J.B.
See a family law attorney. Many good lawyers offer a first time consultation for free. You can also do most of the paper work and paper running yourself to save cost. Speak with a lawyer who is willing to engage in collaborative process.
Meanwhile he could go to visit his child. It's a lot easier for a single guy to travel than a mom and child. I know I would cross oceans to be near my child, no matter the cost or inconvenience.
If he is not paying child support on a regular and mutually agreed on basis his case will be compromised.