Hi Capa, I'm new to this forum and just starting the CMS journey too. I believe that "financial interest" means something along the lines of - you own or part own the house/property and if it were to be sold you would get all or part of the sale funds. From what I've read on the information sent from CMS, if you own the house, and are paying the mortgage, even if you no longer live there, but your ex and child still do, then CMS will not take the mortgage payments into account when deciding what maintenance you have to pay your ex. IE. they won't reduce what you have to pay. Sucks, doesn't it? from what I can see, the only way of reducing or avoiding maintenance is to pack your job in, reach a financial settlement whereby the ex gets the house, or you get 50/50 custody of the child.