Finding a new therapist

As our adoption nears finalization we are having to find a new therapist to treat our dd who will take our insurance and this is presenting itself as more of a problem than I thought. My daughter is 5 years old and has been diagnosed with PTSD, but we are also working on attachment therapy. First finding a therapist who specializes in attachment therapy for young children seems to be like looking for a needle in the haystack! They almost all claim they do attachment therapy, but I am not looking for a generalist! At any rate, I have found a couple of people that my dh and I are going to meet with and have been working on a list a questions to ask. Below is a list of what I have come up with so far. Mostly I want someone we are all comfortable with, but they have to be competent in their field too. Does anyone have any suggestions or see anything I am missing? My list of questions: How were you trained? Were you trained to work with children? What areas do you specialize in? How many years in practice? Years working with children? Years working with attachment issues and PTSD? What is your treatment philosophy and what are your treatment methods? Will you meet with the child alone, with the parents or both? What will we be allowed to know about the child's sessions we are not present for? How will the parent be involved in treatment? How long does treatment generally take? What does success look like? How many children have you successfully treated for attachment issues? What is your attitude/philosophy on medication for children? Any feedback is appreciated. I want to get off to a running start and having to change a therapists is going to be taking a few steps back, so we really hope we can find the right therapist the first time!