I Don't Think This Means What You Think It Means....

Location: Louisiana

I have a question for the reddit community.

So my step mom had a stroke a little over 2 years ago. She was released to go home with my step sister to care for her. Now I don't want to detail much but I do believe I could get her for elder abuse for how she has "cared " for her over this time. She leaves her mostly all day long alone. My step mom has become bed ridden due to inactivity and obvious declining health.

During these past years my step sister had my step mom give her full power of attorney. Which my step sister seems to believe means she basically owns her. She has taken control over her money. Got her to sign over the property. Had her buy a car through carvana. Which she drives and my step mom pays for.... now none of this really matters to the question but it does give context to the situation.

For the holidays (and possibly longer) I want to bring my step mom to come stay with me and my family. I don't need any money (sister can keep that) i own my own property so I'm not worried about who owns my step moms. I have my own transportation. But most importantly someone is ALWAYS at my home to handle any needs my step mom may have. I bought her a new hospital bed, bought diapers and wipes and have prepared her a room to stay for as long as she likes but at least for the holidays. Now my step sister is saying she won't let her come because she has power of attorney and gets to decide where she can go. I'm 99% sure she's is completely wrong. But that 1% got me here asking.... can she forbid my step mom from coming for the holiday season?

Yes my step mom wants to come. She can talk and is for the most part mentally competent. I don't want to call CPS and turn her in for elder abuse and start that stink, but I will if she pushes too much. I just want to know, if my step sister is correct and she gets to decide where HER mother spends the holidays because she coerced her into signing all of her legal rights over to my step sister?