You get offered Brewster million situation

It's 10x from the the 80's movie you have to spend $300 million in 30 days if you do you get $ 3 billion

The rules are

No assets by the end

You must get fair value for your money (No over paying etc)

You can't damage or distroy property

You can't give more then 5% the charity or lose more then 5% gambling

You can't tell anyone about the challenge

Your other option is $10 million today no strings attached