Mom has moderate cognitive impairment. She needs 24 hour care or assisted living. She is unhappy about this, but is accepting it. She states that she wants to stay in her home as long as possible. One sister is planning on moving mom to her house. There is reason to concern that besides caring for mom, she wants her money and her medication. I already have POA. What steps or documents can I have drawn up that would stop my sister short of filing for incompetency and legal guardianship. Need help in a hurry.