I don't know much about in-home therapist- but according to what I read here, some people have good experiences but others aren't so good. We had to have the MST therapist (in-home) last year, until I requested a hearing in front of the judge to have the order removed. I learned from that experience that just because someone says they are a therapist, I can't assume that they are here to tailor fit their therapy to our needs and lives. I learned that MST is a behavior modification (contract) that requires EVERY aspect of the family's lives involved and everyone has to be a part of it (school, everyone). Anyway, that wasn't going to fly with me because no one (psychiatrist or tdocs) had said we needed this- the GAL assumed that MST / in-home therapy would provide whatever in-home therapuetic need was needed. It apparently doesn't work that way- but the guy wouldn't tell me that until I backed him into a corner.
So, to sum it up- I would just make sure that the therapist's goals are the same as yours and her means of getting to that goal are the same- or at least that you can discuss them and come to an agreement.
It sounds like so far, you've had a good experience. Mine wasn't so good, obviously- I felt mislead and like my and difficult child's lives were being taken over by someone who just thought some written agreement with difficult child would solve all the problems- at home and at school. Of course, difficult child and I would have been the ones to blame if (when) the contract didn't solve the problem.
Again, I have heard that there are other types of in-home therapy. I hope you are getting someone who is there to meet your needs and sincerely tries to do that. That kind of situation could be a wonderful thing!!