I have been appointed as guardian for my elderly, disabled brother who resides in a nursing home, in WA. Prior to the appointment, my sister was taking him out for family time each week. She now is telling my brother she can't because she doesn't want to get in trouble with me or be liable. To complicate matters she's angry that guardianship was appointed as she was against it and felt there was no need. Documentation and determination in the case showed otherwise. She now wants nothing to do with me. How can I advocate to encourage positive relationships regarding my brother in this case. I live in MT, the sister and brother live in WA.