It would be a pretty exceptional property that could generate that much true cash flow with a mortgage.

***Only exception is if an owner has plan & funds to reposition Class D to Class C or higher.https://www.biggerpockets.com/forums/776/topics/960183-what-they-dont-tell-you-about-cheap-rental-properties?

Not much you can do except to incentivize them to leave...or another option is to tie up the property then flip it to a local buy/hold investor.    

@Alex Chin always has good advice, and I can't add much to this thread except my usual rant about data-driven processes... ie making your own databases from assessor data and tagging/marketing to desirable parcels.

My original advice was to treat them like a normal tennant if you can and not to give too much slack or expect exceptionally quick action just because they were military.  

Except for the old mobile, the parcel itself has a lot of upside. 

What happens if one of the 3 rental applicants who will be living in the units have bad credits or have other bad judgments but the other 2 applicants are exceptional and meet all the requirements, should I still approve the rental anyway?  

The house is 100 years and original electrical..and found some foundation issues...all windows except one are sealed shut...for your safety she told me today...I was like really now...the house it made of that lighternot..not sure of spelling there.. but has joked that if it were to ever catch on fire to run...I by no means want to cause trouble , just feels so unfair ,knowing I've got craniotomy (brain surgery in a few weeks) so why make me move if house was took down off market at all...idk..just very aggravating ordeal...I know all that is not her problem but never dreamed she would do this...she's been one pushing me to go thru with it and now it's at point where I have to..can't put it off...but thank you for the advice.

There are no wrong answers - each investor has their own "flavor" if you will. 

But by then, your rents should be higher so your profit will still likely be the same.And as a rule I like to be near the bottom half of the market myself - except when I have a near new construction home (built in last 10 or 15 years).