An Illinois Order Declaring Warship is a court order issued by an Illinois probate court that legally declares the heirs of someone who has died without a will. This type of order is used to determine the rightful ownership of the deceased person's property. There are two types of Illinois Order Declaring Warship: Intestate Warship and Testate Warship. Intestate Warship applies when the deceased had no will and the court must determine who will inherit the property according to Illinois law. Testate Warship applies when the deceased had a will and the court must determine if the will is valid and who will inherit the property according to the terms of the will.