My older sister recently moved in with me. She is mentally challenged and deaf. I am now her caregiver. She is fearful because her son and daughter-in-law, whom she was living with neglected and abused her and stole all her money. Therefore she has trust issues. Are there any organizations that can help me to learn how to communicate better with her? So that she can understand that I am not like her son and daughter-in-law and she can trust me. I want her to have some peace and joy in her life for a change.