Frank Gallinelli is the founder and president of RealData, Inc. (www.realdata.com), a real estate software firm offering analysis and presentation tools for investors and developer...view moreFrank Gallinelli is the founder and president of RealData, Inc. (www.realdata.com), a real estate software firm offering analysis and presentation tools for investors and developers since 1981. A graduate of Yale University, he is the author of several books on real estate investing and finance, including "What Every Real Estate Investor Needs to Know About Cash Flow..." and "Mastering Real Estate Investment." Gallinelli now serves as an adjunct assistant professor in Columbia University's Master of Science in Real Estate Development program, where he has taught real estate investment analysis since 2003.view less