This addresses @Jack Tucker 's comments about how to grow as a turn-key operator without messing up.Our Cleveland guy didn't know how to do that (I'll call him Bill to protect his identity).

Too many flakes out there trying to steal peoples identities by placing ads to sell stuff, for employment, etc.

A month after our acquisition, the fourplex right next to ours sold for 490k (identical) , so we felt good about it.

As most have already said, as long as you haven't accepted them yet, you should be fine as long as your decision follows the Fair Housing Act (meaning you're declining of their application is not based on Race, Color, National Origin, Religion, Sex (including gender identity and sexual orientation), Familial Status, or Disability). 

Potential renters can go online and for $500 purchase a complete identity. 

You also couldn’t redecorate as all rooms had to be as close to identical as possible. 

I don't know the particular company you referenced, but all of the criteria sounds nearly identical to what a number of other companies are doing wherein they have you fill out an application and then use your information to apply to various credit card companies on your behalf.

I can't verify their identity, their resident history, their ability to pay, the criminal record, or anything else.

They were unable to do that because they had stolen someone else's identity and the bank caught on to them. 

Purchase price: $430,000 Cash invested: $70,000 Sale price: $1,035,000 Four cabins on the Shenandoah River in Luray, VA, each identical 1 bedroom, 1 bathroom, 600sf with a 250sf covered patio.