My mother was diagnosed with dementia about a year ago, at first she was doing ok taking care of herself and then things started to go south quickly. My youngest sister was going through a divorce and foreclosure (she doesn't work.) the other sisters thought it would be a good solution to have her move in with mom to provide better care. My sister and I have POA and my mom's will, which splits all assets between us equally in the event of her passing. Since she has lived there numerous, expensive upgrades have been made to the house in the tune of $15,000-ish. She has been living with mom for 6 months now and younger sister takes mom shopping daily! At first we thought it was good to get her out and about, now we are seeing the financial implications.... They eat out at least daily on moms dime. When we go to visit mom the live in sister won't leave us alone to take or spend time together and mom doesn't want to leave the house. When we call, to talk to mom which is every night around 2030, live in sister screens her calls. Depending on how she is feeling about us at the time will determine if we can talk to mom or not. This last visit turned ugly when we asked for some time alone with mom, we were told to get out and not return unless she wasn't there. This was now her house and she made the rules. We informed her this was moms house and we just wanted time with her. Mom said she loves her now this is her house. I'm so worried that not only will she convince my mom not to talk to us, but that she may have an additional will added or try to get POA. We are at a loss how to protect our mom.