WA state new laws?

I'm in Eastern Washington, an currently my medical card is expired. An of course all the laws have changed. But I'm curious how many plants I can have at the moment. I know the state says anyone over 21 can have 4 plants. But does that mean, me an my roommate both can 4 each? or just 4 per house parcel?.. any info would be gladly appreciate ty in advanced!

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http://www.liq.wa.gov/laws/current-laws-and-rules this is the best source... The government will let you know what will fly.

In washing you must have medical recommendation to grow ANY marijuana.. if you get your Medical recommendation you can grow four plants.... If you register you can grow up to 15 plants, if your doctor recommended you have more plants then standard.. that might be considered collective gardening with the buddy and yourself via same property (tax parcel).. what's really confusing if what if there an apt complex, who get the right to have the plants lol