Search the BP for ADU appraisals to encounter numerous examples.

Youtube is the second largest search engine, and has videos on basically every subject known to man.

I've done deed searches and look at different documents filed.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

Definitely get the structural engineer to look at the joists & support beams to see what's up with the uneven floors.

I am now working as an engineer in the Twin Cities, but have plans of moving to Austin, TX with my wife to house-hack and work in the more plentiful tech market over there. 

It forced me to reach out to developers, to engineers dozens of local builders and most important like minded individuals.

I've worked with a client in a very similar situation, and have spoken to many inspectors/engineers/builders, etc about things like this.

I’ve even had structural engineers say that a deck or other structure should have fallen down as well, according to their calculations.

I'm an engineering student planning to start a business after graduation.