Our Team

Marian Bennett’s talented marketing strategies coupled with her dynamic team at Golden Gate Sotheby’s International Realty distinguish her a coveted realtor in the competitive market of the San Mateo County coastal communities.  First and foremost, Marian’s clients are her inspirations and her dedication to building and sustaining positive relationships with them is one of her top priorities. With eleven years of exceeding clients’ expectations in their home-buying and selling experiences, her commitment to their original objective is unsurpassable. From their initial interaction to the weeks following their completed contract, her clients value Marian’s devoted and consistent advocacy throughout their entire real estate experience.  As a realtor who effectively incorporates multi-faceted marketing, Marian’s utilization of smart technology is an extension of her personal philosophy: Learn, Educate and Communicate. When circumstances require clients to undertake a cross-country relocation, or an opportunity arises for a simple move from city to beach, she maintains her clients trust and satisfaction with clear and consistent communication.  Proactively seeking professional development opportunities, Marian provides her clients innovative and progressive tools to maximize their experience.

On behalf of clients wishing to sell, Marian structures comprehensive and creative marketing programs tailored towards their specific goals, emphasizing the achievement of a smooth close of escrow. Clients wishing to purchase receive her undivided attention, encouraging assistance, and structured guidance through every step and stage in their significant decisions. She considers it a special honor receiving client referrals and enjoys accepting these new opportunities to guide and assist in each important real estate investment decision.

As a longtime resident of the San Mateo County coastal area, Marian understands the distinctive and exceptional appeal of the single family homes, condominiums and buildable lots on the coast and the surrounding communities; specifically Half Moon Bay, El Granada, Moss Beach, Montara and Pacifica. With this expertise, she successfully guides new buyers through attractions of the various communities and modifies marketing strategies for each seller based on their specific area. Other speciality skills Marian possesses: negotiation, contracts and disclosures, internet marketing (E-Pro certified) and relationship oriented consultations. Professional credentials she holds including the following –

  • Graduate Realtor Institute (GRI)
  • Certified Negotiation Expert (CNE)
  • Top Agent Network (TAN) Member
  • Seniors Real Estate Specialist (SRES)


  • Half Moon Bay Chamber of Commerce
  • San Mateo County Association of Realtors
  • Silicon Valley Association of Realtors
  • California Association of Realtors
  • National Association of Realtors

 Media: Luxuryrealestate.com   mentions Marian’s new affiliation with Dreyfus Sotheby’s International Realty in their “Who’s who in luxury real estate.”

Theresa Cossman

A longtime Coastside resident Theresa Cossman came to real estate with a varied background.  From running a small boutique to working in online research, web reputation and social media consulting.  Possessing exceptional knowledge of the Internet, SEO and Internet search technologies Theresa has been able to utilize her skills in online marketing in the Real Estate field.

As a social media consultant Theresa helped clients create and develop the perfect internet presence for their business utilizing blogs and various social media websites.  Marian Bennett utilizes Theresa’s skills ensuring each listing has its own extensive online presence and following listing stats. In 2014 Theresa Cossman decided to pursue her Real Estate License.  In January of 2015  Theresa hung her license.

A mother of a senior at Half Moon Bay High Theresa spends time as the web admin for the HMBHS Aquatics Website and chairs the water polo’s biggest fundraiser of the year at the Half Moon Bay Pumpkin Festival.

She also spends time doing voice over for Half Moon Bay’s very own local radio station KHMB.

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