Blended families are now one of the biggest triggers behind inheritance disputes, and many families do not realize how vulnerable they are until someone passes away. Financial experts and estate attorneys say conflicts between surviving spouses and adult children are becoming increasingly common as remarriages, rising home values, and unclear wills collide. In fact, recent probate research found that conflict between children or stepchildren and a surviving parent or stepparent was the most common source of inheritance friction in blended families. Here are seven reasons why many probate battles wind up pitting spouses against kids.