Single counts of lewd and lascivious battery against a child between the ages of 12-16 and sexual assault on a minor were added in March, court records show.
Close-Hallmark, 35, Destin, was already facing single counts of each of those charges as well as a charge of soliciting or engaging in lewd conduct with a student while acting in a position of authority.
Bosau, who will prosecute the case against Close-Hallmark, said Osceola County criminal investigators had uncovered sufficient evidence to allow for the filing of the latest charges.
Bosau said the events from which the latest charges stem took place during the same time frame that sexual encounters were occurring in Okaloosa County.