ROSELAND, N.J. — Bergman Real Estate Group and Gottesman Real Estate Partners have acquired 75 Livingston Ave. in Roseland through a joint venture. The sale price was not disclosed. The three-story, 94,000-square-foot office property was purchased from Mack-Cali Realty Corp. Michael DiFede of Bergman and Patrick Leary of Gottesman represented the joint venture in the transaction. TriState Capital Bank provided acquisition financing. The acquisition is the fourth joint venture between Bergman and Gottesman, which plans to invest more than $1.7 million in capital improvements to the building over the next 24 months.