Ask your Father to co-sign the loan if he doesn't want to OWC.Good Luck!

Two of the units are month to month, and two of them recently signed new contracts. 

Furthermore, it's going to be a headache when you sell if the permits for work inside were NOT pulled & signed off. 

Often times, after the initial showing, the next time I meet my applicants in person is after I've selected a tenant and we're meeting to collect the move-in money and sign the lease. 

Around here, that's how it's done.If he is truly alcoholic, I'd be concerned that he was mentally competent when he signed the contracts.

I would imagine you would want to be pretty selective in adding a roommate as you are married and already an adult...

We even had a serious "bite" that almost moved in earlier this month, but didn't sign the lease.So my question is, since we are about to enter the worst time to get people to move (holidays).

First, you should have a iron clad signed agreement with your property manager for everything.  

(not so important but if they only require 15% down on a single family home that is usually a good sign that you are working with a flexible lender) Can I change title to my LLC?

It could just a joist issue which isn't an expensive fix or something to worry about.Check the ceiling for brown spots as sign of a current or prior leaking room.Window units in house means there is an HVAC issue no matter the reason given by the owner.