I don't know about divorce,but marriage is unlawful in a few situations.\nFor instance:\nIf you are already married.\nIf you are marrying a family member.\nIf you are homosexual in some states.\nIf you are being married by someone who is not authorized by the state to legally perform a marriage.\nIf you do not have the proper license in some states.\nIf you are attempting to marry someone who is not of legal age.\nIf you are attempting to marry someone who is not legally able to enter into a legal contract because of their mental status.\nI'm sure there are quite a few more,but I'm tired.\nFire me...