Verify they are students in good standing and do background/criminal/credit checks, but only put the student on the lease.  

He finds Charlie who checks out well with Credit/criminal/background checks.

What if he is trying to hide a criminal background?

I just want to know she isn't a criminal with a history of evictions.

These are generally around credit, criminal, and evictions but could expand for instance to your pet policy and or smoking etc..  

You can be just as tough on requirements for good credit, no criminal, no eviction, good references, etc.  

Basically, your policy has to have a reason for saying no to criminal offenses, and your policy can't be more discriminatory towards one race than another.The document says that discriminating against criminals can be harder on blacks and hispanics than other races.  

For a criminal perspective, call local police. 

Section 8 is a two edged sword that helps people that want to improve their lives, yet creates mobility for bad people to enter neighborhoods that are not accustomed to criminal lifestyles. 

I wanted proof they were tenants in good standing, and still did credit/criminal/eviction/landlord checks on them.