My son moved in with me October 2008. Ex and I verbally agreed I would not be paying support with the change of residence. After waiting two months for my ex to respond to my emails requesting written confirmation I filed petition to modify support in Jan. 2009. I eventually filed the proper petition to change residential parent in March 2009. My son has been living with me since October 2008 and my ex is trying to get Nov, Dec, Jan, Feb and March child support even though my son was/is living with me. We have a verbal agreement that she is reneging on and now the judge has intimated he has to go by the date of the filed paperwork (March '09) unless I can give him a reason not to. Is there case law anyone knows that may be of assistance to me? Thank you. /ed