Thanks for the chance to assist on this matter. I am an attorney with over 12 years experience in criminal law.
I am sorry to have to bear bad news...I do not believe evidence that you never received the notice will prevent conviction. It certainly will not be grounds to dismiss.
You can see the law that applies hereHere is the link
If you look at the law that applies it states
(1) It is unlawful for any person to drive a motor vehicle in this state while that person is in a suspended or revoked status or when his or her privilege to drive is suspended or revoked in this or any other state. Any person who has a valid Washington driver's license is not guilty of a violation of this section.
This is what is called a "strict liability" offense.
That means the state is not required to prove you knew the license was suspended.
They only have to prove it was.
This is different from some crimes, for example, theft, where the state must prove "intent". Not true for driving with a suspended license.
Now...the fact you did not know IS relevant at sentencing. It would show that you should not be punished as strictly as if you did know.
But it will not excuse the crime. So it can not be used to dismiss.
Also, even if knowledge was an element, the fact the wrong address would not be enough to dismiss...that would be evidence for the jury or judge to consider in deciding guilt or innocence...but would not stop the state from charging.
Again, sorry to have to bear bad news