I don't care if you're a buy and hold investor, you're flipping, wholesaling, investing in mobile home parks—it doesn't matter. Related: 6 Ways to Prepare for the Next Market CrashThe more you can have done without you, the more it will be a business. Make sure you understand that you’re running a business with policies, procedures, and structure, and you’re treating it that way. Respect the NumbersSecond, make sure the numbers are dictating the story when you are in a bubble market. When a real estate crash happens or a bubble bursts, that could be the time that you make a decision to buy more real estate.