I am glad that D4 is enjoying her time with her dad and gm. She'll have a lot to talk about when she is back home and hopefully some very good memories to reflect back on when they are gone once again.
Good luck w/the IC this afternoon. I'm sure you'll find the right moment to get your xh to sit down to discuss the house. Do you think he's avoiding you because he knows you want to discuss this issue? Sometimes they don't want to discuss separating property, etc., because it is the last thread to the person that they walked away from. It's difficult to understand how their minds work...but some do think this way. I hope and pray that a time should open up for that discussion this weekend.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.