If your H is truly civil then I would think that he would want you & the kids to stay in the house until it sells. It's easier to move one person out than three.
My H didn't want a divorce so he wasn't cooperative at all about dividing up the assets & debt & the expensive lawyer which seemed about average in Calif was no help. Tole me to sort through because everything he did would add to the cost if there wasn't agreement to start. (found out years later after I finally walked out that H didn't want a divorce because it would " make him look like a failure"
If you are just getting prepared to leave your H....do you really know how he will react? Is this mutual agreement getting the divorce?
For me I just couldn't tolerate living around him & his behavior any longer....one of his other final comments was that he "thought I would just continue tolerating him the rest of our lives since I had tolerated him so long".
Sometimes we have no idea what's going on inside their mind until after we take the step to leave as it doesn't come out while together because communication is usually bad in the first place for a marriage to get to that point.
I hope this does go as smoothly as you are hoping but beware..you never know. In my case, the lawyer didnt help & I had to back out of the divorce at that time. A few years later I was financially able to just walk out leaving everything behind except my sanity.
Each situation is so different & not mant are text book divorces...wishing you the best with this