*Not an attorney, so do please seeek legal council on this.

You just missed this city council meeting, but I'm sure there will be more news to come: http://www.tinyhousecommunity.com/map/events-calen...

Since you're on a 5-year time horizon I would also make a call to the local planning agency to see if there are any discussions at council meetings about introducing vacation rental restrictions.

http://www.seattle.gov/council/adu-eis

I wish I could be of more help but I'll share what I have seen British Columbia.Similar land layout, 12 acres.4 Pads.They used a leaching bed for the grey water.They require the tiny homes to use composting toilets.This effectively removed the septic installation cost, maintenance cost and allowed them to reduce the price per pad for the tiny homes. 

This is one of those BS terms that's always bandied about as if there's some grand council determining what prices should be.

So while in my backyard, I could tell you all the proposed developments and if they were likely to pass, due to council and general sentiments.

The council pulled the anti STR ordinance.  

Where does it stand as it relates to dissolving SF zoned areas to make room for more density. i.e.) https://communitynotcommodity.com/2023/07/13/city-council-to...

I will need one for legal council, bounce ideas and help prepare me through the process (purchase, register, notify tenant)?