This property has been pulled from the market. It will be placed on the market in the future. As for being zoned to have a bed and breakfast it is not currently however that should be asked of Cowlitz County.
As listing agent for this property I'm unaware of any restrictions on home-based businesses but will follow up with the County to hear its response...is there a way of contacting you after doing so? Happy to receive your Qs directly, too: 253-988-0404 or firstname.lastname@example.org