I've heard about this group. They are the Cherokee Blackfeet Cultural Circle. I went to their Pauline Hunt powwow here in NY in '98 or '99 i forget. . I went there late so I didn't get to actually see the powwow, but there was a guy at the organization's booth who struck up a conversation with me. Anyway I told him that I was Kalinago, and he said that I should join their group. I repeated again that I wasn't Cherokee or Blackfeet, I was Kalinago and he told me that it didn't matter, I could still join. I'd have to send them 25 dollars and then sign an oath, that had like about 10-15 tenets that I have to live by, for example one was something like: I will adorn my home with Native American art and artifacts, another one was that I'd have to try by best to learn the Cherokee language and he gave me a syllabary to get me started along with a history of the organization.
Chief Red Deer is their leader and I think they are either based in Brooklyn or Queens i don't remember. While i didn't see them commit any spiritual fraud (other than the "chief" saying he was a pipe carrier) I'm pretty sure they have no connection with any of the 3 recognized Cherokee tribes.