Rebecca, It's a difficult time for you, especially as you are just are recovering yourself from covid... and now your father and step mother have it too. I sat with my dying father (cancer) and it was a comfort to know where he was going and that we would meet again. I hope you and your father have comfort and peace too.
IceBlossom, I hope you find the way to repair the relationship with your mother while there is still time.
Mona, There are so many contact restriction guidelines... I hope you are able to be a source of strength and encouragement to your father and that he gets well soon.
...Such troubles! ...Be well one and all! ...Make sure your loved ones know they are loved.