should be at bedroom. mine is in second floor hallway. CO is lighter than air , it moves up. There could be some CO near furnace from time to time when it is just lighted up. If you put alarm there. It would give false alarm.
furnace has one stage, two stage.. basically some furnace could adjust the fire, some furnace does not. For two stage furnace you could go higher because it would adjust if there is too much heat. For one stage furnace go lower. Because you want furnace to be run longer and smoother. You house...
1) Ontario inspector could work Quebec side.
2) seriously they can't find everything in 1 hour inspection. I think most of them just about same as long as they followed their manual.
3) I don't have the list. Should include most part of house is not covered. One fee only
4) on the spot.
Go home depot and ask. The problem is get right mix for the stucco and right tool. You could get piece of wood do a little practice before try on walls.
Stucco Repair / Patching
I did it before. Home depot and canadian tire has gasket for sell. What you should do is opening it up and find that gasket. Take the whole thing(the part that hold gasket) to homedepot to find a new one or a very similar one which is little bigger that you can modify to fit. I fix the problem...