@Justin PhillipContracts for deed (which what it sounds like) in Texas have significant legal quirks.

I've been told there are legal battles between the casinos and AirBnB and that could last quite a while before settled.

to renting people that i won't rent the RE anymore in around few months from now, step 4: since loan has been fully paid, i could now legally sell the RE.

Also, I've already signed and notarized all documents on my end.

She told me we have 21 days to get them the money, but I don't know exactly what documentation I need to send if we deduct any money.

Of coarse it would go through the legal process through the attorneys.

Legally, you can't do anything because your tenant is under a lease.

But they will make their life easier with automating leasing renewals, money transfers and documentation. 

I have done it once and I won... but I also put up 40k and release it too the seller and they would not come to closing  and did not have the money to pay me back.. so I had no choice in the matter.another 2 years and 15k in legal fees and the only reason the legal fee's were that low the seller would never show to court or answer anything .. if the seller bows their back it can get real expensive.

But it will work for your legal arrangement.