Give Dave Mann at Corp a call or e-mail, run the question by him. Usually if any warranty problems can get handled by somebody you both agree on no matter where you live.
Matter of fact years ago they had a plant on your side of US. NW told them to get it together but they didn't listen. So they closed it down because he didn't want his name on an inferior product. Like delamination, thanks to Lippert. Now days... only thing lippert (on our 2012) is doors and windows. And yes had to re-seal windows in doors. But no Lippert 5th wheel frame to break and fall apart.