Happy to make an intro to my preferred realtor in that market! 

I like how even though you rent to the working class individual and they aren't $100K+ homes.  

Seems like a lot of folks prefer SFH, but I bought a Townhouse because it seems like it is easier to maintain (HOA covers external, landscaping, and neighborhood amenities).

I think this will work because this 16 unit will function more like 40 units with 40 individual renters.

If you prefer to be close to the restaurants, bars and nightclubs, you might be better off in or closer to the town although Tulum isn't that big so you have access to everything from the beach area as well.

Is this because you had a PM with insurance for this kind of thing or was this a clause in your individual building insurance policy?

Everyone has different opinions on this and it really comes down to personal preference.

I find land lording experience to be more work and stress than I would prefer with small kids, but that it is still a nice defensive portfolio position.

But some of it will come down to personal preference. 

As an investor, you'll need to wait until this period expires before your offer will be considered.Additionally, Freddie Mac may require proof of funds or a pre-approval letter with your offer, and they often prefer cash offers or conventional financing.