Chicago's courtyard buildings open their arms toward the street, and the lawn inside those arms belongs to everyone who lives there. R & L Landscaping Corporation keeps that shared ground looking cared for, mowing on a steady cycle, trimming around the walk lights and the downspouts, and edging the paths so nothing spills over onto the pavers. Leaves and clippings are carried out of the courtyard rather than swept into a corner to mat down. Cut a lawn like this well and the whole building looks looked-after from the sidewalk. Cut it poorly and everyone can see that too.