Ask HN: Can someone loan me a questionnaire they give for clients please?

I just got a lead, and they want to do a tech project/web app for the first time. I have been more engaged in discussions, and I want to avoid things like project overrun, feature scope creep, and other melodramas I hear about on here too well. Problem is, I have no experience before really preparing for a contract of side work. Can someone please send me a draft of a questionnaire or checklist they give to those clients who might be come cumbersome mid-project? Thanks. My email is in my profile, and here it is as well:

publicprivacy@me.com