just starting out this coming season

[gpservices]

I dont think a 21" will cut it in this industry unless you are just doing like 1/4acre lots otherwise you will never mow fast enough to be profitable. Id say for first year invesment a solid used 48" walk behind like a scag, toro, or jd or lesco With a kawasaki or kohler motor would suit you well, maybe get a sulky to speed things up, thats not a huge investment incase it doesnt work out and then you would just have a nice mower for your own yard but hopefully that wont happen, good luck