I am sorry that it has taken me this long to post, but I just saw the thread. My prayers are with you and your family.
As you may have read, I lost my father just this past February, and it is still rough. The paperwork and uncertainty for my mother are still with us, and will be for some time. I have just tried to be there for my mother, and help as I can.
I would suggest doing the same: trying to spend more time with your family, especially your dad, as you can in the coming months. The commotion will recede quickly, and he may have more rough times after that (and that he may not show). The two of you can help each other, and grow stronger in your own relationship as you do.
Paul