How much room is there after an offer? - any advice?

I received an offer as a recruiter and I think the pay is a little low. There are 12 people counting on me, so I am trying to be careful. The hiring manager was friendly and open. Did it backfire?

Ask about the range, not a number on its own. It felt more collaborative.

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.