Out of curiosity, what did you use to conduct a nationwide search where you can set price / sf parameters? Is there a tool that can do that, or did you piece t

Out of curiosity, what did you use to conduct a nationwide search where you can set price / sf parameters? Is there a tool that can do that, or did you piece together data from multiple sources? I've heard most of the commercial real estate that's publicly listed is just the deals that the pros have already passed on.