Hi Bill. I am from California and I am a Realtor/Investor. I was just in Portland last week doing research. I agree with you that the MLS is not the best place to find deals. Try PropertyRadar (subscription required) I believe Bigger Pockets has a deal under the resources tab. Also get creative and look for probate deals or walk neighborhoods and find the worst house in the best neighborhoods and knock on doors. Also work your sphere of influence. There may be deals there. Go to the local REI meetings if they have one. If not, start one and you will find people will come to them. Network for deals.
While I was in Portland I also went over to Astoria. I hadn't been in years and WOW! Change is happening there. The downtown is changing and the residential real estate market appears to be behind all of the nice changes downtown, so I think there is a lot of opportunity there. Since I have been back in California I can't stop thinking about Astoria. I'm doing research and running numbers.
Research, research, research. Find those neighborhoods and track the numbers on sales and rents. Good luck!