Even couterrotating props won't get trid of torque effects very easily, as the rear prop is operating in the swirl of the front one - means that you have to tweak the two pitches very carefully to get rid of torque, and even then it only works perfectly at one speed. The pod-mounted twin with counterrotating props would work, though.

Getting rid of yaw-pitch coupling is even harder though, because even a symmetric plane has asymmetry in flight, due to the downwash of the wing. This is especially evident in the transient response, but will also show up in steady-state response to rudder inputs. This is because the vortices shed by the fuselage when in sideslip get "bent" by the wing's downwash field, causing pressure differentials on the fuselage, and unpredictable effects on the horizontal stabs. You can even get some yaw-roll coupling this way.