About Joan Bischoff

Associate Broker - Greenport Office
Licensed as Joan H. Bischoff van Heemskerck
120 Front Street, Greenport, NY 11944

Email: Joan.Bischoff@raveis.com | Cell: 631.948.0234

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North Fork Luxury Real Estate Experts | William Raveis

Choosing the right real estate representation on the North Fork is one of the most important decisions you will make financially, personally, and often generationally. You deserve professionals who combine deep local knowledge, proven results, strategic judgment, and responsible stewardship of the land.

That is exactly what you gain with Joan H. Bischoff and Nicholas Planamento of William Raveis.

Trusted North Fork Buyer & Seller Representation

William Raveis is the leading independent, family-owned real estate brokerage in the Northeast, known for sophisticated marketing, global reach, and full-service support. With industry-leading digital exposure, in-house mortgage and insurance services, and a powerful referral network, William Raveis provides unmatched resources.

What truly sets a transaction apart, however, is who represents you.

As trusted North Fork real estate agents, we bring personalized guidance, strategic advocacy, and a commitment to excellence to every buyer and seller we represent from first-time purchasers to owners of extraordinary legacy properties.

Record-Setting North Fork Real Estate Sales

In December 2025, serving as exclusive seller's agents, we closed the largest real estate transaction in North Fork history:
Trumans Beach | East Marion | 100+ acres | $23.5 million

This landmark sale stands as a defining moment in the North Fork real estate market and a clear demonstration of our ability to handle complex, high-value transactions with discretion, precision, and vision.

Luxury Real Estate with Environmental Stewardship

The Truman's Beach transaction was about more than achieving a record price. The property's extraordinary waterfront setting, environmental sensitivity, and historic significance required thoughtful representation and responsible stewardship.

We approached the sale with a clear understanding of:
● Coastal and environmental considerations
● Zoning and long-term land use implications
● The importance of protecting irreplaceable North Fork landscapes

By strategically positioning the property and engaging the right buyer pool, we helped ensure the land's integrity and legacy were respected proving that exceptional results and environmental responsibility are not mutually exclusive.

This philosophy guides all of our work, particularly with waterfront estates, farmland, and conservation-sensitive properties across the North Fork.

North Fork Waterfront, Farm & Estate Specialists

Our combined experience spans the full range of North Fork real estate, including:
● Waterfront homes and bay-front estates
● Farm, vineyard, and agricultural properties and extensive development rights experience.
● First Time Home Buyer guidance and advice.
● Luxury residences and historic homes
● Investment and legacy holdings

Joan Bischoff van Heemskerck and Nicholas Planamento bring decades of hands-on experience and deep community ties on the North Fork, with a reputation built on results, trust, and unmatched local insight. Together, we offer buyers and sellers a level of market understanding that simply cannot be replicated from outside the region.

Strategic Guidance in Every Market

Real estate transactions are rarely simple especially in today?s market. We provide clear, informed, and steady guidance at every stage, including pricing strategy, negotiations, inspections, contract issues, and closing.

Our approach is:

● Strategic, not transactional

● Customized, not formulaic

● Calm, responsive, and transparent

Whether you are selling a cherished property, purchasing your primary residence, or making a long-term investment, our role is to protect your interests and position you for success.

Why Clients Choose Us

● Proven, record-setting results

● Deep North Fork and East Marion expertise

● Sophisticated marketing and global reach through William Raveis

● Integrity-driven representation

● Long-term relationships built on trust

Our clients are not transactions. They are relationships and we treat them accordingly.

We are proud to have helped many kids who grew up locally homes they thought they could never afford and begin the American Dream.

North Fork Real Estate Representation That Delivers

From historic, record-setting sales to highly personal home purchases, we deliver results while honoring the land, the community, and the trust placed in us.

If you are considering buying or selling on the North Fork and want representation that combines market leadership, discretion, and responsible stewardship, we would be honored to work with you.

Exceptional people and properties deserve exceptional care.

Professional Specialty

Joan Bischoff van Heemskerck, Esq. specializes in high-value real estate transactions, particularly in second-home, resort, and international property markets. His unique combination of legal expertise and strategic global marketing allows him to guide clients through complex deals with confidence. Joan offers clients a tailored approach, whether they're buying or selling luxury homes, second properties, or navigating international markets. The merger with William Raveis Real Estate provides access to an expanded national market, further enhancing Joan's ability to serve both local and international clients. William Raveis Real Estate Merger (January 2025) Since January 2025, William Raveis Real Estate and Town & Country Real Estate have merged, bringing together the strengths of both firms. This merger enhances Joan's ability to provide his clients with expanded services and increased market reach, including: Wide Network and Market Reach: Access to an extensive network of agents and offices across the Northeast and East Coast, offering a broader local and national market presence. Comprehensive Services: In addition to residential real estate services, William Raveis provides mortgage, insurance, and title services, ensuring a one-stop-shop experience for clients. Technology and Tools: State-of-the-art tools for property searches, marketing, and client management, ensuring an efficient and effective home buying and selling experience. Personalized Approach: Known for its client-centric model, William Raveis offers customized solutions for each buyer and seller. Luxury Property Focus: William Raveis has a strong presence in the luxury market, offering specialized knowledge and access to exclusive listings. Relocation Services: William Raveis provides relocation support, including area tours, school information, and neighborhood insights. Strong Reputation and Experience: With over 40 years of industry experience, William Raveis is recognized for professionalism, reliability, and expertise in the real estate market. The merger equips Joan with even more resources to deliver unparalleled service and global reach to his clients.

Expert in high-value and complex real estate transactions

Specializes in second-home, Commercial, and international property markets

Skilled in guiding negotiations, due diligence, and cross-border deals

Experience

Joan currently serves as Executive Compliance Counselor and on the Board of Directors at William Raveis Real Estate of the East End, a top-tier real estate company with an expansive network across the East Coast and Northeast U.S.. Past Experience: Founder of Buyers Connections Realty, a boutique firm specializing in transparency and client-centered service. Led Buyers Connections Realty in a successful merger with Town & Country Real Estate, which later transitioned into the merger with William Raveis Real Estate in January 2025. Previously held the role of Executive Compliance Counselor and strategic advisor at Town & Country Real Estate, helping guide agents and clients through the complexities of the local market.

Founder of Buyers Connections Realty, a boutique firm specializing in transparency and client-centered service.

Led Buyers Connections Realty in a successful merger with Town & Country Real Estate, which later transitioned into the merger with William Raveis Real Estate in January 2025.

Previously held the role of Executive Compliance Counselor and strategic advisor at Town & Country Real Estate, helping guide agents and clients through the complexities of the local market.

Achievements

Realtor of the Year (2017), awarded by industry peers Founder of Buyers Connections Realty Spearheaded the merger with William Raveis Real Estate (January 2025) Past President, North Fork Promotion Council Immediate Past President, HANFRA (Hamptons and North Fork Realtors Association)

Realtor of the Year (2017), awarded by industry peers

Founder of Buyers Connections Realty

Past President, North Fork Promotion Council

Immediate Past President, HANFRA (Hamptons and North Fork Realtors Association)

Areas Covered

Joan serves the following markets: North Fork of Long Island The Hamptons and Shelter Island East End of Long Island International and second-home property markets The merger with William Raveis Real Estate provides access to an expanded national market, further enhancing Joan?s ability to serve both local and international clients.

North Fork of Long Island

The Hamptons

International and second-home property markets

Niche Marketing

With an MBA in International Marketing and extensive experience in global property transactions, Joan creates customized marketing strategies tailored to luxury properties, second-home buyers, and international investors. His approach leverages cutting-edge technology, provided through the William Raveis platform, ensuring maximum exposure for properties.

MBA in International Marketing

experience in global property transactions

Bilingual Talents

Joan is fluent in: English Dutch French Spanish German And moderately fluent with some practice in Italian This multilingual fluency enables Joan to serve a diverse clientele and bridge cultural and language barriers, ensuring smooth, effective real estate transactions across borders.

English language

Dutch language

Spanish Language

German language

French l;anguage

Community Involvement

Joan is a passionate advocate for his community and has held leadership roles such as: President, Rites of Spring Music Festival Past President, North Fork Promotion Council Immediate Past President, HANFRA (Hamptons and North Fork Realtors Association) Joan also supports local businesses and community initiatives, further solidifying his commitment to the East End.

Past President, North Fork Promotion Council

Past President, HANFRA (Hamptons and North Fork Realtors Association)

Professional Association

Joan is deeply involved in the New York State Association of Realtors (NYSAR), where he contributes to several key committees, including: Communications, Marketing & Technology Forum Legislative Policy Forum Professional Standards Committee Multiple Listing Issues & Policies Committee Second-home, Resort & Global Markets Committee Additionally, Joan is a licensed Real Estate Instructor, helping to educate future professionals in the industry. He is also a member of Real Estate Sections of the New York State Bar Association and Suffolk County Bar Association

Communications, Marketing & Technology Forum

Legislative Policy Forum

Multiple Listing Issues & Policies Committee

Second-home, Resort & Global Markets Committee

Real Estate Sections of the New York State Bar Association and Suffolk County Bar Association

Education

Juris Doctorate, magna cum laude, Touro Law School Master of Business Administration (MBA), International Marketing Joan?s educational background combines legal expertise with global business strategy, making him uniquely equipped to handle complex real estate transactions.

Juris Doctorate, magna cum laude, Touro Law School

Master of Business Administration (MBA), International Marketing

Personal

Joan is originally , a village near The Hague, in the Netherlands. He settled in Fairfield County, CT in 1985 and has called the East End of Long Island home since 1999. With his international background and deep ties to the local community, Joan combines a global perspective with a strong commitment to his East End clients.

from Wassenaar, the Netherlands

Settled in Fairfield County, CT, in 1985

calls the East End of Long Island home since 1999

Additional Languages

Spanish

Dutch

French

Italian

German

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