I recently signed a lease on an apartment, there is a bad mold problem and my roommate is getting sick. Why can we do?

You are proceeding correctly. Gather up your rental agreement, a copy of your notice to the management, a copy of your inspection report, a copy of RCW 59 18 115(2), and RCW 59 18 085(3) and go pay a visit to the City of Kirkland's Building Department. If they tell you "we don't do that", go find the Civil Deputy in the Prosecutor's Office, ask them to set up the 115 - mandated inspection. You are asking them to inspect because you are being exposed to the weather. If the City agrees with you that you are being exposed to the weather, then you may be eligible for relocation, but at bare minimum you can utilize RCW 59 18 090 and get out of this rental agreement. Mold is always a symptom of water coming in somewhere. If the building has a good solid roof, gutters, and drainage, it'll be dry. Your roommate is going to need to get her doctor to say the mold is causing her symptoms. Doctors are notoriously afraid of diagnosing something that they have only heard about, so proceed carefully. But relocation (RCW 59 18 085) is a great remedy. It is three month's rent, all your deposits, any pre-paid rent, your costs of moving and your reasonable attorney fees if necessary in cash or certified funds within seven days from when the City notifies your landlord that the building is "exposing you to the weather". Elizabeth Powell