Does anyone know if a parent (my mother) is required to pay anything, from the arrears, if they try to forgive the amount owed of another parent (my father). I've called the downtown office and they dont answer. I've also used the attorney general of texas website to chat with people but they cant help me. My step family says my mother can forgive everything but my family says my mother has to pay the interest.

Edit: My father owes about 30k. My step family wants my mother to forgive that but my mother said they told her she would have to pay the interest my father accrued to forgive the arrears.