Barbara Corcoran founded her eponymous brokerage with a $1,000 loan in 1973 and sold it for $66 million in 2001, before turning around and making even more headlines as an investor on Shark Tank. How did Corcoran build her business, and her name, into a nationwide brand? Our videos lay out her path to success. Watch the first video here, and the full series on TheRealDeal.com.