As I'm investigating more... it appears that all of Dayton OH has high crime and sex offenders galore! 

Pull police reports, sex offenders lists, etc.Not every property will need all of these documents, and if you can, I would suggest more than the normal three comps most people recommend, as long as they are all on the low side.

I am an REI in the Detroit region as well, focusing on Oakland and Macomb counties but based in Melbourne AU.  

When I went to put it on the market, I was told that I needed a business license, which triggered a U & O inspection process.

Well I lived thru the 1970's and the "Rock Stars"  lived by the motto  Sex , Drugs and Rock n Roll . 

If the tennis court, golf course, go-cart track, pool room, theatre, concerts or extracurricular sex are more interesting -- then strive to be the best at one of those and forget real estate millions.

So although things like school ratings, crime rates, sex offender registry’s, etc would often time impact where someone will buy/rent property, sometimes people will overlook those things bc of other factors they consider more important (generally location).I pull sold data through a variety of software to analyze accurate ARV or for estimating appraisals. my method for determining rent comps is pretty basic.

From the HUD website:"In the Sale and Rental of Housing: No one may take any of the following actions based on race, color, national origin, religion, sex, familial status or handicap: Refuse to rent or sell housingRefuse to negotiate for housingMake housing unavailableDeny a dwellingSet different terms, conditions or privileges for sale or rental of a dwellingProvide different housing services or facilitiesFalsely deny that housing is available for inspection, sale, or rentalFor profit, persuade owners to sell or rent (blockbusting) orDeny anyone access to or membership in a facility or service (such as a multiple listing service) related to the sale or rental of housing."

Are you a U of R man?

Information on the tenants Look up the crime rate in that area Look up nearby sex offenders that are registered - it can be good to know how many and how far away they are in case you rent to a family, etc.