One of the (fairly conservative) rules of thumb for retirement planning is that you can withdraw 4% of a well-invested portfolio every year forever, baring a civilization-ending cataclysm. Whether in the form of interest, dividends, or, if needed, a bit of principal. If well-invested it’ll grow about as fast as you pull it out, or faster. Amounting to a perpetual, if not huge, money fountain in your back yard.
Off the $270K post-tax windfall, that suggests you can withdraw about 0.04 * 270K = $10.8K/year. And you’ll need to pay income taxes on some of that money out of that money.
The real killer though is that the actual take-home windfall, after direct taxes on it, is only ballpark 1/4th of the headline number.
Another major reason folks go broke is buying stuff that has ongoing maintenance and insurance costs. “If I buy a big house for cash & have no mortgage, I’ll live for free in luxury”. Wrong.
A big luxo house has tens of thousands of dollars of maintenance costs per year. And ten-plus thousand of property tax. And ten thousand of insurance costs. Per year every year. So much for free.
Fancy cars are the same way. A friend of mine in the car biz took in a late model Rolls Royce as payment for an outstanding debt somebody owed him. So he got the Roller free and clear; no loan. He really liked the car. He did not like the $2K per month cost to insure it. He sold it after a couple months. Even free Rolls Royces are expensive to own.
A legal trust structure is a great idea no matter where you live once your assets are non-trivial. Whether you got those assets through hard work, good investing, inheritance, or a lucky lottery win.
As a separate matter …
Many state lotteries prohibit the prize from being collected anonymously. You must give your real name and they must publicize it. It’s a so-called “sunshine” thing to help convince the public that the lottery is not a crooked game won only by crooked insiders.
Other states allow winners to hide behind trusts or attorneys or whatever and remain anonymous.