So you'd be looking at high potential rental income, cheap properties or, even better a combination of the two.That prime candidates would be:Mexico and the Dominican Republic: cheap properties, mass tourism, occupancy all year long, closeness to North America, direct flights from North America, the US and increasingly Asia, strong international and domestic tourism and tourists coming from diverse locations.Southern Europe (Portugal, Spain, Italy, Greece): properties aren't necessarily that cheap (some are) but you have mass tourism there as well.Then you have secondary markets like Colombia or Brazil.

I need to secure financing for a 4-plex in my community and it could easily make me 3x the mortgage with tenant occupancy.

Check the tourism statistics: number of tourists, length of the season if seasonal, competition from hotels, hotel occupancy rate, is the place gaining or losing in popularity;2.

In Lakewood/Wheat Ridge area I can get $150 a night avg at 90% occupancy for a 2 bedroom basement unit with kitchen. 

It helps to maximize both revenue and occupancy and does it all fairly automatically.

Understanding that as compared to steady and predictable long term rental rates, STR rental income varies a lot month-to-month based on many factors: seasonal demand, competition, your standing on Airbnb or other platforms, your personal occupancy goals/philosophy (I.e., highest occupancy at lower daily rates, or Higher ADR with more infilled nights), personal usage blackout days, etc. 

Skylar, will you be an owner occupant? 

Property is protected by different types of Lease Restrictions according to zoning requirements - each subdivision is subject to both zoning requirements and developer deed restrictions - both of these can affect how long you can rent / lease a property for .There are some areas that have no restrictions at all and others that only permit owner occupancy and every variation in between really - you would check each property for their specific lease restrictions or get your Realtor to filter for it.

You will still need to depreciate the structure over 39 years but can accelerate the depreciation and take advantage of bonus depending on the year of purchase/occupancy. 

Not ready for occupancy yet.