Jeffrey Paul Wiener, a lifelong New Jersey resident who led Kislak Commercial Real Estate as president for 17 years, died July 9 at 75 after a long battle with progressive supranuclear palsy.

Across his tenure at the longstanding Woodbridge-based commercial real estate brokerage, Wiener was a top salesperson. After stepping down from the leadership post, Wiener remained active in the business he loved for many years.

“Jeff began his very successful real estate career at Kislak in 1973 and was president from 1995–2012. For many years, he was also Kislak’s top salesperson and remains one of the all-time most successful brokers of multifamily properties in New Jersey. He was a fun, generous and eccentric friend, mentor, and colleague to many of us. We will miss him dearly,” Kislak CEO Jason Pucci shared with NJBIZ.

Travel and Scrabble

Weiner was born June 12, 1950. A graduate of Tulane University in New Orleans, Wiener began his successful real estate career at Kislak in 1973, following a stint on Wall Street.

Outside his work, Wiener had many interests, including playing golf, tennis – as well as Scrabble. The avid player belonged to many Scrabble clubs over the years. He also loved to travel, enjoying cruises and trips with friends and family.

The Villa at The Arizona Biltmore Hotel was his “happy place,” where he enjoyed playing golf and entertaining. More recently, he enjoyed his condo in Boca Raton, Fla., with his longtime partner Karen Marra.

Wiener is predeceased by his parents, Benjamin and Louise Wiener. He is survived by many, including his son, Mark Wiener; his daughter Lindsay Ronan and husband Robert; his grandson Connor; his sister Susan Ullrich and husband Richard; his brother David Wiener  and wife Ellen; his ex-wife and dear friend Maureen Wiener; and many nieces and nephews.

A celebration of life will take place July 13, 2025, at 11:30 a.m. at Robert Schoem’s Menorah Chapel in Paramus.

In lieu of gifts, donations to Wiener’s favorite charity – hopeandheroes.org – are requested. The nonprofit funds research for pediatric cancer as well as clinical care to children in need.

Wiener’s full obituary is available here.