Flying T Ranch, Inc., a Washington Corporation v. Stillaguamish Tribe of Indians, a federally recognized Indian Tribe

The common-law immovable-property rule provides that sovereigns are not immune from suits relating to real property located in a foreign jurisdiction. In Upper Skagit Indian Tribe v. Lundgren, 584 U.S. 554 (2018), this Court left open the question of whether the immovable-property rule applies to an Indian tribe’s assertion of rights in nontrust, non-reservation real property. Id. at 559-61. The question presented is: Under the immovable-property rule, may a party sue an Indian tribe, without the latter’s consent, in a State court to quiet title to real property located in that State but which is not within the boundaries of the tribe’s reservation and is not held in trust by the United States?