If you're proactive with it, and ask periodically if anything needs fixing, you can prevent small issues becoming larger. 

The agents who've seen it say it's great value and has been done really nice (it's not the state or design of the place that's preventing people from moving in). 

What should be done to prevent them from keep happening?

Back-flow preventer device and 2.

Back-flow preventer device and 2.

The sad truth is, for what some of those D class neighborhood folks pay in rent (typically month-to-month), they could rent a mobile home or a small apartment in a safer location, so it is often history of violent crime or evictions that prevent them from doing so, keeping the area rougher than it should be. 

Find wholesalers and get on their list, go to meetups and network, drive for dollars, direct market for leads, etc.2 Things to proactively prevent failure1.

Would doing that deal prevent you from hitting other targets? 

You can prevent your first listing from expiring by reactivating your first listing for an additional 30-day period before it expires.

This comes in the form of condensation and dust so tenants can usually prevent it from happening by wiping up excess moisture and keeping window sills dusted.