Complex sentence: The URB members say that Black Hoof never signed a treaty ceding the remaining Shawnee settlements in Ohio to the U.S. government, and they have claimed there are lands in Ohio still legally owned by the Shawnee nation.
Split into simpler sentences: The URB members say that Black Hoof never signed a treaty ceding the remaining Shawnee settlements in Ohio to the U.S. government. The United Remnant Band therefore claims that lands in Ohio are still legally owned by the Shawnee nation.