You should talk with one that understands real estate rules and another that understands special needs trust and SSI rules. 

As a general rule, each entity that files a separate tax return (partnership, s-corp, c-corp, etc) will need its own QBO subscription.

Thus we broke two rules.  

From talking to locals, there's a couple of issues than need to be addressed, some are the non-ecological practices that some of those developers have, unfortunately, our government profits from this investors and allows them to destroy manglers (which are the natural water purifying system of that area) dismantling hectares of mangroves and degraded the habitat of resident and migratory species burying animals alive.There's proof of fecal material floating beneath the city of Tulum, only 20% of the water is sent to the water treatment plant, there's no infrastructure for the exponential growth.The landfills in the middle of the jungle that is leaking hazardous pollutants into the freshwater system and that something that developers won't tell you.I love my country and it would be a disaster for everybody if this place ends up like some other great beaches around the world, that are completely ruined by greedy investors not following the rules.There's no urban or comprehensive master plan, and one of the risks is that Tulum will be like Playa del Carmen is today, overgrown and with environmental devastation.I will advise doing a lot of research before getting something in Tulum, different country, different rules, and practices.

The easiest and straight forward option would be, as you said, to sell the current residence, payoff the HELOC (or most of it) and then get back to saving with your jobs and the rental cashflow.

There’s a silver lining, though—if the cost of the improvement is under $2,500, you might be able to expense it under the IRS’s safe harbor rule.

If you're planning to use an FHA loan or another owner-occupant loan, there are typically rules about tenant occupancy.

Apparently it violates their rules somehow. 

There is plenty of street parking so it wasn't a giant issue.The conversation was pretty straightforward.

@Bryan Cavellier While you certainly can do that, there are different state rules and laws to be aware of.