Help them reduce risk? 

They may sell at a reduced price compared to a homeowner who has taken care of and loved their property.None of these repair issues are a deal-breaker by themselves.

I also want to payoff the property to reduce my debt liability and make it easier for my family to deal with should anything ever happen to me.Are there any negatives to paying off the SBA-HEDCO property loan now?

Cities then have no choice but to reduce services.

The price was reduced to $549,00 a couple weeks late.

The property tax increases, 17% recently on the Indy suburb house have reduced my cash flow. 

After he implemented the RUBS, he actually reduced the rent a bit to enable the user to adjust to the new extra billing.  

So that comes out to be $40K per home in the end.But during the DD, I've found instead of 40 vacant pads, only 35 vacant pads are usable, so there is a loss of 5 spaces for me.What is a FAIR way (to both sides) of reducing the purchase price to account for the missing 5 vacant pads?

Unless your Heloc rate is well over 9%, youre better off just applying your excess cashflow toward paying down the Heloc balance, which will immediately reduce the interest that accrues the following month.

The real estate appreciation, you can reduce your taxable income, and the interest on your mortgage is usually deductible, which is a nice bonus.