Most of the transactions between gold and/or BTC is converted from USD or converted from USD to purchase; therefore it makes it a bit difficult.

Also consider having separate HVAC systems (perhaps a mini split for the guest side).

Aside from my banks, I just want to know what it is because I want mathematical confirmation that the crux of my actions over the course of a year (I actually track it about every few months if I'm not submitting it to someone) are contributing to rather than subtracting from my pot of gold. 

Your heading says the guests are renting the entire villa.

This is gold.

Throwing three sets of strangers in a house without a host onsite is a recipe for disaster.Guests who rent rooms tend to cause more problems than guests who rent entire places.

Physical therapists, specialty doctors and administrators often need short stay long term rentals.Remember that you will need to vet each guest and use a regular lease, not a rental agreement for under 30 day stays.

If it stays status quo, I'm fine too. 

I've had about 15 short- or mid-term guests on my podcast, all of the big names.

@Melanie Hernandez two questions to ask are: can you effectively and profitably run a STR business giving your guests a wonderful experience and can you provide value to and mitigate risk for your property owner?