The reasoning I require it is because we allow pets, and if the tenants animal causes someone else harm the property owner could be on the hook, the renters insurance helps curb this, we have the tenant name the breed, name,  sex, weight, of the animal (s) on the policy  

I found a potential multi family my only issue is that there is a registered level 3 sex offender that lives on the street.

One of them told me he took over a 12 unit studio building a friend brought and 9 of 12 tenants are registered sex offenders. 

I found out through google that the tenant living on one side is a sex offender.

They offer statewide eviction, nationwide criminal bankruptcies, liens and judgements, U.S. sex offender, FBI/US Marshals lists, terrorist search/OFAC for all renters with or without a social.

I just signed a lease with a tenant on June 15th, 2023. I ran a background check and something did show up but showed (N/A) on the background check. I asked the applicant and they said it was nothing and got dismissed...

My cleaner is in there now, and she found marijuana and paraphernalia, (the lease states NO smoking or marijuana use on the property), dog poop all over the carpets (they said they didn't have a pet and didn't pay a pet fee), a broken kitchen cabinet, dog pee on the bedsheets, sex toys under the bed (just in case the dog poop wasn't nasty enough for my poor cleaner), stickers on the wall and a hole in a door, and lots of personal property of the tenants.

I just read through the NC fair housing law, and the exemptions are owner occupied 4 or less unit property, room rental, religious organization, private club, single sex dorms, and commercial real estate. 

He wouldn’t give me a copy  of a written lease and is now  trying to evict us for holding over because he terminated our month to month lease because we are a married same sex couple  and not brothers as he originally thought.

(criminal, sex offender, address history, credit score, evictions, etc) Based on that data we usually make a decision but will often call previous landlords, do job verification, etc.