Welcome from NC. I used to own a 2011 zinger 26BL (bunk model). It was a very good trailer for us. We sold it because we wanted to move up to a fifth wheel.
Check it out carefully for signs of leaks... soft spots, pimples on the wallpaper, etc. Check all caulking, slide seals, Windows, marker lights etc. Make sure everything in the trailer works AC, heat, etc.
2014 Chevy Silverado 3500 SRW Duramax
2011 Zinger ZT26BL-sold
2014 Sabre 34REQS
***Member of the Mason-Dixon Group***