Here in Wisconsin, Section 8 qualifications are quite stingy and require people receiving benefits to be people without criminal records or outstanding evictions.

My question is, regarding criminal background what's average for a good tenant?  

This is something that we will not tolerate as we would not expect our investors to tolerate it from us.In regards to the offense you took in us giving you your stats on income we did not mean for this to irritate you or be unprofessional in any way. 

You can obtain credit, criminal, and eviction reports and have your prospect pay for this directly as part of your approval process.I also recommend you do your own verification of tenant rental status and history directly with the previous landlord.I am a long-time satisfied customer of SmartMove, but I receive absolutely NO compensation for this referral.

She’s violated the lease 5x now but she has only committed the same offense two times.

No offense, but I fear you will make many BIG mistakes because of lack of educating yourself.

The wife checks out but her husband has a litany of criminal charges: hit and runs, DUI, etc. from not too long ago.Is this a legitimate reason to deny them? 

You'll sign documents at title saying you understand its a federal offense if you lie about the occupancy status.

7.If you like the property, are you willing to fill out an application for a credit, criminal, and eviction history report?

Ordinance in Cleveland makes it a first degree misdemeanor to buy property in an LLC without registering the LLC to do business in Ohio.  Know of an LLC that just got convicted on two counts.  $500 fine for each count...