Well many smaller residential type lawns roughly .25 area and less! Just your typical small front and slightly larger backs... That being said I'm just starting out using a homeowner grade mower which is fine for now but I k ow I will need something better soon, not servicing but 8 clients now with NO advertising or soliciting, just multiple people just asking for help and no owning a mower or there current lawn care guy being hard to get a hold of!
I will slowly start to go out and pick more up just in my neighborhood and spread out as time goes on