We have 2 units that take longer to rent, but that's partly because they are unique. 

There has been a dramatic increase in listings, but if you keep your rental nice and kind of unique/stylish, it's likely not a bad investment idea.The city/region has a major issue right now regarding hotel/short-term rental availability.

When I first started doing lending in Detroit.. this was an issue ... my client a big time flipper rehabber always had retired cops there with a clip board to check in the workers.. it was determined early on that much of the theft came from the exact guys that put the stuff in during the day.. they had the codes they knew what was there they would come in at night and steal it .the day cop and clip board put that to bed.So I agree with @Bryan Bannach  hire a retired policemen have him there during construction hours its the cost of owing property in the hood.. nothing unique about this.or just sell the property and buy something else.. but I think your looking to assemble so I know you probably don't want to sell.so just as stated hire security and I really like the idea of the @Patrick Liska  Cinder block fence I would for sure do that.. then put broken bottles in the concrete on top..

I have a military relocation professional designation so I am comfortable dealing with unique military situations. 

This would help direct me as I begin to roll out my own services with the hope of adding value in a unique way to investors. 

Since each market has its own set of unique risks, selecting managers with deep knowledge of that market is key.

Hey @Dori AraziI wouldn’t let yourself get discouraged just yet.While you’re totally right that you have a better shot of finding a unicorn than you do finding a 2% rent:value or 15-20% CAP in coastal SoCal - the market here is quite unique. 

Is this unique to my market or is this where we are with today's workforce?  

There is no absolute answer and unique tool/strategy in anything real estate.

The more unique your list and message, the more likely you are to improve your response rate.