I want to become an economist and a financial advisor. How many years of school is that?

My goal is to own a business that does economic forecasting as well as finacial advising for individuals. I am just wondering if I can double major, and get one masters degree? Or, would I need 2 masters degrees for this?

Also, I figure this is probably 7 years of schooling…um..any idea of how much money I would have to save up for this?

Financial Advisor Las Vegas