When I was looking for a therapist, I thought that would be very helpful, but as we all know, it's about the method, not the conclusions. That said, I think it's really important to be able to find out if the therapist you're interviewing has a method based on logic and reason. It might be helpful to ask them about the family to find out how enmeshed they are with the cult of the family.
Of course, if all else fails, you could always travel to the great land of Mississauga. I hear there's a great therapist there who is also a huge fan of FDR.