I agree with you getting the advice of a good behaviourist
If he was mine, I wouldn't let him on the sofa at all.
It is hard to work out from your description if if is over excitement, in appropriate play or something more serious.
At his age he is almost certainly testing the boundries.
Reward him for resting/staying/sleeping is his bed on the floor. If he won't stay there, use a crate in the lounge, making it rewarding, and shutting the door if you need to
he won't feel excluded, but won't be able to cause havoc!
Avoid all confrontation, rewarding for correct behaviour. If you need to move him, lure and reward
or even leave the room yourself and shut the door behind you for a couple of mins
Oh, and from now on, use the recycle bin for all newspapers