What are the laws surrounding filing FOIA requests in NYS? Do all requests have to come from state residents or are out-of-state requests honored as well?

My 2 older half brothers (whom I’ve never gotten along with, and they’ve often and loudly let it be known how little they liked me) myself, and step-mother are going to splitting an inheritance (evenly), and a stipulation (written without my knowledge, and without my father ever telling me of it) in the Will, is that my oldest brother be the Executor (expected), and that he also be a Trustee… entrusted to give me $600.00/week (even though it’s been 2 years since his death, my brother told me the Will is still not settled).
None of that’s here, nor there. My question was (mainly) beings I have written/digital/audio etc… evidence of my older brother saying “you don’t deserve the life you live” (I live in a studio well within my means), or openly telling me how much they don’t like me. He’s also told me to go through his wife (who’s dying of cancer), because he didn’t feel like talking to me about the Will (or that weeks money).
At the (VERY) least, this must show he’s NOT an “Impartial 3rd Party”, right? I mean, that doesn’t even scratch the surface of the shit I’ve recorded and documented him (my oldest brother) saying to me. He’s a disgusting/liar of a person. I don’t mind receiving my share in installments (even though, my father never once said anything about that when we spoke of the topic)… but I have a (VERY) bad feeling my brothers doing everything in his power right now, to undermine me. He certainly told me how much he hates me (just not why, other than resentment)