As you know, No dealer is required to accept your RV for warranty work. It is truly a dealerships choice to accept it or not.
When we purchased our Wildcat 355ls I called a local dealership and asked if they would handle any warranty claims that I may have if I purchased this trailer in Muskegon, MI and brought it home to Texas. Of course they asked why I would not consider purchasing this model through them rather than a dealer in MI. I explained this was a discontinued model and best I could locate the only remaining unit available. The dealer then said that they would handle any warranty issues that I had and that they could get approved from Forest River.
Soon after the unit was delivered to us I called this dealer in Rice, TX who stated true to their word and took care of the issues I asked to be done.
There was another matter that appeared which required a return trip to Elkhart, IN. Wildcat took care of everything for us, and we now have the 5th wheel back home.
So my suggestion would be to contact a few dealers in the area in which you plan to park it. Be cordial, explain the situation, get names of who you talk to, dot your i's and cross your t's.
You could also call Wildcat warranty service and ask them if they will extend the warranty on the MAXX to a southern dealer who is not allowed to sell the Maxx version.
2018 Berkshire XL 40B
Past RVs: National Pacifica 40', Kenworth T300 Toterhome, Jayco Class C 32'. American Eagle 40',
American Eagle 40', Bounder 38' tag axle