If you're talking about towing a travel trailer, year round, in North Dakota, Montana, Wyoming area, that's not a good plan. Any travel trailer is like pulling a big sail. Mix that with ice, snow, wind, and possibly mountains, is a recipe for disaster.
Other problems you would encounter:
1. Keeping things from freezing - holding tanks, plumbing lines, water pump, dump valve and sewer lines.
2. Camp grounds - Most, if not all in that part of the country, close up during the winter. They also drain their fresh water lines to prevent freezing. If you find one that will let you park, they will have no water available, and quite likely will not allow sewer dumping (they don't want that freezing either).
3. Setting up in a permenant place, with skirting and heat applied to your water and sewer, is completely different from hitting the road on a regular basis. You could have a some freeze - thaw - freeze scenarios, and have your tongue and sabilizer jacks stuck in the ice.
4. You'll need to fill propane bottles, almost daily.
I grew up in Fargo, and have been going back there for deer hunting, since 1996. We got by for a week to ten days at a time, but, there were times, such as a power outage or valve freezing up on the propane tanks, when we had to dump our fresh water and winterize the trailer at a moments notice. Because of those situations, we leave the water heater in bi-pass (out of use) mode. No showers and dish water was heated on the stove. There was a time or two when, due to snow storms, I had to leave the trailer behind, and go back for it, when snowplows got things cleared out. I have electric heat pads on my holding tanks and sewer lines, up to within six inches from the dump valve. Coming back from a couple deer camps, I've had to thaw my dump valve in order to get rid of stuff in my holding tanks. I've had freezing rain turn to snow, my power cord was frozen to the ground, and the television antenna was stuck in the up position, until I climbed up there and thawed it out.
I don't think you're aware of the problems you could run into. The sales people will probably tell you "Artic Fox is a four season camper". I doubt those folks have actually tried any cold weather camping. If Arctic Fox has an outside shower (almost all RV's do), the only thing protecting that from freezing, is a plastic door with R value 0.
Insurance wise, a travel trailer is normally a rider on the tow vehicle's policy. Is your boss ready to insure your property?