If I'm looking to househack with my family (I had a toddler and a newborn the last time we did it) I might be interested in 1/3 of these neighborhoods, of which a few will absolutely produce some income (assuming you're number's aren't ultra-conservative) upon moving in year 2-3.

Up until about 3 yars ago, it seems Tulum was a quiet coastal town, but its grown immensely in tourist and that has attracted the cartels and hence the crime.

With platforms like Airbnb or Hipcamp, you can attract travelers looking for unique stays.

I am super attracted to the idea because I love to fix and flip, and the emount of money to get started is so much less. 

I've never invested in commercial real estate but the price they want to sell for seems very attractive.

I then look at area vacancies, economic conditions, employment opportunities, area demographics and verify that the property has not been red tagged or have any other underlying problems that might make it difficult to resell or rent.When I have my financial information then I can consider debt service and costs related to equity partners in the overall income produced.

From a property appreciation / ROI-on-sale point of view, its unclear how attractive such a property would be for a future buyer.Would really appreciate your thoughts on this Invest 5S proposition or similar build-to-rent units.

Looks like a young group of professionals with not enough experience, navigating through various market cycles to produce an accurate  business case.  

It's not my area of expertise and believe those who focus on this line of work on a day to day basis will attract buyers and achieve a 2.5-3% better result than if I were to do this on my own.

The benefits that come with them can be attractive for sure.