When you say he is on the paper work ... you mean you used his credit and finacials to qualify for the loan.. and he is as stated an owner of record.If you can't work it out.. a mediation service may work well for you.. your not the first one to go through this stuff.. you also may be deem married in common law.. depending on your state so the break up would be handled just like you were married. 

I'd grab them both, sit down and mediate their problems and come to some sort of agreement.  

I will no longer accept those that lived with family in the years prior, as I assume now that that is a cover-up for an eviction (the eviction may have gone to mediation and not finished and thus wont' show as eviction)

The state requires a 30-day period to allow the borrower to request mediation.

Plus, then that seller is giving you equitable interest in the property, and if you stop paying rent it's not an eviction process, it's full blown litigation/arbitration/mediation due to the buyers equitable interest via the rent credit.

She reported him and they said they would have to go to mediation.

I went to mediation and I told her I wanted her to leave and she said she wanted to stay.

They then called board of health to check for lead...found lead...child under 6 living there, too.Went to court and ended up solving in mediation.

All they did was suck the water out, place commercial fans around the room and mediate for MOLD.

You have zero power to mediate anything between them.