Most cities do not allow "boarding houses" and/or have a "no brothel" law. 

Side note: At one of my apartment buildings in Cleveland we had this chick running a full on brothel out of her unit.

For example in Colorado certain cities had laws against more than 3 non-related individuals being in the same property as it might be considered a brothel.

Your guests appear to have the ability to run a brothel with or without your cameras up and running.

I trusted only Zillow before and got some scammer who used my property as a brothel / casino.Not trusting you enough to provide SSN number is a red flag.

If however they have verifiable income and work out of a legal brothel outside of Vegas and everything else checks out I’d rent to them.  

was this once a brothel?""

C3 zoning in Atlanta is considered "commercial-residential" so there's nothing an underwriter would have heart burn over.Once you own the building and the land next to it, your use, unless specified in your mortgage note (or unless it's illegal like a brothel or a meth lab) is up to you. 

I suspect that almost perfect applicant was trying to rent multiple house to run a network of brothels.

Tim is a great resource on lending and mortgage information and has been a great help to me.To see my project search Investa-brothel on bigger pockets....