Final answer:
A buyer might prepare a financial analysis and market analysis to predict future income of a building.
Step-by-step explanation:
To predict future income of a building, a buyer might prepare a financial analysis. This document would involve analyzing the current and projected revenue streams from the building, taking into account factors such as rental income, occupancy rates, and potential future rent increases. It would also consider the building's expenses, such as maintenance costs and property taxes.
Additionally, a buyer might prepare a market analysis. This document would examine the demand for rental properties in the area, the potential for growth in the surrounding neighborhood, and the overall economic conditions that could impact the building's future income.