Note that in many cases the ship can still be destroyed after a surrender. This happens if you have some shots in the air, or if their ship is on fire, for example.

Note that in many cases the ship can still be destroyed after a surrender. This happens if you have some shots in the air, or if their ship is on fire (and you wait), for example.

So yes, you can destroy the ship after striking a deal, however you can't attack them after striking the deal.