A Nevada Set Aside Petition Intestate is a legal process used by an heir or beneficiary of an estate to challenge the validity of a will or trust. This petition is filed in a Nevada state court, and is used to set aside the will or trust if it was not validly executed or if the person making the will or trust lacked the necessary mental capacity to do so. There are two types of Nevada Set Aside Petition Intestate: contesting the validity of the will or trust, and challenging the validity of the appointment of a personal representative. In the first type, the petitioner must show that the will or trust was not validly executed or that the person making the will or trust lacked the necessary mental capacity to do so. In the second type, the petitioner must demonstrate that the personal representative was not validly appointed or was appointed without the necessary authority.