I've only found one contractor who would do it residentially, and then only for 50+k sq ft. While still waiting for the soil test, based on the aeration the front lawn needs it; about 10k sqft. No one here rents a top dressing machine. Most of the rental places never heard of it. The front yard would need around 15 cuft, too much to unload from a dump truck (no place to put it). What would you do?