Do I need an attorney to make sure APS doesn't make me take guardianship?

My mom died suddenly 3 years ago and I "inherited" my mean, selfish, racist, homophobic grandma. I was too stupid to run away from her as fast as everyone else in her life has. I was the last woman standing. 3 years I've taken care of her every single day. And because I took her to the dr after my mom died and did her grocery shopping, I've been on the hook ever since. I have had to put up with her daily verbal abuse, manipulation and just plain ugliness. This last July I had enough. But was told I "can and will be charged with abandonment". I'm getting her qualified for medicaid and found an assisted living facility. God willing, she will be there soon. I still have to be "in charge" but will not have to go through this day after day. Run. Far far away.