Steve ...welcome to the forum! You should make it down to the Monaco Forum
real soon to find many other Monaco owners who may be able to help any "brand-specific" questions.
As far as your leased vehicle... You will need to get something in writing from your leasing company to protect you at the end of the lease because it will come down to what they say at the "lease termination" no matter what we tell you here.
With that being said... a tow-bar is an alteration to the vehicle and they can "ding" you for that.
Have you thought about a tow dolly that will not alter the vehicle?
The other question about if the Monarch can tow a Honda - well that depends on many things.
The tow hitch is rated at 5,000 lbs so I am sure the hitch can handle it BUT there are two chassis' for that model - so that will be one determining factor and the other factor is how much stuff you load into the rig. You need to get a 4-corner weigh done once you have your "home" set up and then go from there.
You may want to do a search for "capacity" to learn about just how important not being overweight is.
Again...welcome to the forum!