And, that's why my recommendation is to acquire as 'vacant possession' because this chaos isn't worth it. 

You may want to tell them to take possession in the name of an LLC and not O/O but as an investor. 

You can not encumber title after agreeing to sell, you can't have a leased property and guarantee all rights in title, the right of possession without disclosing what rights are to be conveyed. 

Working on getting a writt of possession now.

In a quiet title action he would be making the claim that he has the right to the property via the now deceased former owner's gift to him and/or via the law of Adverse Possession as suggested by @Christopher Phillips. 

Moral, even if he bought a house, he'd be the guy who didn't pay his taxes because paying the taxes just isn't as important to him as having his "possessions". 

There is literally no limit to the things you can learn here if you spend the time and possess the initiative!

My  realtor mentioned that it is not the bank's responsibility to give tenant notice to vacate property that once offer is accepted, due diligence period is complete and court stuff in done, during closing and possession, it will be my responsibility to evict the tenant if they do not cooperate and leave as told when i asked for vacant possession in the offer contract.Is this a normal situation during the foreclosure process and dealing with REO properties?

From start to finish, you're typically looking at 30 days to possession (although we've done it faster!).

In July 2021 Sheriff's sale is expected to occur where the GC would take possession of property that is currently vacant.Ask by the GC: Come in as lender to finance the Rehab.Current Price = $ 180,000.00, Rehab = $ 50,000.00,ARV =  $ 320,000.00 My initial thoughts are as follows:Go into a JV or partnership with the GC get 25 % equity into the deal, finance the Rehab as a lender from SOLO 401k.