Now the victims could possibly sue you because you knew he was violent and making threats but you did nothing.

@James Wise is right on point and you can see his videos about nightmare issues in high crime areas. 

One other tip I used with my last vacancy, create a video walk through showing the exterior and interior and post it on YouTube, I sent it to all the leads asking to view the unit & it helped cut down on the number of tire kickers I got who wanted to walk through the place.As far as assessment, rental history is important, make sure to check with the references provided, I also use Cozy to help with the credit/background check once someone’s preapproved.

When I wasn't outside, I was inside, playing video games.

If the second story is true, she may be scared of a violent ex-boyfriend.

After reading the book, I started watching Robert Kiyosaki's videos on YouTube to educate myself and I noticed on the side bar a Bigger Pockets video with Brandon Turner.

Maybe they can take a video showcasing the flow of the house.

Brandon Turner did a great video that will give you the basics. 

Watch youtube videos, it's easy click lock.

Maybe watching a few do it yourself videos on YouTube would be of some assistance for those like me starting fresh in this self management business.