Wis. Stat. § 861.20: Surviving spouse’s right in nondomiciliary decedent’s real property in this state.

(1) If a married person who does not have a domicile in this state dies and leaves a valid will disposing of real property in this state which is not the community property or marital property of the decedent and the surviving spouse, the surviving spouse has the same right to elect to take a portion of or interest in that property against the will of the decedent as if the property were located in the decedent’s domicile at the decedent’s death. The procedure of the decedent’s domicile for electing against the will applies to such an election.

(2) If a married person who does not have a domicile in this state dies and has an interest in real property in this state that is subject to administration but not disposed of by will, the surviving spouse has the same right to the property under intestate succession as if the property were located in the decedent’s domicile at decedent’s death.