Now, if I am putting on my paranoia hat, they have the code to the door and the address.

@Thomas Rutkowski, Section 453 of the Internal Revenue Code has been around for years, as you state, but the case that specifically supports the Monetized Installment Sale is a relatively recent case. 

We did have our eye on Midtown; Ill look into the other zip codes!

Is this realistic with city zoning and building codes?

Electrical panel seem to be up to code.

I did read in the IRS tax code that expenses like furniture have to individually be less than $2,500 to be expensed instead of having to be capitalized.

A cleanout probably wasnt code when the house was built , so that is fine the way it is . its not broken .

All of the meetings that I see about ADUs are sponsored by builders who want to sell their ADUs.Are there others who want to build their own or want to share their experiences about building ADUs / converting outbuilding / navigating codes in Portland that DO NOT involve hiring one of these tiny house start-up companies?

He makes sure to pay each month but mails them late , spills something on envelope so its returned to him, once he just put my first name only with no address and the zip code.

Is anyone a current building code inspector in the state of FL or have a connection who is?