Go to your league standings page > commish options (far right of the screen in green text" > select "remove owner / delete team"
> click the owner you want to remove and provide a reason. You can then return to the league standings and select "invite new
owner".
If you click it once, it will only remove the owner, not delete the team. If you go back and hit that button after the owner has been
removed, the team will delete.