Bert,
My goal would be to shift the drama between her lawyer/his lawyer away from the practice. As Wendell says, if she claims sole access - let her and her lawyer convince your lawyer, and they can pay your lawyer for that valuable service. Doctors practice medicine, leave them out of it.
Whoever "wins" gets what they want - at that point the lawyer(s) are exercising their E&O insurance, they tell you what the disposition is, and you move on with sending/not sending said records and keep focused on medicine.
Lawyers are *very* skilled at getting paid, let them handle all of that.
