But, since you seem to be implying very specific things, but without being specific.

I don’t care to hide my fee as I will be very transparent. 

You can end up with net income or, as is very common for rental properties, with net loss.

You have used home equity lines of credit to purchase investment rentals and want to know the best way to pay down the HELOCs.Between the two properties you bought, after expenses, you have $250 a month positive cashflow to use.What I like to do is pay down some principal every month with my positive cashflow.I use my extra active income from real estate commissions helping other investors to pay down the principal even more which just frees up that credit for me to use again.I know I can refinance the HELOC debt before it changes to principal and interest as it is just interest only payments as yours are.One difference is the cashflow, I have greater positive cashflow and could make the principal and interest payment in the future with the extra cashflow I already enjoy.I always get HELOCs on my income properties as well after purchasing them to pull out as much of my downpayment as possible.

It's all speculation at this point, but we are very hopeful to have 100% bonus depreciation or some form of it reinstated.

Comments like this is very insightful and honest.

Zoned SFH and very common setup I am seeing these days.

First pro is you learn how to be a landlord and to manage properties and this is the best way to get started into real estate investing.

Because, Well, there is a lot of downside and the results can be very catastrophic to an investor who does things improperly.Same with taxes, everybody's situation is different, so hearing the things to avoid helps a lot of people before they get into trouble.

What would be my best route to take if we need additional finances?