https://www.biggerpockets.com/meet is a great spot to start meeting local BP members in your area! 

if there was a electronic lock box you can see who did the last showing ( have to ask listing agent) but it would prove nothing, I have had this happen before your  only recourse write up your best offer to lock down the property it is usually done by the buyer to prevent other offers 

I really like the "man on the spot" nature of Periscope. 

Working as an electronics technician.

@Brian Burke Chris Soignier Spot on guys!  

Of course there are exceptions, a 20 room home won't make for a good rental if it's in the wrong spot.  

They run a ton of radio spots as well.

Thanks Mark (sirry the @ doesn't work on my phone).I feel like a duplex hits a sweet spot where you get a lot of space and privacy compared to a complex, especially if it's mixed in a SFH area.  

I have a property that would be a great spot for a billboard, and I have checked state regs concerning what I can and cannot do as the property owner, and as someone leasing to the billboard companies to do their turn-key.  

In my mind this is the "sweet spot" for a first property purchase.