Isn’t that true? 

Our home was right next door to a shop that had alot of oil tar waste. 

This is very true.

Spend $200 and sit down with a real estate attorney and get the scoop first hand on what is allowed and what isn't.This is true for California, Oregon and Washington.

Agreed - its generally a bit more challenging if its true "student housing" as rent-by-the-room is generally prohibited for DSCR. 

@James Wise True story

Seller shall provide such documents and information, representing them to be true and accurate, within _______calendar days after acceptance.

Long terms rentals will have repairs from time to time, but if it is a true emergency, you are going to be calling someone (eg plumber) to come in and fix something, so that is no different than your own home (minus the clean up). 

I used a local independent agent and when this was his best answer - I tried to shop for other options and came up empty so far. 

ADU providers (designers, developers, etc) state the appraisals have not caught up with the true value of he ADU.