Duplex for sale by owner in Montclair, NJ 07042. Let your Home work for you! Most people work in order to have a home, but this home works for you! Newly renovated, using high-end materials like granite countertops, stainless appliances, and new hardwoods throughout, your new home is virtually maintenance free! This spacious, well laid out duplex is split with 1600sqft on the right, and 800sqft on the left, so you and your family can enjoy a spacious home, while having a rental income of $1200 o... See site for full property details.