Real Estate: Do I have a small claims case, or a superior court case? Just the builder, or builder and real esate agent?

Washington state, Snohomish county. We bought a newly constructed home. The builder gave us a warranty book and claimed it as his own (I cannot prove that he made this claim). The company behind the warranty book have never heard of the builder. The builder refused to acknowledge or repair a major drainage issue in the backyard. The builder also refused to acknowledge or repair a minor defect, the doorbell doesn't work - instead of DING-DONG it goes THunk. We hired a lawyer after several months of trying to deal with him. The lawyer sent a few letters and had a few meetings with us for a total of about $1200.00. The builder didn't respond to any of the letters. We hired a contractor to make the needed fix and while he was there we had him do some other landscaping. Total we