This is a great thread. Throwaway also. Gonna write some stream-of-consciousness here, because I have to start my work day, but I personally made approx. this amount from an exit, and it has gone very well for me and my family (wife + 3 kids). Some additional fine-tuned advice of what worked for me: (1) don't be afraid to spend money - high hourly rates - for a good accountant and good tax attorney. (2) if I were you…
Re the 1% thing: might be worth it. Lots of people chase returns and pick risky investments. Instead of picking a diversified portfolio of index and/or blue chip stocks and sticking with it, they "play" the market, and almost never beat it. The 1% to a wealth advisor saves you from yourself. Of course, milage will vary
Completely agree that if OP wasn't previously a skilled investor with a track record of beating the market (extremely unlikely), that they shouldn't now try to become one.
With this amount of money, they've "won the game" and have no need to beat the market. They only need to match the market over the next 50 years. That can be done very simply, reliably, and cheaply.