The agreement should also be some percentage based, if they do not collect you don't pay anything.

To me it sounds like you've got a lot of the bases covered but may need to update a few things to make it more appetizing.

a lot of these other software's are really excel based . its better to already build off of your own with metrics that interest you in the project 

So, an honest appraiser won't value it based just on the high level numbers you are looking at.

I would suggest that you find out the military bases nearest to your rental and see if they have specific sites, FB pages, etc. where they advertise.

Granted, I left there in 2013, but those monthly reminders, with any past dues, utility charges, base rent and NNNs, meant a vast majority of tenants paid each month.  

I've been a developer for 17 years on projects across the US and we do both JV deals and consulting based on what is most beneficial for all people involved.

Analyze properties based on rental income and expenses.

Include this in your sales pitch when reaching out.3) Offer STR services to build up cash and get your foot in the door...Cleaning, eyes on the property, landscaping, running to the store, small tasks such as a mail collection/trash day, offer a STR experience such as setting up for bachelor/bachelorette parties or grocery runs, etc...I think there's a missed opportunity with service based businesses and STRs. 

I don't think your plans will ever be built my someone else to be honest if they were custom.