I just did this. It was 11k, what an absolute racket. The broker was useless and it felt so awful to pay him thousands of dollars for a few minutes of his time.
Apparently agents typically recommend the seller wrap it up into their side to make the deal more smooth and appealing to the buyer such that we never noticed when we bought into a neighborhood. Of course you can imagine the feeling of paying a do nothing management firm you despise many thousands for the privilege of getting the hell out!