What you have to keep in mind is how negotiating works.
Your H is going to ask for EVERYTHING because if he has a brain (doubtful at this point) he knows he will have to make some concessions. It is not uncommon for the person who throws out the first settlement to be WAY off base.
He is also going to try and scare you into doing what he wants.
No worries if wants half the mortgage - just petition him for YOUR living expenses
Or tell him SURE you can have the house, no worries... I will just need a lump sum of cash in the amount of xxx,xxx.00. He will say he doesn't have it and you will say "not my problem!"
If your attny is not giving you time then really, please reconsider. You are now at the point where you need a very skilled and strong negotiator to help you along.