My suggestion is to use an online landlord software that integrates your application process with legit screening resources like credit, criminal and eviction reports.

No offense, but this just sounds like a catch-22, which would explain the stickiness.

Understand the basic elements to be criminally prosecuted for "Fraudulent Inducement" (and see if it sounds a lot like "wholesaling" to you a. 

Does your lease contain a clause on a tenant's criminal actions?

I won't take offense!

And, it's why I caveat it every time I say it...the appropriate structure will protect you, unless you forfeit your protection by acting like a criminal. 

If you don't take criminals ask them what their criminal record is.

Be aware that if there are civil or criminal penalties in the pipeline, they can go to the new owner.There's a difference between a building that's been ordered "keep vacant" and which can go into the vacant building program, and one that's been condemned.

When closing the call I let them know that I will do a full credit, criminal and background check on the adults.

Especially if they did something they can be criminally liable for.