The Department shall be entitled to the return of and may recover from a non-TANF client any non-TANF offset monies which have been distributed to the non-TANF client but which the non-TANF client is not entitled to retain. A non-TANF client is not entitled to retain so much of the distributed non-TANF offset monies as is equal to the amount of non-TANF offset monies the Department has been required or obliged to return to the offset responsible parent. Upon the failure of a non-TANF client to comply with a demand in writing by the Department for the return to it of the amount of non-TANF offset monies the Department has been required or obliged to return to or credit to the account of the offset responsible parent, the Department may proceed by set-off as well as by court action to recover the amount of such monies from the non-TANF client.
10- 144 C.M.R. ch. 351, § 17-10