I don't have personal experience with a windfall of that size, but I've found that Bogleheads usually has decent advice: https://www.bogleheads.org/wiki/Managin

I don't have personal experience with a windfall of that size, but I've found that Bogleheads usually has decent advice: https://www.bogleheads.org/wiki/Managing_a_windfall https://www.bogleheads.org/wiki/Managing_a_windfall