It will be a more cost effective rate than a Heloc.

The only thing that comes to mind may be insurance-related, so I'd recommend speaking to your insurance broker to see if the cost may be different due to fire damage could damage more units at a time.

What types of funding structures have you found most effective for scaling your real estate portfolio?

If you are to the point where you are feeling the effects of too many personal loans, you will start seeing the ability to qualify with a conventional product becoming more difficult.

Even if you have enough for a down payment and closing costs, there is always a chance the furnace or AC goes out the first time you try to turn it on (typically this would be caught by an inspector), or some major damage happens that insurance doesn't cover.  

Quote from @Kathleen Park: I recommend you educate yourself on "ordinary wear-and-tear" vs damages, depreciation, and your state laws.Do yourself a favor: buy "Every Landlord's Legal Guide" by NOLO.

As you may have been aware, this duplex was purchased by me on [CLOSING DATE], and the resulting change in ownership will take full effect today, [TODAY’S DATE].

The sides and back are one-story, and I can easily clean those gutters myself during turnovers.I’m also considering that periodic gutter cleanings might be more cost-effective than following the tech's recommendation.Does this quote and the suggested work seem reasonable?

On new builds the maintenance is lower but there could still be damage.

In addition, much of the dramatic catastrophic effects that were highlights can absolutely be avoided by using a real estate attorney.