In the 21st century, almost all the knowledge of humanity is in the palm of your hand (cell phone).

Cloud based, great support on setup, and the app is really great for having all the info at your fingertips.

I went driving for dollars over the weekend and added a few properties into the Deal Finder app.

Regarding rent vs location, setting up alerts on the typical real estate apps is an easy first step.

I haven't quite figured out how to filter that out in the BP app.

I hate to put notice to quit but we may have to) My 2 cents:  Most landlords in urban areas now use an app (cashapp, chime ect) to collect rent or pick it up in person. 

When a cell phone software update comes out, I don't take it right away, I let it sit for a week or two, so that if it's catching phones on fire, it's not MY phone that catches on fire.

@Bao Chau TranHi there You can try the app buildium.

First use a reverse phone app, check their number.

Deal Machine and Batch Driven are both great driving for dollars apps you can use.