If he thinks you are doing criminal activity -I don’t think I would be working with him and vice versa.  

Jason, to your specific question regarding additional screening.I'm continuing with the same screening as before which is: 650 credit score. 3x gross income, 1-year lease minimum with spring lease starting dates, previous landlord background checks, and criminal history only with the view as it contributes to the overall assessment and is not an automatic disqualified on its own. 

They told me if he had broken back in after he was fired then they could do a report and it would be criminal.

Three potential issues @Michael Cavalli. 1) If you rent the property and some calamity occurs, earthquake, fire, tenant accident, whatever and the tenant is hurt or killed on/in the property that was converted without permits you would be criminally liable. 2.)

From what I've seen on youtube, the bill contains the following:1- Free rent for all tenants across the US regardless of income for a year2- Landlords can file for Government assistance which comes with the following conditions   a- No raising of rent for 5 years   b- Government gets first right of refusal if you sell your property within 5 years   c- You can't discriminate based on criminal background or credit on new tenants   d- Something about the tenant getting 10% interest in your property   e- You must accept applications from S8 tenants3- The Feds will give money to local governments to help them buy up properties to convert to low income housingThis bill has little chances of passing but if what I read is true, this mindset is terrifying. 

Currently waiting for EIN,passport ,work visa /residency copy.he has also requested a criminal background check from Italy.

Job hopping, any record of credit issues, criminal issues, frequent moving, roommates vs. family or single. 

The same way most criminals get caught, by not being very smart.

If there is criminal activity, get the police involved. 

For example before Covid Minneapolis passed a new screening ordinance that will not let us use credit, criminal (very subjective/minefield) and evictions past 3 years!