Do not rely on it for legal advice.

You may already know but make sure that your primary lender restricts that. 

It's certainly not legal here in MA, but I don't know OK law on the topic.If that was all there were to it, I'd say that's a risk you take in wholesaling. 

Check out my personal favorite, Every Landlord's Legal Guide or The Book On Managing Rentals before you get too far into this.

Even though she’s not here year around, it is perfectly legal to have as an owner occupancy.

Biggerpockets http://get.biggerpockets.com/forms/index/ has leases available, you can also look up online places such as legal zoom, law depot, and others.

To a lender, they will both be considered commercial (if the 4+2 are one deed) which will restrict you to commercial mortgages, and the limitations that come with them.From a depreciation standpoint they may both be considered residential depreciating over 27.5 years as opposed to 39.

In the event the title does not clear, what options/legal options are available?

We're  just trying to get them out asap so we can we can move on and they can  be legally released from their obligation to pay rent since they've already moved out but are still bound by terms of the lease. 

The main problem I need to solve is to convert it back to a legal single family house so an end buyer can get conventional financing on it.Up and above that Its up to my discretion on the level of finish.Or I could take the easy profit and sell now...