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Heskell Advisors Team

Heskell Advisors Team


Ranked in the top 1% of all agents and teams nationwide.


Buyer's Agent
Listing Agent
Property Development
About Heskell Advisors Team
It is with great excitement that we announce that the HESKELL ADVISORS TEAM (“HA”), an industry leading team of real estate agents, has joined the powerhouse real estate agency Compass. HA’s mission is to provide a higher tier of Hamptons real estate service utilizing the teams 45+ years of real estate sales, law practice, land use analysis, design and development experience. Our vision is to represent clients selling, purchasing, investing, developing or renting, utilizing our collective experience to analyze and identify specific issues and/or opportunities, related to each property we evaluate, thereby avoiding potential pitfalls and facilitating a more seamless, efficient process for presenting properties to our clients, while simultaneously sharing our extensive knowledge of the local marketplace, to achieve the desired outcome.

Leading the team is MARC HESKELL, with sales nearing One Billion and 18+ years as a top producing agent, he is consistently ranked in the top 1% of agents and teams nationwide, coupled with his MBA and advanced studies in architecture and design at NYU, years of estate/project development and 15 years in investment banking have served him well, as Marc brings his superb marketing and selling expertise along with the creativity, designer's eye, financial acumen and negotiating skills to best serve our clients. 

ALAN SOSNE’s decades of practicing real estate law in Bridgehampton, participating in thousands of real estate transactions from Remsenburg to Montauk, and personally developing numerous properties, have afforded him unparalleled experience and expertise in all matters related to purchasing, selling, evaluating, investing and developing real estate in the Hamptons.

Alan has also assisted clients with analyzing what can be achieved with various types of properties, be it waterfront, with encroaching wetlands, if merged lots can be subdivided, requiring a variance to achieve the desired outcome and much more.

It is this depth of experience that has made Alan an invaluable resource to the team as HESKELL ADVISORS consistently demonstrates it is the best student of the properties we represent and evaluate. Maximizing value for sellers, by provided a clear and dynamic understanding of what exists and what can be achieved when listing a property and expertly guiding a buyer through the purchasing process, nuances and potential issues to achieve the best outcome, thereby realizing their goals and dreams.

HESKELL ADVISORS TEAM’s (HAT) mission is to create a new, higher tier of Hamptons real estate advisory services through our team’s combined 45+ years of real estate law, real estate sales practice, land use analysis, design and development acumen, plus the unparalleled marketing resources provided by COMPASS. Our vision is to represent clients purchasing, selling, investing, or renting. Utilizing our collective experience we identify, analyze, and define specific issues and/or opportunities related to each property. This facilitates a more dynamic and efficient assessment process while avoiding potential pitfalls and simultaneously sharing our seasoned and extensive knowledge of the local marketplace with our clientele.

The real estate market in the Hamptons is dynamic and ever-changing, it is imperative that your advisor understands all aspects of this marketplace. Real estate is our passion and HAT has and will continue to study market trends. Our extensive knowledge of Town and Village codes and regulations, and the intricacies of wetlands and waterfront properties, enable us to best serve our clients with expertise rarely found in real estate advisors.

ALAN and the team welcome the opportunity to discuss your needs and will go above and beyond to achieve your desired outcome.

BENJAMIN SOSNE, born in East Hampton and raised in Southampton, has extensive knowledge of the Hamptons real estate market. As an active member of the Hamptons community, he is an excellent resource to speak about emerging neighborhoods, secluded beaches and enjoying everything our beautiful life on the east end has to offer. He is very knowledgeable regarding the construction process and helping clients achieve their desired outcome. HA’s collective years of experience and depth of expertise represents an unparalleled level of local real estate resources on the East End. 

The real estate market in the Hamptons is dynamic and ever changing. It is imperative that your agent/advisor understands all aspects of the marketplace. Real estate is our passion and HA has and will continue to study trends, which coupled with our extensive knowledge of Town and Village codes and regulations, along with wetlands and waterfront requirements, enables us to serve our clients with acumen heretofore rarely found in real estate agents. 

We pride ourselves on the ability to listen carefully to the clients' objectives and going above and beyond to realize the desired outcome.

Client Testimonials

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"We owned a house on the water on Brennans Moor in Water Mill. The house was designed for us by a local architect who was a protege of Norman Jaffe. We had the home for over 30 years, with such wonderful memories including having our daughter married there. When it came time to sell, we interviewed several brokers and chose Marc Heskell. He turned out to be an excellent choice. This process started five years before we actually listed the property. In preparation for presenting the property to the market, Marc and his team conducted an extensive analysis of all aspects, including land use analysis, wetland flagging, documenting what could be built, etc. He was pleasure to work with and extremely knowledgeable. He and his team curated an extremely compelling presentation of the property and its potential. The house sold in just few weeks for substantially more than our asking price due in large part to his efforts. He was a invaluable asset to us and I unhesitatingly recommend him."

"Marc is a consummate real estate professional and has an incredible eye for detail and value. He went the extra mile in every aspect of the process from selecting neighborhoods, identifying potential wetland and easement issues, through inspection and closing. From the early days of our relationship, Marc made us feel like lifelong friends and had our back at every possible corner without ever putting any pressure on us to transact whatsoever. We couldn't possibly speak more highly of an agent or a new home purchase experience. Marc seems to know and understand the micro markets in all areas of the Hamptons, and we couldn't endorse him with any more confidence or conviction. Also, Marc was invaluable in recommending the key parties that helped us redefine the property, including an excellent builders, landscape designers, subcontractors and more. "

"We originally met Marc at an open house for a waterfront property he represented. The house was not for us, but Marc took our information and diligently followed up. He put the time into getting to know us and understand what we were looking for as a family in terms of type of property, neighborhood, and budget. He stuck with us and patiently showed us many properties over a period of over three years. One day we got a call from Marc that a property, which we loved but had been out of our price range, was being taken off the market. He advised us to make an offer we felt comfortable with and was able to negotiate a price significantly lower than the original asking price. Marc has also been instrumental in helping us renovate our home, introducing us to several builders, landscape architects, designers and more, so we could hear from different viewpoints and decide which most suited us. With Marc's help we have been able to transform the property he helped us buy and guided us through the process each step of the way. Marc is a consummate professional and knows the Hamptons inside and out. We are extremely grateful to Marc for finding us and helping reimagine our property as if it was his own."

"My husband and I decided it was time to look for a vacation beach home. We found a listing we really liked online and decided to call the broker. Little did we know the broker we were calling was an expert in Hamptons real estate! That broker was Marc and he unfortunately broke the news that his bayfront listing had just gone into contract. Marc assured us we would find something else! Marc was an amazing resource for real estate in the Hamptons, he knew specific village, town and environmental requirements and helped guide us to an informed decision. During a very competitive landscape and limited inventory of waterfront properties, Marc was able to help us find our dream home on the ocean! He went above and beyond in all aspects of our transaction, finding us the best attorney, insurance agents and contractors. He immediately made us feel very welcome to enjoying our living out East! We are grateful to call him a fabulous realtor and friend. "

"It has been an absolute pleasure working with Marc and his team over the past few years, starting from the initial purchase of our home in East Hampton to the subsequent annual rental process. Marc’s understanding of the local housing market enabled him to show us homes that aligned with our specific needs, emphasizing quality over quantity. They provided us with support and guidance during every stage of the home-buying process with his meticulous attention to detail and personal dedication. Even after the closing, Marc's commitment remained unwavered with him introducing us to local businesses and professionals. Marc and his team’s excellent work now continues as he skillfully negotiates on our behalf the best deal for the rental of our home. His genuine passion for his work and clients is evident as he consistently goes above and beyond the expectations of a real estate agent. "

"In the sea of real estate agents, only the best stand out! Marc is definitely the best and we are so grateful for him. He’s honest and loves what he does and it shows. We had only rented previously in the Hamptons and did not know the area that well so we needed someone who was extremely knowledgeable before we purchased in the Hamptons. He was recommended by a real estate agent in New York City who heard that he had a great reputation, so we entrusted him to help us buy a home. He not only found us are dream home, he was super patient, stayed within our budget, and guided us through the entire sale with super ease. He was never pushy and in fact, talked us out of another house that was more expensive because he felt we would get better value and be happier in the house that we are in. We have referred them to close friends of ours, and they said exactly the same thing. We highly recommend him and know that you will be so happy working with him because he is the best and such a nice guy. "

"Our family recently purchased a home in East Hampton. The purchase was complicated, and Marc’s team did an incredible job helping us navigate it. Right from the start we knew he was different than other brokers. He cared to get to know our family and what was important to us in purchasing a home. Each house he showed us made sense and Marc remained patient and determined until we found the right one. Their knowledge, experience and attention to detail was an asset from the beginning of the process to close. In addition, Marc continues to be someone we rely on. He’s always available for any questions, help or issues that pop up. We love our house and are very grateful for all Marc and his team did.

We would highly recommend them to anyone looking to buy, sell, rent or invest in the Hamptons.

"Selecting a listing agent to sell my mother’s home was a difficult decision. I interviewed several agents from different agencies and I’m really glad to have had the opportunity to work with Marc and his team. From the start, Marc provided clear communication and identified key aspects relevant to the market. The team’s due diligence and knowledge of critical facts related to the property were essential to the successful sale. For example, getting the land use analysis completed before listing was very smart and effective. Marc was fully prepared, so he had the answers on hand when the buyers appeared. I appreciated the work they did to carefully curate the listing. But moreover, Marc went above and beyond assisting with all aspects of preparing the property, landscaping, freshening the interior, staging, etc. Throughout the process they were attentive and courteous to the needs of my family with great communication. I am sincerely grateful for the opportunity to work with Marc and his team. "

My wife and I were both born and raised in Sag Harbor and shared the common dream of having our forever home in North Haven. While standing in the driveway of the house that we desired, our very first phone call was to Marc. After knowing him for many years we trusted him implicitly in what we knew could be a long drawn-out short sale process. While at times we thought we would have to give up, Marc stayed the course. His knowledge, compassion and can-do attitude is what has us in the house we have called home for nine years. He is not only deeply experienced in the world of real estate, but all that comes along with it. His commitment to his work and clients speaks for itself.

For us, there is only one real estate agent in the Hamptons. Marc Heskell.


Team Agents

Heskell Advisors Team’s Listings

a view of a patio with couches chairs potted plants and wooden floor
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a house with trees in front of it
a view of house with backyard outdoor seating and green space
a view of a patio with couches chairs dining table and chairs
a living room with furniture and a floor to ceiling window
a living room with furniture and a table
a view of a dining room with furniture large windows and wooden floor
a living room with furniture and window
a open kitchen with a table and chairs in it
a view of a dining room with furniture window and wooden floor
a living room with furniture and a fireplace
a view of an entryway with wooden floor
a bedroom with a bed and large window with balcony view
a bedroom with a bed and a large window
a large white kitchen with stainless steel appliances kitchen island granite countertop a sink and cabinets
a spacious bathroom with a bathtub and mirror
a spacious bathroom with a tub shower and a sink
a bathroom with a bathtub and a shower
a work place with a large window
a view of swimming pool with lounge chair
a view of an outdoor sitting area with furniture
a patio with table and chairs and potted plants
a view of a patio with table and chairs potted plants with wooden floor and fence
a view of a patio with table and chairs with wooden floor and fence
a view of a house with a backyard porch and sitting area
a front view of a building with garden
a view of a house with a yard
a view of a house with a big yard and large trees
an aerial view of a house with outdoor space
an aerial view of a house with a yard
Listed By Compass


Square Feet
Listed By Compass


Square Feet
a view of a large house with a tree in the yard
a backyard of a house with lots of green space
a view of a street with a yard and a large tree
a view of a yard with a tree
a view of a house with a backyard
Listed By CompassContract


Square Feet