Statistics suggest that good curb appeal can increase a property's value by up to 7%, which is a significant sum for anyone who has invested in a multifamily unit. However, knowing which exterior upgrades and improvements to make can be a challenge, especially for cash-strapped investors. Joe Fairless, whose firm's success is built primarily on the purchase and resale of multifamily communities, offers some insight into how to improve a unit's curb appeal without overspending.