NAI Mertz Corporation
Ten Penn Center
1801 Market Street

Philadelphia, PA United States 19103
t(856) 335-1080 f (856) 234-4957
John
Adderly
Executive Vice President - Managing Director

Specialties: Investment, Office

Background & Experience
John Adderly has an extensive history of acquiring, financing, selling, leasing, and managing premier office and flex properties portfolios with some of the nation’s leading real estate investment firms. John has overseen the leasing, acquisition, disposition and property management for numerous top-tier investments and has a strong track record of enhancing portfolio performance and driving corporate growth.

John’s extensive experience in leasing, acquisitions and dispositions will allow him to deliver unique insights and perspectives to clients whether they be a Landlord, Tenant, Buyer, or Seller.

Most recently, 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, the portfolio outperformed the market both in occupancy and rental rates in all of its represented markets.

Prior to that, John held Senior Vice President positions with both The Arden Group and The Rubinstein Company. With both firms, he held full responsibility for acquisition, disposition, financing and joint venture structuring for national portfolios.

Earlier in his career, John served as Senior Vice President for Brandywine Realty Trust. At the time he joined Brandywine, the firm had 4 assets and a market capitalization of $10 million. At the end of his tenure with the firm, Brandywine had over 240 assets and a market capitalization of over $3 billion establishing it as a dominant company in multiple markets.
Education
Temple University, B.S. Accounting
Professional Associations & Designations
- Licensed Real Estate Salesperson, NJ, PA & FL
- NAIOP - Past Chairman, Capital Markets Forum & Leasing and Marketing Forum; Past Board Member, Greater Philadelphia & New Jersey Chapters
- Businesses Committed to South Jersey (Formerly BC2)- Past Treasurer & Board Member
- Jefferson Bank, NJ - Past Advisory Board Member
- Philadelphia Business Journal - Winner, Best Suburban Office Lease
- Philadelphia Business Journal - Winner, Best Suburban Office Sale

Latest Blog Posts

Visit This Blog

Quick Hits: Interest Rates & Oil Prices

Wed, 31 Aug 2016 13:09:59 +0000
Last week’s speech by Fed Chair Janet Yellen offered some clues about the timing of an interest rate rise. It seems September has become a possibility (50% in my eyes), but this will also be determined by Friday’s August employment number. There appears to be a stable supply of capital from banks, portfolio lenders, and

New Commercial Real Estate Listings – Dec. 18

Fri, 18 Dec 2015 07:27:18 +0000
‘Tis the season for retail! Fittingly we have two new retail listings that can check off every item on the wish list of a retailer – high traffic locations, great visibility, and excellent demographics. Newly Constructed Retail / Office Plaza Address: 364 Berlin Cross Keys Road | Williamstown, NJ A 2,100± SF retail / office suite is available

New Listings: 12/6 – 12/11

Fri, 11 Dec 2015 14:39:20 +0000
New commercial real estate listings throughout southern New Jersey, greater Philadelphia and northeastern PA this week at NAI Mertz: 56,500 SF Warehouse for Lease Address: 1660 Suckle Highway | Pennsuaken, NJ Broker(s):  Scott Mertz | +856.234.9600 14-38 AC in Hazelton Address: Oak Ridge Rd & Green Mountain Road | Hazle Township, PA Broker(s):  Dave Weaver & Steve Cole | +5700.820.7700 Former Big

Fri, 04 Dec 2015 15:56:52 +0000
New commercial real estate listings at NAI Mertz this week throughout southern New Jersey and greater Philadelphia: Office/Retail Development Opportunity Address: 1324-1326 N Delaware | Paulsboro, NJ 08066 Broker(s):  Julie Kronfeld & John Brown | +856.234.9600 Office/Flex in Bensalem Address: 984 Bristol Pike | Bensalem, PA 19020 Broker(s): Jeff Licht & Adam Lashner | +1 215.396.2900 Office/Flex in Trevose Address: 210 Andrews Road | Trevose, PA 19053 Broker(s): Jeff

New Listings 11/2 – 11/6

Fri, 06 Nov 2015 15:25:27 +0000
New commercial real estate listings at NAI Mertz this week throughout southern New Jersey and greater Philadelphia: Office/Retail at Route 38 at Chestnut Street Address: 100 Chestnut Street | Cherry Hill, NJ Broker(s): Jeff Sloan | +856.234.9600 New Availabilities at Eastgate Business Center Address: Gaither Drive | Mount Laurel, NJ Broker(s): Rebecca Ting & Julie Kronfeld | +856.234.9600 120,000 SF Distribution Warehouse Coming Q3 2016 Address: 300 Bordentown-Hedding

New Listings: 10/26 – 10/30

Fri, 30 Oct 2015 14:48:04 +0000
Downtown Woodbury Office Building for Sale Address: 28 Cooper St | Woodbury, NJ Broker(s): Rebecca Ting & Julie Kronfeld | +856.234.9600 12,000 SF Office Building for Sale or Lease Address: 3140-3160 Tremont Ave | Trevose, PA 19053 Broker(s): Zena Charokopos | +1 215.396.2900 Newly Renovated Warehouse with Fenced Yard for Lease Address: 9105 Collins Avenue | Pennsauken, NJ Broker(s): John Brown & Scott Mertz | +856 234 9600 Medical/Office/Retail

Adam Lashner of NAI Mertz Receives Prestigious SIOR Designation

Fri, 23 Oct 2015 14:21:38 +0000
NAI Mertz, a leading full-service commercial real estate firm serving southern New Jersey and greater Philadelphia, announced today that Vice President, Adam Lashner, has earned an SIOR designation from the Society of Industrial and Office Realtors ®,the leading professional commercial and industrial real estate association.  The prestigious SIOR designation is a professional symbol of the

NAI Mertz Makes $10,000 Charitable Donation to Habitat for Humanity of Burlington County, NJ

Tue, 13 Oct 2015 19:26:18 +0000
NAI Mertz, a leading full-service commercial real estate firm serving southern New Jersey and greater Philadelphia, recently presented Habitat for Humanity of Burlington County, New Jersey, with a $10,000 charitable donation. “Habitat for Humanity is an outstanding organization that truly helps make a positive impact in our community,” said Barry Mertz, CEO of NAI Mertz.

New Listings: 9/28 – 10/2

Fri, 02 Oct 2015 14:47:03 +0000
New commercial real estate listings throughout southern New Jersey, greater Philadelphia and northeastern PA this week at NAI Mertz: Sublease on Cooper River Address: 6981 North Park Drive | Pennsauken, NJ Description: A 2,927 SF fully-furnished office suite is available for sublease in a mid-rise office tower located along Cooper River Park. Recently renovated with modern finishes

New Listings: 9/7-9/11

Fri, 11 Sep 2015 15:06:08 +0000
New commercial real estate listings in southern New Jersey and greater Philadelphia this week at NAI Mertz: New Cherry Hill Office Availability Address: 1909 Route 70 | Cherry Hill, NJ Description: A 2,990 SF office suite is now available for lease on the first floor, featuring private window-lined offices, bullpen and storage. The building is ideally located