My concern is the decreasing value of the home.

If you're in a transitioning market and cap rates are increasing but your particular building continues to increase rents, your property value may stay the same (because of increasing NOI) or slightly decrease.

I love the decreasing upfront capital over time in your investments!

Demand for rental properties decreases as will rents.Where prices go, rents follow. 

When you sell the house your basis is decreased by the amount of depreciation taken or allowed, whichever is greater.

I’m doing all I can now to decrease the likelihood of that happening.

Financing a car raises your DTI and decreases the amount of real estate loan you can take out with a conforming loan.

Yes I’m buying 2-3 properties a month and factoring on 5-10% decrease on ARV when I’m analyzing comps to be safe.

The quality of the neighborhoods isn't the best (mostly C/-C), and neighborhood quality can drastically  increase and/or decrease over just a few blocks, so make sure you know the area where you're buying.

They recently were awarded a $50 a month rent decrease by the prev owner, and it is well below market rent.