Serena is a top real estate broker at Sotheby's. Like her sister Samantha Boardman Rosen and her mother Pauline Pitt, she's also a social fixture and a regular at galas and benefits around town.

Serena is the daughter of financier Dixon Boardman and interior designer/heiress Pauline Pitt, whose great-grandfather, George Baker, founded First National Bank, the institution that later became Citibank. After graduating from Brown-and in between society functions-Serena dabbled in the auction industry, working at Sotheby's and at LuxuryFinder.com during the dotcom era. To date, she's sold over $1 billion at Sotheby's International Realty, leveraging her connections to the Upper East Side trust-fund set to sell property to fellow members of the city's social elite.

Although in her early years at Sotheby's she was known for being more of a social butterfly than a sales powerhouse, these days Boardman is one of the top brokers in the city. (The Wall Street Journal named her the top-earning broker in the country for 2008.) Some of Boardman's notable deals have included Steve Roth's $25 million purchase of Gianni Agnelli's 778 Park apartment; the sale of the 730 Park co-op previously occupied by art collector/trust-funder Adam Lindemann and his then-wife Elizabeth; Jonathan Tisch's purchase of a co-op at 2 East 67th Street for $48 million in 2008; and the sale of real estate developer Ara Hovnanian's co-op at 820 Fifth Avenue for close to its $35 million asking price. Her most high-profile assignment, however, came in the fall of 2009 when she and a colleague were selected by the U.S. Marshals Service to sell the penthouse at 133 East 64th Street that once belonged to Bernie Madoff.

Serena has never married. In 2004, she was listed as one of the Post's most eligible bachelorettes: "Pro: She's blond, beautiful, and rich. Con: You'd better be too, if you want to date her." She lives on East 72nd Street, around the corner from her mom.

[Image via Style.com]