Some Yonkers yards begin twelve steps above the sidewalk. On Nodine Hill the houses stand shoulder to shoulder and the lawns are pocket-sized, perched behind stone walls, reachable only on foot with the equipment in hand. Green Muscle Lawn Care takes those on — mowing, trimming, edging and cleanups on the blocks where no truck can park close to anything. Saturday mornings the whole hill is out on its stoops and the smell of cut grass travels down the street ahead of the crew. Small lawns, done right, do an enormous amount of work for a neighborhood.