I know (because I saw it recently) that if lawyer assists you with forming a C corp in WA, their address can be used and they become an agent for your business,

I know (because I saw it recently) that if lawyer assists you with forming a C corp in WA, their address can be used and they become an agent for your business, IE: they potentially get all your renewal paperwork, etc. I'm assuming if you had a lawyer form your LLC that they could do the same. That said - I've had a WA LLC for decades, my partner has formed LLCs in WA, etc... it's trivial to do yourself and fairly harmless to include your home address. In the month since she formed her most recent, I think we've had two pieces of junk mail. I did a search with the DOR a few minutes ago - yes, the address shows up for my business but not for hers, so who knows whether your address would even be published?