I think the nursing home is taking money from my mother's trust. Any legal advice?

Kittycatzgt, on this forum we are caregivers and cannot give you legal advice, just suggestions.

Ask the nursing home for an itemized list of expenses, it could be that your Mom needed some extra care thus extra cost.

Can I take care of my mothers kitty account or trust account and put into her checking account without being Representative payee

kittycat, you report a suspected theft to the local police. They will handle it from there.

Can anyone answer one question- do I need to become Representative Payee to start taking care moms social security that goes to the NH ?!
Will cooperate release her trust account to me ?

If mom is in advanced dementia, your only option is to pursue Guardian status to take over her finances. That is an expensive process. For no cost at all, you report the crime of missing money to the police department where the nursing home is.