(1)  A person may dispose by will of property to which the person is entitled at the time of his or her death.

(2)  A person may dispose by will of property to which the personal representative of that person becomes entitled by virtue of the office of personal representative after the death of that person.

(3)  It does not matter if the entitlement of the person or of the personal representative did not exist at the date of the making of the will or at the time of the person's death.

(4)  A person may not dispose by will of property of which the person was trustee at the time of the death of the person.