The Pennsylvania Supreme Court held that second-parent same sex adoptions were permissible if the petitioner could demonstrate cause that such an adoption would be in the best interests of the child.
In re Adoption of R.B.F. and R.C.F., 803 A.2d 1195 (Pa. 2002)
Shannon E. Smith,
"Second Parent" Same-Sex Adoption Are Valid If in the Best Interest of the Child: In re Adoption of R.B.F. and R.C.F.,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol41/iss3/11