Purchasing trailer with no local warranty support?

I don't know about other brands but I have a Heartland Sundance. Heartland will approve any independent mobile tech or shop to do warranty repairs, minus the service call/trip charge for the mobile tech, which is well worth it to not have to bring your rig in to a shop and wait.

The kicker, I found, was that not all independent repair places, or mobile techs are willing to wait for approval and payment from the manufacturer, therefore you pay up front and seek reimbursement in those instances.