WR, One more important thing to add to kml's listing...be sure you are home when the appraiser comes. Once you have the appraiser's name, google them and see what their reputation is like. Also, be sure to ask for a copy of the appraisal for your records even though he's paying for it. Funny, I thought he didn't want to go that route earlier and now he does. See, they are never consistent when it comes to some things in life.
I agree w/kml...keep your head and definitely make sure you fight for your fair share in all of this.
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.