Happy to be corrected here, but it seems to me that if you have...

Happy to be corrected here, but it seems to me that if you have not accepted the Offer already, you might as well sell on-mkt.
The only reason one might have accepted the Off-mkt Offer was because of the possibility (albeit very remote) that another bidder may have made a bid.
That remote possibility has clearly gone now.
So same consideration of $1.20 either on-mkt or off-mkt.

So if you sell on-mkt (and it goes to FMG because they are the top buyer at $1.20) then you get paid the consideration on normal mkt terms - ie 3 business days?
If you sell into Offer you get paid 5-7 business days.
Of course if sell into Offer, you pay no brokerage! Horses for courses.
Brokerage seems to be the only issue?