Rent control laws are market specific.

You’ll want to check if your specific work falls under their home improvement contractor licensing, or if there are additional local permits required depending on the county.

Call the zoning department again, and this time ask specific questions: Is a variance required, or can you proceed as-is?

Eager to hear if anyone has any more up to date information about Costa Rican REI in general and/or VRBO specifically

I think it's going to be location specific for sure; where I am very few people hang out in the house all day long as they are usually busy hitting the parks and attractions. 

If, however, you are not specifically looking for me to be nice and would like me to be honest instead, I'll say that using tools like your app completely misses the point and should be avoided, outside of as a teaching tool.

USPS specifically forbade from doing anything like this years ago.

Home warranties can sometimes cover rental properties, but it really depends on the specific terms of the warranty and the provider.

My biggest advice for people would be as follows.Know why your in the real estate game, and why a specific niche.

Deals are location and market specific.2.