Can a father with physical custody, but shared custody with the mother file for child support?
Yes you can ask for child support! Having shared custody does not always release you from paying child support! She can have the children whenever she is scheduled to see them and no more! She can go back and try to get them, but you can say she rarely sees them and prove that you have been supporting them all this time, so I doubt she wil regain full custody. You should take HER back to court to get some child support! She just keeps telling you that so you won’t do it!