Final answer:
Income-producing properties generate cash flow primarily through rent from tenants and financing activities like loans or bonds.
Step-by-step explanation:
The two main sources of cash flows from an income-producing property are operating income generated from tenants and the proceeds from financing activities, including borrowing. Operating income usually comes in the form of rent payments, while the financing activities may involve obtaining loans or issuing bonds. By managing these two cash flow streams effectively, property owners can ensure the profitability and sustainability of their investment.