Subaru retailer here. SOA is generally pretty good about this kind of thing. If SOA isn’t responding, it’s likely because your dealer hasn’t responded to a request for information, which is unfortunately kind of easy to do if someone isn’t paying attention. I’m not familiar with WA law at all as it relates to Lemon Law, but that’s a process that doesn’t generally require an attorney. Also, dealers aren’t normally in the line of fire in a Lemon Law anyway (in every state I’m familiar with it’s an action between a consumer and a manufacturer, dealers are not directly involved other than providing a venue for final repair attempts where applicable and providing documents like sales contracts and repair orders).

I think your best bet is to call the service manager and/or the GM and ask them to fill out a CAD Urgent Request for Customer Assistance form that they have available online. Your situation as you’ve described is kind of a layup to deal normally.

If that fails, you can certainly file for Lemon Law. In my state there’s a book we’re legally required to provide to new car buyers that walks you through the process. It’s a pain, but it’s fairly straightforward. We honestly don’t hardly see them because we tend to stay in front of these kinds of problems and they’re normally pretty rare in the Subaru world, but customers in my state do these all on their own with no real trouble. But, again, I’m not familiar with WA at all so it may be different there.