I’m counting 8 steps in the pic from post 44. In my quick and non scientific search on Home Depot and Lowes, a typical 8 ft ladder will have 7 steps, a 10 ft ladder will have 9 steps, 12 ft ladder will have 11 steps etc.
Safety labels clearly warn not to use the top step, which is why the local cop decided not to pursue the shooter and potentially save a President's life, not to mention the slight angle of the roof would be tricky, especially in the hot sun.