The bank wants its money. The pub had been failing for many years, and the mortgage fell into arrears. It indulged the owner by enabling him to get planning for redevelopment, but the owner ran out of money, and has to sell before the bank appoint a Receiver (which is what they have threatened. I heard about this last week, and I have this short window of opportunity to get a deal done. I am confident I can do that.
I don't know if the bank will take a £49k hit, but the way negotiations are progressing, I get the impression that some kind of deal is certainly on the cards. We will see.

Oh, ffs! Why is this difficult for you to grasp, Tobes?
I'm not negotiating with the bank for the sale of the pub - I have already agreed with the pub's owner that I can buy the pub for whatever price it takes to clear the company's mortgage, on the basis that the bank doesn't call on its PG. I have explained all of this several times!
I'm dealing (together with the owner) with the bank to see if they will take a hit on their legal charge.