Also as @Jake Baker mentioned we are seeing BRRRR investors have a lot of success in in Jax area.

It is actually just a tool to create the already mentioned accelerated depreciation.

You mentioned that you've been paying water / sewer for all 4 units. 

I mention all this because it's not a jammed up, slap dash space but from an insurance perspective do you think I should be concerned about the interior inspection and the 2 family zoning but 3 separate tenant discrepancy?  

There is some additional information that wasn't mentioned in your post above which sheds a different light on the situation.  1.

But the Jet production got delayed with the GFC and we got knocked on our A$$ and as mentioned had to start all over.

As others have mentioned, the rate will be higher compared to a loan with a 5 year prepayment penalty. 

Some have mentioned issues with the Indianapolis Housing Authority, including delays in payments and cases where landlords with new tenants haven't been paid since January 2024.Do any local investors have insights or experiences with this?

All the markets you mentioned are solid choices for affordability and long-term growth potential.If you’re looking to narrow it down, consider Indianapolis or Columbia, SC, as both have strong rental demand, landlord-friendly laws, and stable economies.

Another good alternative would be Bonita Springs, just on the North side of Naples, or Cape Coral as I mentioned above