It will likely even be an upgrade from my tiny apartment here in Arlington, VA.

Although they ask for the LLC's TIN#. Is

Probably a tiny bit more than that.Then you've got down payment, 3.5% with FHA vs 25% on conventional non owner occ.Plus the money you're saving on rent of course.

The process to get a TIN is not difficult, but it can take many weeks.

My wife and I are planning on buying a plot of land in Lake Tahoe, preferably in Placer County, and hoping to build a tiny home.

I think that if someone is motivated enough to call a tiny postcard, they don't care too much about the name.  

If possible, I would like to keep for the long term, generating maximum long term rent.Current Options with the Home:1) Rehab and Flip2) Rehab and Rent (BRRRR)3) Rehab and turn into Airbnb (never done this yet)4) MOST PREFERRED: Obtain proposals to increase property value; add tiny homes and/or additional short-term rentals on the grounds.Would you happen to know who I can work with to obtain ideas how best to maximize the land use and profitability of this project.  

Let me just tell you what an *** I feel like pulling up to the Home Depot to load my 8' lumber, a vanity, or 500 sq foot of laminate flooring in this tiny excuse for a car...lol.

The biggest remaining items pertain to the crawl space and the parking situation.Here is an itemized list of repairs:Big roots cracking our asphalt driveway directly in the way of people walking into the unitsCrawl space vents broken/missingCrawl space vapor barrierMold on support post(s) in crawl spaceInsulation hanging down in crawl spaceRodents in crawl space (hire a professional or crawl the tiny space and bait stations?)

I myself rented a tiny home with stacked washers and dryer - my landlord built the home himself and he engineered a sort of shelf that helped keep them stabilized.