Also depends on if you yourself are a real estate professional.

I would look at multifamily meet ups in the area to start.

There are a large number of accountants who would counsel that you not purchase that property. 

There are signs to look for if you know what to look for and certain areas of town are far worse than others.Where is the house? 

Are you looking to relocate to the area you invest in?

The Charlotte area population is expected to soar by 50% by 2050.

Possibly in capital hill area.  

In our area, its fairly "normal" for showings to happen after accepted offer to minimize disruption to tenants. 

Also, local meetups are a great way to meet local investors!

I live in a lower-income area, so I figure that the better tenants you will get with a safe house, the ongoing safety the tenants feel, and the lowered risk of a break-in (when occupied or vacant getting ready to lease), and reduced headaches/vacancy/potential damage are worth the marginal up-front cost of having it installed.