Purchase Another Investment Property and Utilize a Cost Segregation Study:When you reinvest in a new investment property, you can perform a cost segregation study to accelerate depreciation.

I recommend you really study your market to determine the appropriate rent rate, then market yours 5-10% below the competition for a six-month lease.

It takes a lot of training and continuous study to stay on top of tax law, especially with all the changes in real estate tax rules.

The feasibility study happens here before any filings occur with NYC DOB. 

If there is still money left, I would set it in an account and study here on Bigger Pockets and get and education in stocks, options (i love options), notes and real estate.  

One Cost Segregation Study is included in our package with the Tax team as well"Curious - which advisors are you working with and what are they charging for the consult and single cost seg study?

things missing in your list (everyone manages differently, so take it with a grain of salt)Vacancy rateTurn overbad debt legal fees (evictions as needed)accounting fees for professional tax prepmaintenanceProperty TaxesSales Tax on PM fees (In NM, this is charged, not sure about where you are)Reserves for replacement CAPEX - furnace, water heaters, ac, roof, parking lot, etc.Admin, software, advertising, etc.Cost segregation study for accelerated depreciation captureAs for your loan. 

A recent study showed that 80 people are moving to this city every single week, which will continue to increase housing demand. what area of columbus do you recommend?

I am not an attorney but I have studied this a bit so take it all for what it is worth.

To set the scene: A cost seg study breaks your property into two important categories:1250 "real" property aka the building, foundation and other long life assets.