You ask a great question. While it's been many years since I lived in Portland I was up a few weeks ago and it is a beautiful area.
In any market there are actually two sub-markets. 20% of listings usually sell within 30 days. Those listings are prepared for market, marketed in a way that maximizes their value to buyers, and sell closest to asking price. 80% of the listings are over-priced, not prepared for market, and show less value to buyers. In my MLS listings at 30 days sell for 99.7% of asking price, versus at 120 days selling for 92.7% of asking price.
So if you are thinking of putting your home on the market, where would you like to be- the 20%!
I would be happy to arrange for you to interview a top Realtor Lake Oswego if that would be helpful. I recommend interviewing a few top agents, then compare their proposals, and you can select the one that best meets your needs.