I recommend being as precise as possible e.g. choose a market if you haven't already.

Sell individual lots and do 1031 Exchanges for a multifamily rentals (BRRRR). 

But now the investor side of my brain is saying WAIT a second, why don't you do a 1031 exchange!?

,You have two options after a 1031 exchange. 

But I fear you must be on active duty in order to extend.However, there's another reason entirely that would send me to a 1031 exchange. 

Up, down, flat, up, flat, down, down, repeat…And to quote Economist Mark Zandi for the third time today, “[The Fed’s] got everything they need to start cutting rates…It’s just a question of precisely when.”The housing market is improving, the supply of homes on the market is up double digits this month, and in my business I am seeing a healthy spring flow of demand for both homebuyers and investors.

Raj,  forget about the interest rates for now: if you are in NYC, I'd do a 1031 exchange out of commercial and into B or B+ area in NJ or even PA for residential.  

Using a 1031 Exchange we were able to defer capital gains taxes and upgrade to the VRC.

If you want to connect with me, so we can exchange contact info, I can email them to you. 

So the 600k includes paying off what they owe Unison. in the case of a refinance they would still live there, we would just be getting them out from under Unison in exchange for our names in the title and getting the house once they pass.