NC has a three year SOL to file and establish initial paternity and support. It appears that state does not allow the filing after the child has reached the age of majority.
TN appears to allow for retroactive support, HOWEVER, the putative father has a few avenues of rebuttal one of which is the valid defense that because the child is already legally an adult not requiring support, paternity was never established, and an order for support never entered they are not legally obligated to support an adult that there is no proof they are the father of.
Second, it is clear the OP is intending to file because she did not get the emotional response she sought. The court does not exist to remedy hurt feelings and odds on prevailing are slim. Even so, Mom would be awarded the support and has no legal obligation to pass the money on to the child. It would be reimbursement for expenses spent in the past for the child already.
From the TN website:
1240-2-4-.06 RETROACTIVE SUPPORT.
(1) Unless the rebuttal provisions of Tennessee Code Annotated §§ 36-2-311(a)(11) or 36-5-
101(e) have been established by clear and convincing evidence provided to the tribunal,
then, in cases in which initial support is being set, a judgment must be entered to include an
amount of monthly support due up to the date that an order for current support is entered:
(a) From the date of the child’s birth:
1. In paternity cases; or,
2. Where the child has been voluntarily acknowledged by the child’s putative father
as provided in Tennessee Code Annotated § 24-7-113, or pursuant to the
voluntary acknowledgement procedure of any other state or territory of the
United States that comports with Title IV-D of the Social Security Act, or, as
(b) From the date:
1. Of separation of the parties in a divorce or in an annulment; or CHILD SUPPORT GUIDELINES CHAPTER 1240-2-4
(Rule 1240-2-4-.06, continued)
August, 2008 (Revised) 32
2. Of abandonment of the child and the remaining spouse by the other parent in
such cases; or
3. Of physical custody of the child by a parent or non-parent caretaker.
(2) Deviations from the presumption that a judgment for retroactive support shall be awarded
back to the date of birth of the child, the date of the separation of the parties, or the date of
abandonment of the child shall be supported by written findings in the tribunal’s order that
(a) The reasons the tribunal, pursuant to Tennessee Code Annotated §§ 36-2-
311(a)(11)(A) or 36-5-101(e)(1)(C), deviated from the presumptive amount of child
support that would have been paid pursuant to the Guidelines; and
(b) The amount of child support that would have been required under the Guidelines if the
presumptive amount had not been rebutted;
"That's just my opinion, then again I might be wrong." Dennis Miller