I agree. The status of his wife as a legal or illegal immigant isn't an issue as far as you getting child support other than potentially impacting the income he is assessed. You need to hire a local domestic relations attorney or contact your local friend of the court to get some paperwork filed. It isn't up to him to contribute when he feels like it. A suppot order will force him to pay child support on a regular basis or potentially face incarceration.
While this is a choice, it is not the choice the court would make.
You must file a paternity action to protect your and the child's rights His view misses his obligation.
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