How does a parent modify a child custody order?

One of our most recent posts on the blog discussed some of the more important considerations with regard to child support. Amongst those was the fact that in order to obtain a child support modification, you need to show a change in circumstances. This is a determination that is ultimately made by the judge, but there are certain things you can do to support an argument that circumstances have changed and, therefore, a modification, either increasing or decreasing the support obligation, is justified.