had been an ongoing dispute over being on this property for the last several weeks", Lusczynski said.
The shooting happened at about 4 p.m.at the business on Knights Griffin Road East.
The two other men shot, ages 44 and 45, were not immediately identified because next of kin were being notified, Lusczynski said. One is in stable condition, the other is in critical condition.
One of the wounded men was living and working on the property but had been asked to leave, Lusczynski said. At some point, authorities say, Bliss took out a firearm and shot both men.
A relative of the two men heard the gunshots, ran to the office and shot Bliss, Hillsborough County Sheriff's Col. Donna Lusczynski said. It was not known if the person who shot Bliss will face criminal charges.
The Polk County Sheriff's Office also responded to the scene because the location of Bliss Enterprises straddles the county line.
Bliss Enterprises is a family-owned construction company that has been building barns since the 1980s, according to ABC Action News.