我又仔細看了一遍:
lawer's demanding lette is 8/14 in writing to sell the house; 8/28 closing. no sue, I pay nothing for attorney fee or extra.
If not, they will start to sue, to recover all the costs including attorney's fees.
I do not think buyers expensed anything, they might encounter some cost to lock in rates in multiple time.
I did not take their $1K earnest money.