now that i have planned a lot of my stuff out, my 14 year old freshman brother is interested in mowing grass now. he is busy throughout the year w/ sports, but says he'll mow on weekends. i dont know if i have already described my neighborhood but it has about 20 1/2 acre houses and the same amount of 1-2 acre properties. there is an LCO who lives on the other side of the neighborhood so my mom doesnt want to mess up his living. this lco mows two yards in the hood. my brother wanted some advise from me and i said i'd ask the guys at lawnsite. main questions--- 1. could he be alright with a residential ztr(50") or maybe even a 21"? he doesnt want to spend a whole lot. 2. about what should he charge if his only costs would be mower, handhelds, and gas?