Second, I let the tenant know I know their criminal history and tell them to leave.

Although, for it to be a criminal trespass.. something that will actually hold up, he would have to be present with the police there.

We are fair housing compliant regarding animals.Our tenants’ safety and the peaceful enjoyment of their home is important to us, so we do a credit/criminal background check on all applicants aged 18+, as well as employment and prior landlord verifications.

For example, I mention that every adult must pay a $30 application fee, pass my credit/criminal background, make a combined income of 3x the rent, and whether or not the property accepts pets.

Seems like a very strict penalty if this is not followed through.The CTA provides that willfully reporting or attempting to report false or fraudulent beneficial ownership, or willfully failing to report or make updates to the reported data shall be punished with a civil penalty of up to $500/day while the violation continues (up to $10,000) and a criminal penalty of up to two years in prison. 

For example, I mention that every adult must pay a $30 application fee, pass my credit/criminal background, make a combined income of 3x the rent, and whether or not the property accepts pets.

How else would you know which one is the criminal?

Once you start processing the credit/criminal, the money is spent, and you can't get it back.

Or what about the foreign and criminal funds funneled into the DNC through ActBlue?

Does that mean the applicant had a clean criminal record or that the 3rd party wasn't able to screen the applicant?