There was one month where an adjustment to 2017 Illinois taxes decreased my disbursement a bit. 

Last one sent without my comments. is this pulling automatically from the PM system and other software sources so that it is up to date in real-time?

But most pricing is a function of recent comps, adjusted for the subject property by size, condition of systems, and aesthetic qualities. 

This will be the way to get them adjusted to assets that they will take over like I did from my dad.I look at multis and mixed-use to buy for my son to house hack, but NJ is crazy on pricing.

Otherwise contract a service for the season that will automatically take care of for every snowfall.4) YES you need to heat them!

Take a look and make adjustments.

Therefore your contract needs to adjusted accordingly. 

In the next 5 years, we can buy one property per year with 25% down (~100K), and perform the same operation of using cash-flow for paying off properties next 15 years and we will have $15K/month net-profit which hits our goal adjusted for inflation (assumed at 3%).

Obviously - I have also seen the latter, but I don't think having a loan at 75% or 80% LTV automatically rules you out for strong cashflow.

its mostly focused on retail, but the inputs are infinitely adjustable for whatever asset you are going after.