Again, you can get in real trouble for not having it and if someone gets seriously hurt, you could face criminal charges.Consult with a CPA, an attorney and an insurance agent to set up your business properly.  

These are not criminal charges?

Get a third party to collect the fee and run the reports (including criminal background checks).

There's a good chance that applicants on McDaniel street are drug dealers or prostitutes, because that's the main drag, so, you might have to deal with letter from the police, telling you that they might seize your house, if you don't evict the tenant, if they've caught them in criminal activity. 

I don't think I need criminal records or things like that just want to find a phone number to call them. 

You need to be checking for evictions, criminal convictions, and employment history just like you would any other tenant.Find our where your local (local to your property) Sect 8 office is and go visit it.  

Don't fix it, bad news, criminal prosecution!

@Adam Rothweiler Sounds like your making the transition from SFR to commercial so the likely 1st purchase would be a smaller building that will likely attract mom & pop businesses.Most folks don't go from SFR to a plaza with a grocery store as the anchor.When you are screening the mom & pop businesses there is no reason not to run a credit and criminal check on the owners themselves. 

I get one low life after another with evictions, criminal histories, low income but thinks they can afford it (75% of income on rent), they are going to pay the landlord who evicted them from their first apartment three years ago back even though I have had all this time to do it and still haven't, he evicted them after their first month it wasn't their fault, I'm innocent, blah bla blah. 

It has no windows and no secondary emergency exit and is uninsurable in it's present condition.If there were a fire now and they were killed,the previous owner could be sued and maybe jailed for negligent homicide.Demanding and accepting one penny from them would make you criminally liable as well.You need to get them out asap and not accept any money from them.Don't give them anymore grief and be helpful finding them somewhere else to go.