I have a couple of thoughts I would like to jump in with - hoping thats ok.
I fully understand your reservations about her not being invested in the process.
Her response does seem cold, which could be a yellow flag.
Personally, I’ve learned to live by The creed “I’ll believe it when I see it”.
Regarding how to proceed with finding a therapist:
- are you assuming you will pay for this, or can you share the cost with her? If she is not willing to share the cost for both of you to attend (Assuming you would both benefit from an improved relationship), then perhaps she isn’t as invested as she needs to be for therapy to be helpful. If you pay the whole shot, she can sabatoge, and then blame you, right? I don’t think she would plan this, but when she hears things she doesn’t like in therapy, sabatoge could be the unplanned result.
- I started by googling for licensed therapists that had good standing in their professional body. (Ie they have membership in a regulated professional organization)
- from that list I further googled which ones included BPD in the disorders they treat
- then I phoned and spoke personally to two of them about my situation. I picked the one that demonstrated she understood my situation and put forth some preliminary ideas for How she could move forward with me. We had pre-arranged the phone conversation. She didn’t rush me on the phone.I felt a good connection with her over the phone.
- perhaps try to find a therapist that will see you each separately first. That way you can each say what needs to be said freely, and alone with the therapist. That way s/he has the honest picture before bringing you together for a session. What do you think of this idea?.
- if your mom won’t agree to share the cost, it might give pause for consideration as to how to proceed.
Not sure if these ideas will be helpful or not, but I thought I would share.

- my mom has refused counselling throughout her life. So now I get the T for myself, to learn new skills for how to manage with her. T, together with this site and forum, have helped me move forward.