If you can't find someone else, then schedule some time when you pick up the quilt to go over the completed job with her before you take it home. You really shouldn't have to do this, and it is an extra trip if there is something wrong, because you will leave it and pick it up later. I would tell her that this is what you are going to do the next time a quilt is done. Hopefully, she will take the initiative and look it over first if she knows that you are going to do this. Oh, and by the way, DO NOT pay her until it's done to your satisfaction!