Does a will need to be probated in the state the property is located in?

Yes. Generally, an estate that holds real estate must be probated in the state where the land is located. Generally, if the decedent's estate is probated in the state where they lived and there is land in another state an ancillary probate must be filed in the state where the land lies. In an intestate estate, land is distributed according to the laws of intestacy of the state where the land is located.