Owning rental properties can be worth it when you purchase a good deal and manage it effectively. Investors control how much money they make with rental properties based on three variables: purchase price, rehab costs, and occupancy. Buying at the right price, controlling the rehab budget, and keeping the property occupied with a quality tenant are key drivers of your profitability. Over time, you'll earn monthly cash flow from rents, pay down your mortgage balance, and increase your equity through appreciation.