For those of you who wish to skip the details here's my summary:
The overall issue is I had an excessively squeaky hardwood floor in the kitchen that was noted and promised to be repaired among other unaddressed issues. It was repaired after many months of constant calling and pushing for resolution, I was stone walled by the company for a long time until I started filing BBB complaints and having my realtor constantly harass them.
Don't buy a house from Riverside Homes of Oregon unless you treat it like an As-Is house. They won't fix anything you agree to have fixed even if it's written. Require that they let you do a secondary walkthrough or reinspection from your house inspector. Do not close on the house until everything has been repaired and you have validated yourself and expect long delays (get a long rate lock on your loan, you'll need it.) Make your purchase agreement subject to inspection (don't buy the house if they won't let you.) Remove the binding arbitration clauses (don't buy if they won't let you) that way you can take them to the Construction Contractors Board or can sue them in small claims court without going to an arbitrator ( do some research, arbitrators lean towards the industries favor.)
I would never work with Paulson's Floor Coverings again they were the subcontractor who falsified a report and has done questionable tests of the installation throughout the whole process and did a replacement eventually that had some minor issues I didn't follow up. Also I wouldn't use anything distributed by The Cronin Company. They were the Dansk wood distributor who came out with Paulsons and wrote there was nothing wrong with the installation or material.