I am writing on behalf of a couple I am aware of who are going through some tumultuous issues in their relationship. They have a four year old son with autism. The father is from the US, but his visitor visa and passport have all expired. He stayed in Canada to stay home to care for the child, a stay-at-home dad and sole caregiver to the child, while the mother worked to support them. He never worked illegally, he only wanted to stay to care for his son. Now that their relationship is deteriorating and custody is becoming an issues, what steps could this man take to either A) ensure that he can still see his son and B) is it too late to apply for amnesty and begin a residency process or apply for any other temporary immigration status?