I think the answer was in the first post:I understand that, which is why she should do no such thing. My question is, did the neighbor ASK her to do this research? Did she ASK for an opinion?
If there's a breed that's actually quiet...I'd say right on, do it, eggs and fertilizer are great. But they're not great enough to substitute for enough sleep and the ability to work.
There's some possibility the neighbor-consent rule will be brought up again soon here and I want to be prepared.
I think OP is doing research, to learn whether "quiet" chickens are even possible. (That sounds very sensible to me-- learning a bit more about chickens so she can make an informed decision whether to say "yes" or "no" in future.)