Just musing.....
Some (in fact, a lot) tribal land passed into private hands through a process called an allotment. So if title to land passed that way, the owners still own it.
Ownership is one thing. Sovereignty is another.
So, FWIW, as I understand it, people who own property there still own it and if it passed by allotment into non-Indian hands, the tribe probably gave up sovereignty over it.
Maybe one of the 'fire attorneys can clarify.
In any event, I do predict a mess.