Originally Posted by Compa49
I'd suggest going through the statutes in RCW 9.41 (firearms) and RCW 9A.16 (use of force) in some detail, considering printing out key sections pertaining to ownership/carry/use of firearms.
A copy of the following book might be useful to you, as well: Washington State Gun Rights and Responsibilities (2012 edition), by Dave Workman.
Washington State Gun Rights and Responsibilities deals with firearms ownership, both the rights and responsibilities for Washington state residents. It contains language from existing Washington State statutes that were in effect at the time it was written. This includes the laws that relate to use of force in self defense, defense of property, and defense of another person. You will also find advice on safe firearms handling, a section on kids and guns, and the general "rules of the road" about owning, carrying, and using firearms, whether for recreation or personal defense.