If they remain jointly and several liable they would all be responsible for financial consequences of damage or misbehavior (someone gets put out, the remaining 3 have to cover their rent). 

Disclosure of sexual predator databased.

You never know if they have been in trouble or are a sexual offender.

Included in this could be drunk driving convictions, burglary convictions, robbery convictions, and other such misbehaviors.18.

This person sent me a plethora of sexually based correspondence, with little in regard to the actual eviction case.Then he suggested a plan whereby I would be essentially scamming one of my long term tenants at another property.

All I know it was Criminal Sexual Conduct - Second Degree (person under 13) offense and he was sentenced to jail for one year in 2006.

Tenant screening (at least the one built into Smart Property Systems) has a full credit report, and screens homeland security records, sexual predator records, criminal history at the state or Federal level and verifies identity.  

Is your "partner" a sexual partner and also a partner in ownership?

If the guy has any form of sexual criminal record, I'm going to boot him....I may lose $$ by doing it, but I will sleep better at night and have a clear conscience that the person is not part of my life in any way shape or form.

Many states and some localities have added others -- such as gender and sexual orientation -- but convicted felons are not now on any state's list.