is this classified as "abandonment"?

The Defendant fail (sic) to return the security deposit, even though §83.49(3)(a) required Defendants to do so.”

Then it goes to a human classifier who is going to review it with their eyes and their subjective judgment and decide: let it go or send it for an actual audit.

So STR loophole there are personal use limitations: To avoid having the property classified as a "residence," which limits your ability to claim rental expenses, your personal use of the property must not exceed the greater of:14 days per year, or 10% of the total days the property is rented at fair market value

You gotta post this in the Classifieds.

As @Remington Lyman said, Columbus is appreciating rapidly and classifying neighborhoods is completely opinion based.

I read a bunch of the guidance online but I can't tell exactly how the property is classified once this has been done.

However, replacing the entire fence with a different one—such as installing a taller fence for privacy—would be classified as an improvement.

I'd agree with @Devin Peterson, best way to get this answered is to get a few quotes from different lenders and compare - either on BP Find a Lender or just googling (also if you post a version of this in the Classifieds subforum - or it might get moved there, you can interact directly with DSCR Lenders here - although this subforum is more about technical questions).

You can also use what is classified as a “Standard” stamp and as mention a machine presort stamp.