Yes. We had a KZ Spree Escape that needed warranty work after a trip to Disney (2,500 miles round trip). The dealer was 3 hours away and the work required wasn't extensive (replace leaking plumbing fixture, find a fix short in trailer running lights, find and fix cause of non-working stereo speaker). KZ agreed to allow a local RV repair shop document the issues and after review gave the shop the go ahead to do the repairs.
Again, this wasn't a huge and expensive list of repairs but depending on the manufacturer and your situation that may allow an independent shop handle the work versus having you drive hundreds of miles to the dealer you purchased from.