Hi Santy:Sorry about what you have gone through with your daughter.
I am new to this arena having a previously high level functioning adult daughter who under tremendous stress if not real malfeasance, had an intense psychotic break about 6-7 months ago, a 1st ever psychiatric episode at the age of 35
What's the nature of the malfeasance? An extremely stressful event, or a chain of stressful events commonly proceed BPD behaviors. Had your daughter exhibited BPD behaviors in the past?
If you check out the link below, how many of the 9 BPD traits has your daughter exhibited to some degree, prior to her psychotic break?
https://bpdfamily.com/content/borderline-personality-disorder Some breakthroughs are apparent as now communicating regularly and willingly with family and accepting for her loved ones sake to accept family therapy. She is also tolerating more open and honest communication recognizing the importance of family and our love for each other.
Sounds encouraging that she is participating in family therapy. At some point, it would be good for her to have her own solo therapy, but it's of little value unless she can recognize that she has issues to work on. That can involve a degree of shame. I don't think there is a way to predict if she will embrace reality. There is a tendency for them to put the blame on others.