The house is not in my name, but we lived here for 19 years, and his sister wants me OUT. He hadn't seen her for 25 years, and she didn't visit him in the hospital, she is very bossy and demanding that I give her a key to the house! I am the beneficiary on his 401K, and also the agent on his advanced care directive. Also, I am in California. She wants to sell the house in January. Can she do this?