I am in the process of selling my house, I’m trying to go to closing before the nine days.
What about closing on a house during the nine days, but the purchaser won’t move in till after the nine days?
Would cost the seller money out of pocket if closing is delayed 10 days.
A person should limit his business dealings in the Nine Days, and this includes such dealings as selling a house.
However, if this will cause a loss, it is permitted to perform whatever business dealings are required to avert losses.
Whether the buyer moves in or not does not make a difference concerning the act of selling, which is permitted either way, if required.
Sources: Mishnah Berurah 551:11.