To add a monkey wrench in the works, the men who live in the next door condo are smoking pot. 

At the end of the day its just a pot of money to pay for things that don’t seem to go right!  

Let's say that a leprechaun's pot of pure 24K gold weighs 100 lbs, 20 lbs. for the pot, 80 lbs for the gold, just enough to be almost impossible to steal.

Ask around for leads on property managers that are getting tired because they may be willing to hand their contracts over to you or sell them real cheap.That should be enough to make you pee or get off the pot.

If you finance and they default you would first need to foreclose and then in the event the occupant does not leave  voluntarily you then must evict.Best to sell outright and not bother financing unless ypu are willing to take the risk..

Once I fixed everything I already had all the furniture, silverware, pots, pans, etc., so I thought what the heck. 

You still can't change locks at this time because you will not have legal possession of your unit until the tenant voluntarily returns it to you (part of a good move-out plan) or a court returns possession to you through the eviction process (a long and costly process).If your tenant intends to not return (obviously) then he or his designee (father) will need to settle things with you.

@Tyler Speelman First thing you want to do is try and get them out voluntarily.

There was just a big pot sitting there to get the water that accidentally goes down the "drain."

The issue I see is that the tenant didn’t really voluntarily abandon the property.