How does this units water usage compare to nearby houses/units?

It sounds to me like you are asking about the classification for purposes of getting a city business license?  

Short Term rentals are definitely a different element compared to long-term (family) rentals. 

Eliminating the additional cost and inconveniences of a LLC each will serve a similar purpose but even with the LLC you must still have the insurance.

Maybe I should take a closer look at Vegas and at least see how it compares with the data I've put together. 

You'll also want to do some research as to how your unit compares to all the other units in the area.

Income earned from flipping will still be income for the purpose of calculating self-employment taxes, but if you spend it on the rental property it becomes a rental expense and will reduce your rental income. 

Probably an excess contribution under 4973, but those are very lightly penalized compared to PT's.

Banks are not in the business of rocking the boat on performing notes and get that you are transferring it into your LLC or business for AP purposes and you own the company.

Generally do you need to inform them as to the purpose, or can it be general?