John Adderly
Executive Vice President
Managing Director
o +1 856 335 1080
f  +1 856 234 4957
c +1 609 790 0028

Scope of Services

John Adderly brings the perspective of the corporate real estate executive and investor to the benefit of clients.  John has extensive experience leasing, acquiring and disposing of assets which enables him to deliver unique insights and a beneficial perspective to landlords, tenants, buyers or sellers. An accountant by education, his attention to detail and the bottom line is an asset to realizing performance objectives.

John has managed premier office and flex portfolios for some of the nation’s leading real estate investment firms.  Among his many credits, John is known for a strong track record of enhancing portfolio value while driving corporate growth.

Background & Experience

John served as Vice President of Mack-Cali Realty Corporation with full responsibility for leasing and property management in the Mid-Atlantic Region.  He had direct oversight of 74 office and office/flex properties totaling 5.5 million square feet and an additional 1.5 million square feet of development sites.  Under John’s direction occupancy and rental rates outperformed the market and in aggregate for each region represented.

Prior to Mack-Cali John served as Senior Vice President with firms including The Arden Group, Brandywine and The Rubinstein Company where he had full responsibility for acquisition, disposition, financing and joint venture structuring for national portfolios.  When joining Brandywine the Trust had 4 assets and a market capitalization of ten million dollars. By the end of his tenure there were over 240 assets in the portfolio with a market capitalization of over three billion dollars which established the firm as a dominant company in multiple markets.


Bachelor’s Degree in Accounting
from Temple University, Pennsylvania

Professional Associations & Designations


  • Licensed Real Estate Agent, New Jersey, Pennsylvania & Florida

  • Winner – Best Suburban Office Sale, Philadelphia Business Journal

  • Winner – Best Suburban Office Lease, Philadelphia Business Journal

  • Past advisory board member, Jefferson Bank, New Jersey

  • Past Treasurer & Board Member, Businesses Committed to Burlington County

  • NAIOP past board member, Greater Philadelphia & New Jersey chapters

  • NAIOP Past Chairman, capital markets forum & leasing/marketing forum

Strategic Clients

  • Strategic portfolio management

  • Investment sales & leasing

  • Asset management

  • Property management

  • Financing

  • JV structuring

  • Consulting/advisory

21 Roland Ave, Mt Laurel, NJ 08054