I feel like the inspector is abusing his power.

The challenge you're facing is not related to the manner in which you're financing deals, but rather that at 17 you're yet not allowed to sign a binding legal agreement (AKA "age of majority").Seller financing is an insanely powerful tactic, but it won't solve this... 

Permits in most locals are required to do any plumbing and electrical, you need to see what is required and what isn't required to have a permit by speaking with the Inspector.

I'm seeing here that this is more of a site for investors, which were not necessarily interested in buying or building for an airbnb, we are very interested, however, in building a home that we will live in & then rent out or make our existing home in Kenosha Wisconsin which is on Lake Michigan an airbnb.We know NOTHING about buying a lot & then building.That said,  We have been trying to figure out how we get the most Bang for our buck buying existing property or building our own home.We have been seeing some amazing properties around 50K in Yucca Valley and/or 29 palms that list having water and electric available nearby.We want simple clean lines,  I suppose what would be considered modern contemporary but I hate putting that title on it because for some reason it seems like there's an upcharge just by using that description, lol...

The power of income based valuation.

HI @John Louis Tomines, BP has been a great tool for me to network and understand the power of REI.

I'm inherently cautious and circumspect about the interests of the people I work with, and I suggest you are as well – they aren't bad people most of the time, but self-interest is a powerful driver.

Is the building electric heat?

I have learned to work on the safety items first including electrical, necessary structural, Roof leaks, water system leaks etc.

Debt is one of the many powerful benefits of real estate.