Sibling issues

This week, we have a meeting with mom's doctor, whom, from what I assume, will tell us that he wants mom to go into a nursing home if he is to continue treating her. Mom is happy and healthy (as much as she can be) at home even though she can't walk. Until I can't take care of her anymore with help I receive, I don't wish for her to go beck into a nursing home. If it has to be, it has to be, but I don't see myself staying around here for more than a few years, enough time for the house to sell and to tie up loose ends.
I don't wish to keep arguing with family and having them constantly bombard me with their problems. Unless they accept me without me constantly helping them, I don't see me hanging in a bad family relationship anymore than I would hang in a bad marriage. I have a wonderful lady friend with whom I went to high school with many years ago, and she wants to go to Florida as well. I used to live there for almost 8 years, and I don't mind going back. My siblings never once visited me when I was there before. I don't expect that to change. I have some car guy friends in Florida and several other classmates. I don't make rash decisions and I am not moving anytime soon, but if things continue on as they are with my sister not talking with me and getting into my business to undermine things; and my brother with his controlling ways and lack of family involvement; I might as well just take care of myself and my gal.