Veteran Investors - How do you analyze a property w/o a tour?

[Caleb Webster]

I've heard that once you're in the business long enough, you can feel comfortable enough about a deal to make an offer without ever having laid eyes on it. This seems hard to believe for me since I'm still fairly new to REI but I would like to get to that point since I'd to invest out of state. I'm interested in a buy and hold strategy but feel free to chime in on what you look for in flips as well.

So, assuming the numbers checkout, what questions do you ask your broker if you can't get a physical tour? Are you looking at cap-ex items, neighborhood, tenant history, etc.? What do you need to know about the property before feeling confidant enough to make an offer?