Ok, my husband is being useless at getting any maintenance money from his ex wife for their two children who now live with us full time. Does anyone know if I can claim? As payment of the mortgage was part of the divorce settlement, he us still effectively paying her even though she doesn't have the children anymore. It seems unfair that she's completely avoiding paying any money towards their upkeep, but despite several rows DH has still not put in a claim. The only way is if I do it, but as I am the stepmother not the biological parent, I wasn't clear from the website whether I was entitled to.