Multi-family properties consist of residential properties with at least 5 units such as properties used by multiple family groups. Leases are usually short-term (1 or 2 years), which benefits the landlord as he can adjust rent with the market rate at the end of the lease. Multi-family properties are defined by their location, either urban or suburban but also their size, and category. This can be either A, B or C according to the quality of the building and the services included. This market is driven by economic factors such as demographic trends and local employment growth. Investing in multi-family properties is called a defensive investment as it aims to minimize risk, which is in this case low since having a place to live is a primary need for everyone.