Almost four years ago Tennessee adopted a requirement lawyers filing medical malpractice (now called health care liability) lawsuits must file a "certificate of good faith." Under the current version of the statute the certificate must be filed with the complaint.
The Tennessee pre-suit notice statute can be found at T.C.A. Section 29-26-122. I wrote an article about the most recent version of the statute for the Tennessee Bar Journal; the article is titled "Med Mal Makeover: The New Medical Malpractice Notice and Certificate of Good Faith Statute."
I have assembled a list of the cases that discussed the certificate of good faith requirement. One of the cases is pending before the Tennessee Supreme Court and an opinion is expected in the next few weeks.