Best way to remove roots around a tree stump
A woody plant killer like crossbow is the only way I know of and it won’t hurt the lawn. I usually paint the stump just after cutting a tree around the outside just inside the bark with concentrated crossbow and let that sit for at least a few weeks. If any shoots come up hit them with crossbow it won’t kill the lawn unless it is all dandelion’s. This has worked for me on even cotton wood that will continue to put shoots up for years if not treated when cut down.