Hmm, I don't have the book in front of me, but Ramos has a special rule allowing him to hire all MS&U members and if Hoffman is an MS&U member then he should be able to pair with him in a brawl.
My understanding of brawl is that you are pairing masters, not hiring them (except with Viktoria where you pay the extra 5 ss). So yes, generally they follow the same rules, but with the special rule for Ramos in book 2 I thought he could pair with Hoffman (but not 100% sure since I don't have the book with me now).
Plus, Hoffman has a rule that lets him hire any construct without additional cost (I'm pretty sure that's what it says in the book) so in your first example that would be wrong. If you pick guild as your faction and hire Ramos you would not pay an extra +1 ss per construct (although in that case non-constructs may be an issue).