Mark Simpson REALTOR®

Portrait photo of Mark Simpson

Portsmouth, NH

77 Hanover St Unit 22
Portsmouth, NH 03801

Office Phone: 603-431-8977



  • In today's sophisticated real estate market, choosing a realtor is a very important decision, given the complex issues surrounding real estate transactions and the unexpected challenges that could adversely affect the finality of a contract. Since real estate agents generally function as independent contractors within an agency, the professionalism, integrity, knowledge, business sense and level of service one would likely expect depends primarily on the ability of the individual agent, not the agency.


  • Licensed in New Hampshire & Maine
  • Representing both Buyers & Sellers
  • Residential & Commercial Sales
  • Luxury & Waterfront Properties
  • Condominiums
  • New Construction
  • Land & Development
  • Residential & Commercial Leasing


  • Over thirty-five years of real estate related experience
  • Lifetime resident of the seacoast region
  • Active member of the local business community for over thirty-five years
  • Extensive business experience encompassing management, contract negotiation, sales, marketing, advertising, lending, finance & real estate
  • Served in various Banking Senior Management capacities including:  Corporate Director, President & Chief Operating Officer, Executive Vice President, Vice President & Treasurer, Vice President of Shareholder Services, Assistant Vice President


  • Served as a Member & President of The Woodlands Homeowner's Association for 8+ years
  • Investment Advisor & Administrator for The Society for the Care of the South Cemetery Trust since 1982
  • Member of the Seacoast Board of Realtors since 1998
  • Served on the Seacoast Board of Realtors Finance Committee for 5+ years
  • Member of the New Hampshire Association of Realtors since 1998
  • Member of the National Association of Realtors since 1998 
  • Member of the New Hampshire Multiple Listings Service (MLS) since 1998
  • Member of the Maine Multiple Listing Service (MLS) since 2000
  • Served as a Member & Chairman of the Portsmouth Economic Development Commission for 6+ years
  • Served as a Member of the Portsmouth Rotary Club for 10+ years

Service Areas

Greenland, NH, New Castle, NH, Newington, NH, Rye, NH, Exeter, NH, Stratham, NH, Kittery, ME, North Hampton, NH, Durham, NH, Portsmouth, NH, Brentwood, NH, Eliot, ME, Hampton, NH, Newmarket, NH, Dover, NH

Ask Mark Simpson


Mark was recommended by our lawyer, Jack McGee. From the moment we met Mark and Kelly, we found them to be very nice, honest, and helpful. We felt very comfortable with them and felt that they would work hard to get us the best price for our house as they could. We live in Massachusetts and the house we were selling is in Portsmouth, N.H. so I made a lot of calls to Mark with questions that I had, and he always answered when I called and always either had the answer right then or would find the answer and get right back to me. We felt that we could trust him, as he was always respectful of us and of the house that he knew held a lot of memories for me. We would recommend Mark very highly, and we appreciate everything he did for us. Sincerely, Sharon and Don Foss w

- Sharon Foss, Trustee

Property Specialties

55+ Communities, Bank Owned, Commercial, Fine Homes, Golf Communities, Historical Homes, Investment Properties, Multi-Family, New Construction, Waterfront Homes