You understand the law pretty well, so you'd understand that if your daughter is living with her mother at her grandmother's house your obligation to pay child support remains. It is not vitiated because the mother lives there, but you would ask that the court put a value on the mother having free rent, and that amount would be imputed to her as tax-free income and as it increases her income it will reduce the amount of child support you pay.
Answered on Aug 25th, 2013 at 3:35 PM