I'm familiar with that Market - having lived there for 20 years until recently. Your PMC is not marketing it effectively likely. You are very Close to KSU and not that far from the Southern Poly Campus of KSU. If you modify your requirements to be flexible in the case of students and market it to students, their parents will cosign and likely be paying anyway. You could rent it by the room and list the rent as half - I'm seeing that done a lot in college towns. I live in Savannah now and a lot of rentals are marketed that way.
I lived in a townhome community not far from there. My neighbors were 4 KSU students. They were actually very good neighbors. Polite and their very rare parties were not wild - no noise complaints or anything. I know some people might be hesitant with students but Id take a chance with parental liability. Especially if you are friendly with your old neighbors in that they'd report anything off to you.