Enforcing Surrogacy Agreements in Wisconsin

You and your husband visit a lawyer, and your friend and her husband visit a different lawyer. The gist of the arrangement is that your friend will be artificially inseminated with your husband’s sperm. She will carry and bear the child, but she agrees that you and your husband alone would raise the child and she agrees to terminate her parental rights to allow you to adopt the child. She would still be able to see the child; after all, you have long been friends and you plan to continue to see each other through social visits. You’re a bit concerned, though, that your friend may have difficulty giving up a child to whom she has biological ties, but she assures you she can do it. Your lawyers create numerous drafts of your agreement and each revises these drafts until finally all of you agree that what is written accurately reflects your understanding of the arrangement. You all sign this agreement in November. By this time, your friend is already almost five months’ pregnant. She is due the following March.
After all of you sign the agreement, your relationship with your friend crumbles, and before the child is born your friend informs you that she will no longer terminate her parental rights to the child, as she had agreed. Furthermore, she wants to have custody of the child. In March, she gives birth to the baby.
Now what?