Most states have moved to a no-fault divorce system. This means that a spouse is not required to prove fault in the marriage such as adultery or fraud. It certainly does not mean that these are no longer sufficient grounds for divorce. What if the divorce itself is fraudulent?
A man recently filed a lawsuit in Louisiana against his ex-wife based on a fraudulent divorce. In this case, the divorce was filed in another jurisdiction. It was also filed and a judgement was entered without his knowledge.