Jeffrey E. Kelter

JEFFREY E. KELTER has been President of Keystone Property Trust
since December 1997 and was appointed Chief Executive Officer in
December 1998. He has over 20 years of experience in all phases
of commercial real estate including development and third-party
management. Mr. Kelter began his career at Bankers Trust
Corporation where he was an assistant treasurer in the Corporate
Finance division. In 1982 Mr. Kelter was employed by Vector
Properties in Tulsa, Oklahoma, where he was in charge of the
development and finance of several downtown Tulsa office building
renovations. In 1982 Mr. Kelter founded Penn Square Properties,
Inc. in Philadelphia and served as Chief Executive Officer and
President. At Penn Square he developed, owned, managed and leased
more than 4.5 million square feet of office and warehouse
projects throughout the Pennsylvania and New Jersey markets.