Welcome glad you found us. So is this your first RV or first 5th wheel? Double slide or triple slide. What are you towing it with?
I haven't owned that model but have had a few 5th wheels over the years. First thing to check would be tires & wheel bearings. Make sure those are in good shape. Do a good walk around & make sure everything is working okay.
and feel free to ask any questions you have. There is 100's of years worth of RVing experience on this site.