Note at “standard” MLS market rent to price ratio, the property tax alone is ~20%.

Is Phoenix a good market?

Leverage - someone mentioned Real Estate doesn't beat stock market returns and while that might be true in absolute terms, it's definitely beat the market when you consider leverage.

I’m brainstorming ideas on how I can market myself to potential mentors in the STR game in order to gain experience.

Quote from @Andrea Lucarelli: I’m interested in beginning my REI career with purchasing a SFH or condo in Cleveland area (safe neighborhood) to list as a furnished rental for travel medical professionals, supply corporate housing needs, or house temporarily displaced families for insurance companies.  

I would for NOT do tree houses for liability reasons.

Nashville is a ridiculously competitive market.

Look at their marketing strategy.

.: Does anyone have any information about the short term rental market in Kyle Texas?

I would certainly advertise that and add pictures and themed items to house.