STL Import Squaring Up model & non-vertical faces

Yeah, I’m thinking you’re right. I was sort of starting to do that in another file just in case, but wanted to check just in case. I tried the suggestions from “this post” and it seemed to help, but it didn’t solve the problem. I feel like this is one of those time where if the problem isn’t 100% solved, then it will come back to later on and take way way way more time to fix than if I just rebuilt from scratch