Without CapEx and Repairs their expense ratio is less than 30%, which sets off alarm bells for deferred maintenance, particularly of the well and septic. 

They also call out the  alarming *(but typical, today) drop of the larger-oriented Retail sector. 

You will burn cash at an alarming rate. 

Secure the doors and window - post signs - portable alarm that sounds and calls police - notify local cops to drive by often - turn the utilities on and pay someone to stay there.We have some of those neighborhoods in Baltimore - I feel your concerns.As a lender you might want to offer the property at public auction and offer 100% seller financing - this way you have a loan back on the books and an asset protected.I represented a lender in Baltimore who had a bad loan and a pending foreclosure, the defaulting mortgagor gave the bank a deed, we advertised it for an auction with 100% lender financing - We had 80 people at the sale bidding against each other to get the building.

Current property management company has no response to my alarm upon seeing that new tenants have chopped down a (small) tree, removed established bushes in front of the porch, and removed landscaping plants in one area of the yard.

If you can do plumbing sure you can easily do yourself.Another consideration is ability to remote control homes heat and AC, remotely turning off water heaters to save energy when no guest in house,door locks for remote code management and alarm to protect house.

Personally I avoid calling the lender so I don't cause alarm on their part.

Vacancy 13% is on the higher edge, not alarming but generally you want no more than 8%.

I have alarms sounding all over the place as I think about that.Don't let me talk you out of what you may consider a decent deal.  

I cant imagine a happier job than waking up in the morning without an alarm and driving over to a house just to renovate it for resell or rent.