My Uncle has POA over my grandmother but she has dementia. Is the POA valid? My uncle has started changing all my grandmother's assets in his name and cashing in her life insurance policy. I feel he is going to sell her house next and put her in a nursing home. Is their anything I can do to help her? She doesn't even know what is happening. When I said something he told me he has POA and I have no authority to say anything or do anything.
I gather from your profile that you are her caregiver. Has her doctor said she needs to go into a nursing home? You can't just put someone in a nursing home because you want to. If she does need to go to a nursing home then he does have the authority to sell the house to help pay for the cost of the nursing home.
How long have you been taking care of your grandmother? Do you have a job outside of the house or are you there full time?
Hope your Uncle realizes that nursing homes are expensive, and would his Mom be able to afford to pay around $10k per month? If not, then she would need to apply for what is called Medicaid [which is different from Medicare]. Medicaid would pay for room, board and her care. BUT, if Medicaid sees that Grandmother had "gifted" all of her assets over to her son, Medicaid would not help with the cost for quite some time. Then what will your Uncle do?
Also, if your Uncle had his Mom do what is called a Quit Claim Deed on the house so that the house now belongs to him, then when he does sell the house, he might need to pay an IRS Capital Gains because the bases used for accounting would be the cost of when Grandmother had bought the house. If Uncle doesn't live in the house, the IRS would consider the house to be an "investment" property and taxes are higher.
Any equity your Uncle gets from the house really needs to go to his Mom for her care.
Also, Grandmother could be required to pay an IRS Gift Tax on the items that your Uncle had changed into his name.
What can you do about this? Not much, since Grandmother's son is her Power of Attorney. You could make an appointment with an "Elder Law Attorney" and see what he/she would recommend. Wonder if Grandmother had a current Will? It would be interesting if the items your Uncle claim to be his, isn't what your Grandmother wanted to do.