​One Harbour Place
Suite 12
Portsmouth, NH 03801
Office: 603-427-0700

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 Margaret O'Brien



Margaret O'Brien recently started her own boutique commercial real estate firm in downtown Portsmouth after working thirteen years as a Vice President/Partner of CBRE| Portsmouth office. During her career in the commercial real estate industry, Margaret has successfully completed transactions with total consideration in excess of $ 400 Million. She has consistently been a top performer in the New Hampshire commercial real estate market. She specializes in industrial leasing and property acquisition and disposition.




Significant Transactions:

  • Industrial Lease -65,000 +/- SF manufacturing facility at the Pease Tradeport to Teledyne and remaining 37,400 +/- SF to FlexEnergy.
  • Industrial Lease - 505,000+/- SF warehouse/distribution facility in Seabrook, NH to US Foods, Inc.
  • Industrial Lease- 52,500 +/- SF manufacturing facility at the Pease Tradeport to FlexEnergy
  • Industrial Lease-55,000 +/- SF warehouse/distribution facility in Dover, NH to Kittery Trading Post.
  • Industrial Lease- 81,600 +/- SF manufacturing facility at the Pease Tradeport and a 44,057 +/- SF manufacturing facility in Newington, NH to Westinghouse.
  • Industrial Lease-80,000 +/- SF manufacturing facility in Dover, NH to CRT Processing.
  • Industrial Lease-84,000 +/- SF manufacturing facility in Rochester, NH to Albany Engineered Products.
  • Industrial Lease -77,400 +/- SF manufacturing facility at the Pease Tradeport to Rand Whitney.
  • Industrial Lease -100,750 +/- SF warehouse/distribution facility build to suit for HD Smith Wholesale Drug Company in Stratham, NH.
  • Investment Sale - 367,166 +/- SF Nike warehouse/distribution facility in Greenland, NH.
  • Investment Sale - 206,000 +/- SF Celestica manufacturing facility at Pease Tradeport to Winstanley Enterprises.
  • Investment Sale - 210,821 +/- SF Flextronics facility in Rochester, NH.
  • Investment Sale - 109,000 +/- SF Class A office building in downtown Portsmouth, NH.
  • Office Lease - 56,825 +/- SF world headquarters Bauer Hockey, Inc. in Exeter, NH.
  • Office Lease - 75,000 +/- SF US Passport Center at the Pease Tradeport.

Shari Donnermeyer


Shari has over 25 years of media sales management, marketing, project execution, and instruction experience
• Extensive sales management background with the ability to adapt and succeed in non-traditional environments, mentoring others to do the same
•Hands-on leadership experience in multiple media organizations - newspaper, radio, cable television, digital media
• Highly effective at developing and negotiating new business
• Ability to observe, assess and employ necessary remedies to improve challenging situations
• Respected reputation within industry

Specialties:Deep knowledge of today's traditional and non-traditional media market, including mobile marketing strategies, sales, sales management & negotiation 

Non Traditional Revenue Generation
Sales Force Restructuring- Leadership, Processes & Systems