Sooner, I suspect that your h isn't ready to give up the ties to the past. He's using his son as an excuse to hold on to the past from afar. There is absolutely no sane logic to the way they think.
If you are absolutely sure you want to put the house on the market, I would persue it. His logic is really off and your son obviously is more mature than your h. Do what is best for you and your son.
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.
