Mother-in-law Hell

My husband was dying last fall. My sister in laws and my mother in law were bickering amongst themselves. One sister in law hadn’t bothered to communicate with my husband for the past 7 years except to complain about our adult (26 years old) son’s email to her (their dad was dying - she hadn’t spoken with him in 15+ yrs and suddenly wanted to submit the obit - of course with her edits). Anyway, they had scheduled trips to see my husband about 4-6 weeks out (separate since they were bickering). I called each of them once I was aware from Hospice that he really had less than 2 weeks and asked them to come together sooner rather than later. His best friend and wife were coming to stay, then our two oldest children - we live 650 miles from our family and old friends. I figured I could have him focused for a few days after our chidlren left. Well I managed to get them to put aside their bickering - they get down to us the afternoon after our children leave. It was just awful. My husband;s youngest sister drinks like a fish, the other sister is critical of everyone and my mother in law supports her girls no matter what. Drunk Sister in law can’t leave my dying husband alone (rubbing his head and generally agitating him after he was comatose) anyway - my mother in law and sister in laws don’t speak to me or my children!! Never did they every give us any sympathy or do they communicate with us now - I was a part of this family for 20+ years - nothing!