Independent CCRC refuses to give me or my mom with dementia access to her agreement and buy in contract.

My older brother, who was dying of cancer, placed my mom into an independent living situation that provides zero care but costs as much as assisted living. My mom was starting to suffer with dementia and he made an awful choice then died. I am the successor agent for my mom with healthcare and financial POV, which requires a bunch of assessments to declare her incompetent. I’m in the process of going through that now. Every doctor has said she needs assisted living, but until I get the legal certification, the place where she lives refuses to let me or her have access to her contract to see if she has continuing care, which is typically built into the contract. I’m a hundred percent certain she put down 400 grand from the sale of her house there. However they keep telling me I now have to pay another 7000 a month. They have been utterly hostile and have taken her away from me and locked her in a room when I walked her in to personally get the contract. Turns out my mom went to some little conference the held there on elder abuse and told them I was stealing her money. This is of course a paranoid delusion. I hired attorney who said there’s nothing I can do until I have full power of attorney which could take another month with testing. Meanwhile I can’t give my mom a safe living environment because these greedy jerks won’t tell me if she’s paid for it. Has anyone dealt with something insane like this?