I quickly bought one piece of property for each character when I was able to do so because I wanted to see what that was about. I later did my first assassination mission and I learned about buying stock in the competing company to potentially double your money.
I completed two assassination missions and got 50% and then 80% gains on the stocks. I got several million dollars spread across the 3 characters, but I'm thinking I should just save my money and keep doubling it on assassination missions. I believe heist missions can also have the same effect since we're stealing from a company.
Should I buy stuff as soon as I have the money or should I save it till I can buy everything? Is it risky to have so much money on hand in case I get wasted and have to pay the revive bills?