It's quite ironic when you think that Tulum has regulations preventing from building more than 3 to 4 story highs and from building on 40% on any buildable lot.

We're working on figuring out the local regulations for ADUs here which are a bit more confusing as it's already a duplex and not just a single family.

Do you understand the expenses and regulations involved? 

This specialized skill is rare—after working with many property managers in Las Vegas over the years, I found only two I would trust to place tenants in my properties.Contracts and processes must comply with all city, state, and federal regulations.

All these are great investing routes to take - if you were to go the traditional residential rental route, these often offer more stable cash flow, while Section 8 properties can provide guaranteed rent, though with some additional regulations.

Do they really know what they are doing, are they compliant with laws, do they hold the appropriate licenses, if there is fraud or errors can they buy it back and make good on any guarantee?

Just be sure to check the local regulations before diving in.

There will always be demand in the market (it's not like some covid markets that could disappear as vacation destinations almost entirely over the next decade), and the regulation risk is as near to zero as you can get in this industry so long as you buy in the approved tourist zones (again, compared to some smaller/less mature markets where they could outlaw STRs tomorrow).For short period cash flow there are better options. 

Think lakefront properties in small towns, destinations with new attractions (casinos, amusement parks)...Another idea is investing in properties suitable for accessory dwelling units to create dual-income setups, especially in cities with relaxed ADU regulations.

Focus on growth areas, understand local regulations, and use your rental history to build credibility with brokers and sellers.Good luck!