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

Nor do I presently have the capital to buy and contract out the work.Just because I do not answer the phone immediately or get back to you right away does not mean I am not interested (though that may be the case for many others), it just means that I cannot talk right then.

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.

Pay the bill yourself, then reimburse yourself by charging the tenants based on a formula.

.- Reach out to local agents and wholesalers over the phone or in person at networking events.

I don't want to put his phone number on an open forum.

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.