Having a local trusted partner to manage your investment properties is key as well. 

it will be a corporate/wellness retreat/short term rental destinationI need land that is close to the Action, but not too close, and preferably comes with two single family doors already built, so I can take advantage of Fannie Mae owner occupied loan and develop the rest of the land on my own and with private funding.Is Columbus a good market for this strategy?

if you were only going to rent out a portion of the house as an STR that portion would have to be worth more than your exchange as well.

It costs roughly $100/mo but is well worth the expense.  

Could you please provide insights on these?

. #4 should come from a solid agent referral as well

If that's the case, you might as well just pay them.  

You should check with your 1031 provider quickly.

My thoughts as well.

Let's of NYC investors look at other cities in NY, Rochester, Buffalo, etc... they can drive to them to see them, and they know the state well enough to feel comfortable.Most of the rust belt cities in NY offer cash flow as well.