Dr Roger J. Brown is a private consultant with more than 40 years experience specializing in solving complex real estate problems. He is the founder of “mathestate”, a proprietary set of data-driven mathematical analysis tools designed to analyze investments using real data and custom formulas. Prior to creating mathestate, he developed a wide range of expertise in investment real estate. From 2001- 2005 he was the Director of Research for the Real Estate and Land Use Institute at San Diego State University. Prior to this, he was General Manager of one of the oldest investment firms in San Diego which has had as many as 100 employees supervising of all aspects of finance, legal, accounting and administration of investment portfolios. Dr Brown continues to write and teach in the fields of real estate investment, finance, appraisal, taxation, analysis and management. He holds a Ph.D. in Business Administration from the Pennsylvania State University (2000), and an MBA (1994) and BA (1970) from San Diego State University.