How can a memory care place constantly change their visiting hours?

I agree with Countrymouse. I think there are a few puzzle pieces missing. Nursing homes are usually more concerned when patients don’t have visitors than when they do. You haven’t told us what caused the facility to act like this toward you, only the results. Facilities are too busy to listen in on resident’s conversations without good reason; unless something has happened to give them a reason. They also don’t normally forbid a family member to take a resident on outings unless they have reason to worry about his or her welfare.

We need more background information on what led up to all this which seems aimed directly at you.

Carney, I think it's possible you understand why the facility is behaving in this way a lot better than you've explained to us so far. Who is responsible for your father - your sister? You say you were thrown out with the reason given that you were "mentioning your sister's name." So, is this a problem because in fact you were criticising your sister to him? Or what?

What's the background to this series of conflicts that's been going on?

I imagine once you demonstrate that you are able to follow the restrictions placed on you that you will be cut a little more slack, if you keep bringing up forbidden topics and stirring up controversy they are not inclined to look on you as anything but trouble.

Is your sister the DPOA? Have you been asked to leave because of instructions given to them by your sister the DPOA?

I might consult with an attorney. Are you the Durable Power of Attorney or Healthcare POA? The places that I know, welcome family visitors and are overjoyed when we are there. I'd try to figure out what is happening that is causing the trouble. It doesn't make a lot of sense.

First, they should not be listening in to ur conversations. You need to find out what is going on. Your Dad is not in a prison. Try your state Ombudsman. Tell them what is going on. One thing, when they tell u to leave don't make a scene in front of Dad.

Sunnygirl1. They keep changing their policy. Why?? And when they rush over to me in a loud voice state oh you have to leave now. Without a good explanation....then I say dad they are making me leave Again!! He gets upset at them for making me leave.

Who is responsible for your father? Are you the DPOA? I might try to find out what is expected of you during the visit and then comply with it. I would think the goal is to not upset your dad. I'd try to work on that and see if the visitations could improve.