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Gregory H. Cahill, SIOR
Industrial Specialist
President & CEO, Black Oak Property Advisors, Inc.
One International Place, Suite 1400
Boston, MA 02110
United States
Phone: +1-617-535.7773
Cell: +1-617-538.1128
Chapter:   SIOR New England Chapter
Member Since: 1996
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Gregory H. Cahill formed Black Oak Property Advisors in 2015. Based in downtown Boston, Black Oak provides commercial and industrial real estate services throughout Greater Boston and Southern New Hampshire. Our membership in SIOR (Society of Industrial and Office Realtors – gives us the ability to serve client needs throughout the US and globally.

With over 30 years of commercial/industrial brokerage experience, Cahill has completed a multitude of real estate assignments on behalf of clients throughout the Greater Boston area, the United States, and overseas. His clients have encompassed institutional, local, and regional owners and users.

Major projects have included the representation of Cisco Systems, Inc. in transactions for over 2 million square feet of existing buildings and the largest single commercial land purchase in recent years for a 3 million square foot master planned campus in Boxboro and Littleton, Massachusetts.

Mr. Cahill represented Exodus Communications in multiple transactions, including a long-term lease for 335,203 SF with an aggregate value in excess of $100 million. He was involved in multiple transactions exceeding 400,000 SF on behalf of Princess House (formerly a division of Colgate Palmolive).

Other important relationships have included online grocer ShopLink (over 400,000 SF leased), Solectron (in excess of 275,000 SF leased), and he participated in the corporate relocations of Albany International and Kendall Company (totaling more than 300,000 SF leased).

His team represented the American Red Cross (ARC) of Massachusetts Bay with its disposition of a 90,000 SF headquarters to Beth Israel Hospital, and went on to negotiate on behalf of the ARC the acquisition of two (2) new headquarters (totaling more than 160,000 SF). On behalf of AEW Capital Management, Cahill’s team was responsible for more than 1.8 million SF of leasing, and he represented USAA Real Estate in the complete re-leasing of its single Greater Boston asset (totaling more than 300,000 SF).

A graduate of the College of the Holy Cross (Worcester, MA), Greg began his career while a college undergraduate first leasing apartments and then selling residential homes in the Worcester area. After graduating, he joined the Boston commercial real estate firm, Ryan Elliott & Company, Inc. While there (1981-83), he contributed to the leasing for Copley Place, Boston, a mixed use development including two hotels, retail and 850,000 SF of office. His contributions at Ryan Elliott also involved the sale effort of 1601 Trapelo Road, Waltham, MA, which was successfully repositioned for development as the largest multi-tenant office building on Rte. 128/I-95. From 1983-2007 he was a Senior Vice President of Nordblom Company/ CORFAC International, a full service real estate brokerage, development and property management entity. From 2007-2015, Greg was a Senior Vice President at Lincoln Property Company, Boston. Lincoln Property’s Boston office is a full-service real estate provider of choice, specializing in commercial/industrial brokerage, valuation & consulting, development and construction management.

While at Nordblom Company, Cahill was actively involved in CORFAC International, an international real estate network with member firms throughout North America, South America, Europe and the Pacific Rim. He is a three (3) time recipient of that organization’s largest size R&D transaction, as well as recipient of its largest office referral award. He served on numerous CORFAC committees, and in 2006 was named both Vice Regional Coordinator and Chair of its Professional Development Subcommittee.

Throughout the course of his career, Greg has been quoted in various print media and written numerous articles for publication. He has been a member of the Society of Industrial and Office Realtors (SIOR) since 1996. Membership requires substantial achievement, as well as high ethical conduct and personal integrity. Nationally, he served as Chairman of SIOR’s Research and Publications Committee and is a past Trustee of the SIOR Educational Foundation. He serves on SIOR’s Professional Standards Committee.

Mr. Cahill has been involved with many local civic and charitable endeavors, and has served as a member of New England Baptist Hospital’s (NEBH) Board of Visitors. He is currently a member of NEBH’s Board Finance Committee. He is a past President of the Alumni Association at the College of the Holy Cross. In 2011, he was awarded the College’s highest alumni honor, the In Hoc Signo award. He is a past Corporator of the Rivers School and served as President of the American Lung Association of Boston, Vice President of the Bay State Executive Association, President of the Holy Cross Club of Boston, President of the Rivers School Alumni Association, Co-Chair of the Fessenden School Annual Fund, and Director of South Shore Daycare, Inc. He is a Corporator of USF Bank Corp, the mutual holding company of UniBank for Savings.

  • College of the Holy Cross
M2M Transactions

Donald Mancini, SIOR, CCIM

Kelleher & Sadowsky Associates
Worcester, MA

Gregory Cahill, SIOR

Black Oak Property Advisors, Inc.
Boston, MA

$221,325 Office Lease

Donald represented Sovereign Bank

Worcester, MA - February 15, 2011
Committee History
CommitteeCommittee RoleBegin DateEnd Date
SPB - Distribution and Logistics  1/1/20061/1/2020
SPB - Corporate Services 1/1/20061/1/2020
Professional StandardsMember10/1/20179/30/2019
Professional StandardsMember10/1/20159/30/2017
Professional StandardsMember10/1/20149/30/2015
Professional StandardsMember10/31/201310/30/2014
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