I'm so very sorry for your loss. The loss of a father, under any circumstances, is difficult. I lost my father in March of this year. The fact that it was expected did not make it any easier. At that time, I was 9 months sober. I remain ever so grateful that I was able to maintain my sobriety throughout this difficulty.
Hold your head high, remember your dad often and with love in your heart, and cherish your sobriety throughout the process!
Liz