It sounds like you have a dealer who doesn't do a very good job of "make ready". With a good dealer, you should never see any QC deficiencies that make it out of the factory. Our dealer spent 7 calendar days getting our Mobile Suites ready for us to pick up, and I found 1 defect in the first week after taking delivery - a screw that was twisted off on a piece of trim on one slideout.
Two of the best, most knowledgeable dealers that specialize in DRVs and do an exceptional job of prepping and servicing them are (1.) Rolling Retreats in Elk City, Oklahoma and (2.) RVs for Less in Knoxville, Tennessee. We bought ours from the latter.
If you haven't found them already, I'd suggest you check in at the DRV Suites Owners Group on Facebook (the dealers I mentioned above are active there, as are some DRV factory personnel) or the DRV section of www.Thorforums.com
Rusty