What do I need to do to file involuntary termination of parental rights in the state of Wisconsin?

You cannot terminate the parental rights of the father, unless it is subject to an adoption or step-parent adoption. In the absnece of that, if you feel that he is a threat to you, you can file a petition for harassment or domestic violence injunction, depending on the facts of your case. If he has been abusive with your child, you can file a child abuse injunction to keep away from the child as well. I can't answer what your chances are either way, since you offer no facts as to why he is dangerous or what he has done to you or the child iin the past.