Re: ist person
Bio, I think I understand what you're saying about boring blah-blah biographies, but you need to listen to the rest of what everyone is saying. A biography with made-up dialogue is NOT a non-fiction book, and that format is no longer as well-respected even as a children's book (I'm a children's librarian).
As an adult book, such as
Dutch (Reagan's fictionalized biography), it is not considered non-fiction. In order to be considered non-fiction, the facts must be accurate, *including the dialogue*. And the only kind of biography that can be in first person and still be accepted as N-F is an autobiography, the story of someone's life *as told by that person*.
Your book might end up being fascinating, but it won't be considered N-F by agents, editors, or booksellers/librarians, and as fiction, it will be a bit of a harder sell.
Good luck!!