Here's a journal article on "out of state depositions". When I looked it up I presumed it was California you were concerned with so I'm not sure what the article says about Washington state.

Out of state deposition process

If they jump through all the necessary hoops, they CAN eventually depose him but they will have to go to Washington state to do it...unless he agrees voluntarily to come to California and answer questions.

Mr. Wondering

FBH(me)-51 FWW-49 (MrsWondering)
DD19 DS 22 Dday-2005-Recovered

"agree to disagree" = Used when one wants to reject the objective reality of the situation and hopefully replace it with their own.