I don't have a chainsaw and have been doing this with a sawzall and some loppers to cut off the small stuff, I'm down to the big stuff now. It's a mimosa tree, so it's pretty light, useless, wood. The lantern fly invasion killed it. Living in a neighborhood of row homes with small yards, not too many people have need for a chain saw, but there's a few folks on the block who have one. The guy across the street mows lawns for side money and he gave me one that won't sustain running. That's why I've dug out the roots, to provide clearance to use a chainsaw and not dull the teeth of a borrowed saw. I don't have much experience with small engines like that, so I've handed the saw off to my next door neighbor who likes to try to get stuff like that running. We'll see how that goes. If no luck, there's a guy with a good one farther up the street. Gotta get those squirrels to move out.......
I was or am toying with the idea of pulling it down with my SUV and a 25 foot tow strap. The tree is about 12-15 feet tall. At it's thickest at it's base it's about 12" round, but it's mostly about about 10" in diameter.