Real estate guru and consultant Stefan Swanepoel announced his Power 200 List today, a roundup that includes franchise, technology, brokerage, media and other industry executives who influence and shape the real estate business. Top executives with Realogy and major franchisors including Berkshire Hathaway HomeServices, Keller Williams Realty, Re/Max and Coldwell Banker accounted for nearly 20 percent of "the most powerful and most influential leaders in the residential real estate brokerage industry."