Portland Oregon Permit Question

[Marti Dowdy]

We are in the middle of selling our home that we have been renovating/remodeling.  We had multiple walls taken out and had hired a structural engineer to draw plans.  now, 3 years later, we have learned that our contractor did not pull necessary permits.  We were shocked, but moving forward to get them per protocol to sell, we learned the engineer stamp has expired and will need to come back out to reassess.  Our contractor now wants no part of it and we are not only fearful of what it may do to the pending sale, but the possible costs.

we can not really afford to waste time or money on who's responsibility was it to pull the permits.  However, I would like to know for my own peace of mind;  was the contractor legally supposed to pull the permits ? I'm so confused by the double talk I found.  Any clear direction?  I think it is state specific.

Thanks in advance