I also recommend getting in touch with some turn key operators. 

I have a lot of experience in evaluating homes and the many problems they can have.While I don't mind evaluating home structural component problem I am no longer into fix and flip (on a regular bases) because I don't want to deal with subcontractors or have my own crews to manage (unless I learn to speak Spanish) to rehab houses--I'm bored with that.  

@Curtis Tidwell @Brandon BattleI'm hoping the cash for key strategy works and they can just leave amicably.

I am pretty well rounded with creating my own, yet again, I was hoping for suggestions that might not have been so "turn-key" so to speak. 

@Jeremy Tillotson  anyone in the business long enough will run into one of these.what I get a kick out of is buyers of new homes or turn key homes have an inspection and the inspector finds a little bit of MOld and all hell breaks lose.. and then you have these folks who have lived successfully in a petrie dish for decades LOL..

My advice may be too late for you to implement, but I would highly suggest offering them Cash for Keys.

I have offered this tenant Cash for Keys and they still refused to move out.  

Maybe a more turn-key style would work.  

Neat pics and project....you have some "vintage"  mid century components...

Be sure to set up key word alerts for Louisville, there are meet ups all the time.