Our Team

Barry L. Haase, Chairman and Chief Executive Officer of Diversified is responsible for acquisitions, financing, and the oversight of site management and expansion. Mr. Haase holds a B.B.A. from the University of Massachusetts and received an L.L.B. degree in 1962 from George Washington University School of Law. Mr. Haase was a Staff Attorney with the United States Securities and Exchange Commission in Washington, D.C. from 1967 to 1970 and Vice President and General Counsel of A.G. Becker, an investment banking firm, from 1970 to 1977. Mr. Haase was Director of the Office of Pipeline and Producer Regulation of the Federal Energy Regulatory Commission from 1977 to 1979 and a practicing attorney in Washington, D.C. from 1979 to 1986.

From 1987 to 1992, Mr. Haase has served as President and CEO of Diversified Partners, Inc. which acted as co-general partner with one of the nation's largest owner/operators of mobile home communities. In 1992, Diversified Partners merged with Ellenburg Capital Corporation ("ECC") as a 25% Noteholder and President. From 1992 through 1996 ECC was engaged in the acquisition, development and management and operation of mobile home communities and recreational vehicle parks. In 1997, Mr. Haase arranged for the sale of a majority of the ECC portfolio of mobile home communities to Manufactured Home Communities, a NYSE listed Real Estate Investment Trust. The transaction involved 38 parks valued at over $350 million.

Mr. Zweig is responsible for all property, asset management and operations, including staffing, marketing, operating budgets and overall P/ L management and financial operating results. Mr. Zweig has more than 35 years of experience in all aspects of asset and property management. From 1998 to 2006 he was the Senior Vice President and Head of the Eastern United States for Apartment Investment and Management Co. (NYSE:AIV) one of the largest fortune 500 American REITs, with responsibility for over 26,000 residential units and retail assets in 16 states. His division represented 40% of the REIT’s total NOI and generated more than one half billion in revenue and over $200 million in NOI annually. Prior to AIMCO, Mr. Zweig was associated with several prominent New York-based real estate investment and development companies including Lawrence Properties and Rockrose Development Corp. He most recently was President of Urban Investment Partners and was a Managing Partner at Redbrick Partners – both in Washington, DC. UIP is a property and asset management firm specializing in value added projects in the District of Columbia. Redbrick is an investment and management firm where Mr. Zweig and his partners created and managed a variety of closed end opportunity funds focusing on the single family housing sector.

Mr. Zweig is a graduate of Binghamton University; is a licensed New York real estate broker and holds the CPM accreditation from the Institute of Real Estate Management. From 2012 – 2015 he was a pro-bono advisor to a 501(c)(3) non-profit that managed and developed affordable housing across northern VA. The portfolio included group homes, permanent supportive housing and transitional housing for returning veterans and those working out of homelessness. Mr. Zweig was an adjunct faculty member at the New York University Schack Institute of Real Estate and just recently completed his second term as a member of the Board of Directors of the Property Management Association of Washington DC.