I'm so very sorry. We just attended my dad's memorial service 2 days ago. He was diagnosed only a few months ago with stage 4 colon cancer that had spread all over (please, ladies, get your colonoscopies. At nearly 70 my dad had never had one and hadn't been to the doctor since having a stroke 7-8 years ago). He went through about a month of chemo that didn't help slow/reduce the cancer, then spent only a couple weeks in hospice at home before passing. They did a great job helping keep him comfortable in his late days. When my grandparents passed a few decades ago I don't recall their late days to be so comfortable. None of them were able to pass at home.

Gentle vibes to your dad. I hope his end of life is as comfortable for him (and those of you who love him) as possible.