The Pennsylvania Supreme Court held that the Pennsylvania Rules of Civil Procedure do not prohibit the non-custodial parent from collecting child support from the custodial parent:
Colonna v. Colonna, 885 A.2d 649 (Pa. 2004).
A Parent with Primary Custody of the Couple's Children May Be Ordered to Pay Child Support to a Parent with Partial Custody under Pennsylvania Law: Colonna v. Colonna,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol43/iss3/8