ELIZABETH, N.J. — The Kislak Co. Inc. has negotiated the $4.1 million sale of two properties in Elizabeth, a city in northern New Jersey. The portfolio includes 20 units across two three-story residential buildings. Both buildings rise three stories, and one includes two commercial spaces. Don Baxter and Michael Salomon of Kislak represented the seller in the transaction, and Joni Sweetwood of Kislak procured the buyer. Both parties requested anonymity.