Welcome aboard. I know very little about MHs. But the camper is a camper. A truck chassis is still a truck.
Is the purchase through a private owner or a dealer. If it is a private owner, inquiring the have the maintenance records and review them.
On board generator. Check the hour meter, and run it. If it has really low hours that may mean it will need tje carb rebuilt. They need to run at least 1 hour each month at half load or better. So inquire about how they use it.
Water leaks are the death of any camper. Check the roof for maintenance. Lots of dabs of caulking over the joints is a good thing. Better yet wow be to see eternabond over the caulk joints.
If the side walls show wavyness or bubbles. That is a sign of delamination due to water leaks. This will greatly decrease the value, and is extremely difficult to impossible to repair.
Test every system. Run the generator to run the ac. If possible connect to city water, and tun the water heater. Put some water in the fresh water tank, and turn on the pump, run a little water. Turn off the faucets. Leave the pump on and listen for the pump to cycle. If it cycles it means there is a leak.
Drive it. How old are the tires, 10 years old and they are shot. 7-8 years old, they may still be dry rotted.
Make sure to look for signs of water everywhere. Water kills all campers.
Hope you like it and decide it is right for you.