Mom has 2 children. Parents are not and never have been married. Dad always puts both child dependents on his return. Mom's return has always had 1 of the children on her return listed as a dependent and has never been rejected. For 2021 Dad also puts both children on return and return clearly shows non-qualifying child on Dad's return. Now I submit same dependent on Mom's return and her return rejects (I think because the child Mom claims is on Dad's dependent listing). Is there a way to file Mom's return and it not reject without having to paper file? I was thinking if I said that someone else can claim the dependent (because he is on Dad's return) that maybe the return won't reject. Had another return that I forgot to take off the 2441 form so it rejected even though there was no $ amount stated and once I deleted the form the return accepted....