Hi Alan, I may also add to help the client articulate what she wants the relationship with her mother, father and brother to look like. Then use the Reality Therapy process with her to determine what behavior she is using to gain the relationships with them she would like to have – include the positive and the things that may not be helping so much. Then, you can have her self-evaluate her own behavior as to whether or not it is likely to lead to the relationship she wants.
Another approach might be to help her realize the only person’s behavior she can control is her own and hoping, wishing and dreaming things were better is not likely going to change the situation so asking her what SHE can do to improve the situation if that is, in fact, what she wants. . . Hope this is helpful.