How does one go about obtaining a basic floor plan of their AirBNB to submit to the city/county?

It basically has everything you need to run a short term rental.  

Isn't Park City basically in SLC's backyard?  

You didn't say what size, but I'm assuming a basic two car garage, 20 feet by 20 ft roughly?

I used the same basic plan and architect, and the GC is the same one that build that house. 

I am now reading the Multifamily Millionaire book and basically want to gather some wisdom and knowledge on how to start this investment journey I want to embark upon. 

And given that many syndicators that offer paid mentorship cost in the 10s of thousands, I would just be very clear with each group you talk to on what you are needing versus what they actually offer.From the bits I have seen about a lot of people's mentorships (to be clear I have not gone through any), they cover market selection, basic underwriting, some marketing, basic legal compliance items.  

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After a stunned and surprised look, she basically told me it was a family oriented community, LMAO!

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