I was told you should have a tractor with horsepower about equal to the number of acres you'll be dealing with. Not sure how that works on thousand + acre spreads Personally, I wouldn't go less than ~30-35HP. I mean if you think about it, most of your bigger lawn mowers are using 24HP motors.I know that's what's on my 50" mower. I own ~20 acres, maybe 10 of it in pasture, and have my heart set on a 40-47HP Branson. Though I'd get the 35HP model if the price was right. I'll take just about any tractor that's running if offered free...