Then continue moving from one unit to the others until you renovate them all.

If you believe it will continue to appreciate (like most of San Antonio), I would hold on to it even if there's a bit of negative cashflow for the first year or two. 

And you can quite literally walk there from the U.S. side if you didn't forget your passport at home :) Of course, I don't know how much (if at all) this could affect a hospitality business, so I would continue trying to find someone who actually operates an STR here to find out more.  

Demand may be higher and supply continues to be tight. 

The fact I can go to my kid's golf game today, yet still catch a vendor overcharging me $81 the day before on a SFR in Georgia makes me feel the systems that are in place, plus the ability to manage sacrifices has paid off.I've had the same team in most of businesses for almost 8 years, and have a growing RE team that continue to impress me. 

Obviously if I held all these properties long term I could continue to 1031 from property to property and indefinitely defer long term capital gains.

Right now its slim pickings in real estate for properties that will cash flow or see any significant appreciation. of course they are always out there but a lot harder to find.The other question is why do you want to continue to grow?

So at least there is some motivation for the debtor to actually continue with the payment plan. 

I'm not saying "wow, what a deal" or to copy this I'm just saying when compared to SFH or continuing to rent, the 2-4 unit househack is very appealing and thus demand is strong.

I'm currently in the market for a Tax Pro that can assist with my relatively basic returns and continue to assist with a tax strategy moving forward.