The 1031 positions the investor into a property that the REIT absorbs as @Joe Sera said in the 721 conversion. 

In my search, I've noticed that many positions require proficiency in Yardi.I've been actively looking for effective ways to learn Yardi, but it seems challenging to find suitable training or courses online.

Quote from @Anthony Maffei: I purchased a two-family property in 2017 and now have around $500K in positive equity.

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If one tenant moves out, the property remains cash-flow positive. 

Some lenders offer creative solutions, like a cross-collateralized loan, where they use your existing equity as security without refinancing the duplex.Another idea is partnering with private lenders or exploring a second-position mortgage, depending on your lender's terms.

You have used home equity lines of credit to purchase investment rentals and want to know the best way to pay down the HELOCs.Between the two properties you bought, after expenses, you have $250 a month positive cashflow to use.What I like to do is pay down some principal every month with my positive cashflow.I use my extra active income from real estate commissions helping other investors to pay down the principal even more which just frees up that credit for me to use again.I know I can refinance the HELOC debt before it changes to principal and interest as it is just interest only payments as yours are.One difference is the cashflow, I have greater positive cashflow and could make the principal and interest payment in the future with the extra cashflow I already enjoy.I always get HELOCs on my income properties as well after purchasing them to pull out as much of my downpayment as possible.

Your looking at this really cool and unique position your in, and focusing on it as a problem. 

If it's net positive, then make sure to do it up to code, etc so the finished square space can count.

The zoning office suggests reviewing the zoning ordinance, but the course didn’t cover zoning assumptions in detail.What’s the best way to verify zoning suitability and double-check zoning information?