Kissner was facing 19 sex related charges, and in a Windsor court Tuesday, a judge delivered her verdict of guilty on nine of them, innocent on eight, and two are still before the courts.
Of the nine convictions, four were sexual exploitation and five of sexual assault.
The victims include five minors and three adults.
Kissner will sentenced in June.
He still faces two other sex-related charges laid by the Ontario Provincial Police last month.