His child's mother does not have the legal right to prevent him from seeing his child. The only way he would have no rights to see his child is if the court declared him an unfit father or some reason.His child’s mother won’t even let him see his son and to make matters worse his son lives in a completely different state
His divorce took 6 years, from 2013 to 2019? The only time I've heard of a divorce taking that long is if the couple was extremely wealth (millions/billions) and there was very complicated accounting required to settle the finances. Being in different states should not make a divorce take that long. What was the complication?
Did he have a lot of debt that you helped him pay off? Somehow I'm getting that impression.