Bad Stair: Unfinished. Missing a skirt board
Good Stair
Bad Stair: Holes in the drywall, missing the skirt board.
Bad Stair: Unfinished trim, missing a skirt board
Bad Stair: Code only allows a maximum of 3/8 inch variance between the beginning and end of the staircase. Here is almost a 2 inch variance.
Bad Stair: The tread should not hang over the stringer