They may fall further as a consequence of all the trade war sabre rattling. 

Things I would like to include are cameras in common areas, Inspection, Cleaning, Noise, Parking, Personal Spaces like fridge and cabinets space, bi-weekly rent collection.Please reply if your near Charlotte, NC for a free lunch. 

For instance, I was looking at a property for STR in a town in VT and the realtor explained the town passed an ordinance preventing repetitive short term rentals of properties because of partying and noise violations. 

Polite and their very rare parties were not wild - no noise complaints or anything.

I had a similar situation with a tenant who kept complaining about noise in my fourplex, specifically bathroom noises from the upstairs unit.I told her I didn’t think she was happy and that we probably chose the wrong apartment for her.

I'd recommend to first look at where you'd like to invest it to see if it's feasible or if you need to adjust your buying criteria.If you're not in the market for something new then I'd look into adding an ADU on the lot and upgrading the windows on the main unit to triple pane glass so that the noise doesn't bother your future tenants.

Did the tenant(s) ever receive any legal notices (late rent, noise, unauthorized occupants, notice to vacate, etc.)?

Putting five unrelated occupants in one home means five cars parked outside, five different group friends visiting the home, increased likelihood of noise or parties, and other problems.Personally, I have pretty strict requirements when three or more unrelated people are renting together because of the potential problems.

Move to duplexes and you learn you need to pick compatible tenants to avoid becoming a mediator in disputes about noise, pets and parking.   

Decide on things like kitchen use, bathroom schedules, and noise levels early.