This document discusses key factors to consider when doing pro-forma projections for real estate investments, including property taxes, association dues, insurance, interest rates, vacancy rates, and rental prices. It provides an example comparing the cost per square foot and net operating income for 4 different properties, noting that net operating income shows cash flow before debt servicing costs and does not factor in leverage or depreciation benefits. The document encourages visiting JasonHartman.com and listening to his podcast for more information on creating wealth through real estate investing.