In addition to checking which states it's legal to tow behind a trailer, you may also wish to contact Northwood to find out what tongue weight that towed trailer can have.
I saw a manufacturing video for another Northwood brand (Outdoors RV) that mentioned 250 lbs on the rear hitch.
2021 Ram 3500 HO CC LB 4WD Tradehorn
2017 Arctic Fox 25W
HAM guy (Ke7FIX), Retired Robotics Technician, USAF