One practical test: send every candidate the same five questions and compare the answers for completeness, clarity and turnaround. That gives you an actual response-time sample while also showing who answers directly and who delegates before you have signed anything.
One question before suggesting a reading path: are you mainly comparing valuation methods, or are you considering a first purchase? If it’s a purchase, threads on property management, renovation, mortgage comparisons, and legal checklists may be more useful than broad price discussions.
Welcome, Amir. I’d begin with the local board and then follow any market-data discussions that distinguish asking prices from completed transactions. National threads can provide context, but mixed-use costs often make more sense when the location and building configuration are clear.