2019 brochure numbers:
GVWR: 20,500 pounds
GCWR: 26,000 pounds
Hitch capacity: No numbers
If coach is loaded such that its weight equals the GVWR, then horizontal towing capacity is at most 5,500 pounds.
Hitch rating should be on the hitch. If hitch rating is lower than 5,500 pounds, then horizontal towing capacity is at most the hitch rating.
The coach manufacturer can set the horizontal towing capacity lower still. It should be listed on a label inside the coach, or in the owner's manual, or both places.
If towing a trailer, then vertical forces must be taken into consideration, in addition to the horizontal towing capacity. The actual trailer tongue weight and the actual rear axle weight must be within their respective maximum ratings.