About Oak Tree

Oak Tree Development Group is a privately held, real estate development and investment company located in Lancaster, Pennsylvania. Oak Tree Development Group has played a major part in the economic growth of Lancaster County since 2005. Contributions to the local economy include: creation of sustainable projects for the community; the addition of hundreds of new jobs; refurbishment of unproductive properties; formation of successful private / public partnerships; and adding much needed additional property tax revenues. Our portfolio contains approximately 1.15 million square feet of office, industrial/flex, hotel, retail, medical and multi-family space in Lancaster County – all managed locally, by our team of capable professionals.

Oak Tree Development Group is a highly capable commercial and industrial Real Estate Developer in Central Pennsylvania. Our ability to react quickly to tenant space requirement by producing viable options in both new or existing space is unmatched in our marketplace.

Our team is dedicated to excellence and fairness in conducting our business with our tenants, strategic partners, lenders, professional consultants, municipalities and other valued vendors. Our company is dedicated to improving our community through the development of high quality, sustainable projects.

Michael J. O'Brien

Michael J. O’Brien

Michael J. O’Brien, has been a real estate executive for over 30 years. He has been involved in site acquisition, development, construction, sale or leasing and management of over 14 million square feet of commercial, industrial, hotel and multi-family residential projects. As President of Oak Tree since 2005, he has focused on delivering projects that meet both market and portfolio needs while maintaining a strong client and value based company culture.

Eric Scott

Mr. Scott is a top-level results-oriented strategy, planning, and process leader with a comprehensive real estate skill set including development, brokerage, business development, commercial construction, project management, design, and finance on mid-Atlantic projects totaling over a half billion dollars.

Originally from the Philadelphia area, Mr. Scott earned a Bachelor’s degree in Architectural Engineering from Penn State and began his career in Maryland as a project manager with two of the nation’s largest commercial construction contractors.  After earning his Master’s in Finance & Strategy, Mr. Scott returned to Pennsylvania and made the transition to real estate development.  Prior to joining Oak Tree Development Group in 2015, Mr. Scott held senior management positions with a leading national industrial developer and a diversified full-service regional real estate firm.


Ian Ruzow, Steve Zuckerman, Bob Zuckerman and Rob Liss, are co-founders and principals of Oak Tree Development Group. In 2004, after selling their ownership in Clipper Magazine (a national direct-mail advertising company) to the Gannett Co., the principals, as part of a strategy to diversify their financial asset base into real estate, formed Oak Tree Development Group with Mike O’Brien. Since Oak Tree’s inception, the principals have played a strategic role in the major financial decisions of the company involving: property acquisition, debt placement, managing key institutional and partner relationships, portfolio management, market strategy and company direction.

Ian Ruzow Ian Ruzow
Steve Zuckerman Steve Zuckerman
bob-zuckerman Bob Zuckerman
Photo not available Rob Liss