Personally I'd give him time to follow up. At least a week.
You don't want to sell at the moment (legally) so the time pressure isn't on you.
My solicitor also said definitely don't agree anything on the house with out a full settlement. My W didn't take this at all well but then my W is very different to your H. Right now though I'm really glad its sorted.
Both mid 30s, 2 young kids BD 7sep14 XW moved on long ago, now living with OM1 D paperwork in progress
