residential real estate company The Corcoran Group Corcoran founded the residential real estate company The Corcoran Group in 1973 with just $1,000 and slowly built it into a $6 billion business.

The inspiring true story of Shark Tank star Barbara Corcoran–and her best advice for anyone starting a business. After failing at twenty-two jobs, Barbara Corcoran borrowed $1,000 from a boyfriend, quit her job as a diner waitress, and started a tiny real estate office in New York City.

Millionaire real estate mogul and Shark Tank investor Barbara Corcoran wasn't top of the class at school - in fact, she has previously called herself a straight-D student. She didn't know it then, but her grades were taking a hit because of her dyslexia.

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Since starting as an investor as “Shark Tank” in 2009, Corcoran said she's closed between 650-700 deals but has only made money on about a third of them. And though so many of her “Shark Tank” investments don't make her money, Corcoran has said in the past that she has no regrets.

80 companies Barbara Corcoran has invested in more than 80 companies throughout her time as a Shark on “Shark Tank,” and she recently revealed the one investment that paid off the most.

Beyond serving for more than a decade as a Shark on "Shark Tank," Corcoran is an author and a podcaster, though she is perhaps best known for founding the real estate company The Corcoran Group in 1973 and turning it into a $6 billion business.

Corcoran wanted to sell her company because she'd achieved her goal: The Corcoran Group was the largest brokerage in New York, she said. “There was nowhere else to go,” she added. So she hired a “big-shot attorney” to help her broker a deal, she said. His first question for her: How much money do you want?

Two weeks after she landed the gig, and a week before the show was set to film, Corcoran said she got a call informing her the producers decided to go with a different female investor. But Corcoran didn't take the rejection without protest. “I was embarrassed.

“I don't do the show to get the best investments. And I don't always invest because I think I'll make money. Sometimes my deals are purely to help someone or send a message.”

Using a $1,000 loan from her then-boyfriend, she co-founded the Corcoran Group, a real estate company that became an empire in the industry. By the time she sold her billion-dollar business to NRT Incorporated, a subsidiary of the National Realty Trust, in 2001, Barbara Corcoran's net worth had peaked significantly.

It's The Comfy." Since starting as an investor as "Shark Tank" in 2009, Corcoran said she's closed between 650-700 deals but has only made money on about a third of them. And though so many of her "Shark Tank" investments don't make her money, Corcoran has said in the past that she has no regrets.