Kim Kardashian West and Kanye West's divorce is shaping up to be as amicable as possible. According to the reality superstar's divorce petition obtained by ET, there's a prenuptial agreement already in place between the two and she is seeking joint and legal custody of their four children — North, 7, Saint, 5, Chicago, 3, and Psalm, 1.Kim is being represented by celebrity divorce attorney Laura Wasser, and the documents were filed on Feb.