

About Bill
Bill Cullin has been a successful real estate professional since 2006, consistently ranking among the top Realtors in Delaware due to his award-winning, multimillion-dollar sales. He understands that buying or selling a home is a significant life decision and strives to make the process as smooth as possible for his clients. Bill is dedicated to selling homes quickly and at top dollar, or helping clients find the perfect property that meets their needs, budget, and expectations. His personal approach and focus on client satisfaction ensure a positive experience throughout the entire process.
Specializing in second homes, vacation properties, new construction, relocation, retirement, waterfront, and investment properties, Bill has built a reputation for excellence over the years. A significant portion of his business comes from repeat clients and referrals, reflecting the strong, long-lasting relationships he fosters. With 19 years of experience, Bill is known for his commitment to his clients’ goals and his ability to handle every detail, allowing them to focus on the bigger picture. For all real estate needs, Bill is a trusted advocate and expert.
Call Bill Cullin for all your real estate needs today!
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ACCREDITATIONS & AWARDS:
*2025-18th Consecutive Year: Top Producing Agent at Long & Foster’s Rehoboth Beach Office
*2025-5th Consecutive Year: Overall Top Producing Individual Agent in Delaware at Long & Foster
*2025-4th Consecutive Year: Member of the Long & Foster’s Gold Team Master Club Level, with sales volume $29 million
*2023-National Assn. of Realtors Resort and Second Home Property Specialist Designation Earned
*2025-12th Consecutive Year: Five Star Professional Award-Winning Sales Agent
*2025- Named to the RealTrends Verified list of America’s Top Agents
*2025-14th Consecutive Year: “Zillow.com 5 Star Professional”, with “Best of Zillow” designation awarded in 2024
*Top Selling Realtor at The Henlopen Condominium, with 47 Transactions, Exceeding Sales of any other Agent or Team in the State of Delaware
Transaction History
- 1 Year
- 2 Year
- 5 Year
Neighborhoods Bill is Experienced In
Bill's Listings and Deals
Bill's Active Listings
Awards and Designations
- Chairman's Club
- Five Star Professional Award 11th Consecutive Year
- Highest Total Sales Volume
- Long & Foster Master's Club Level 20-35 Million in Sales Volume
- Resort and Second-Home Property Specialist (RSPS)
- Top Agent at the Rehoboth Beach Sales Office 17 Consecutive Years
- Top Producing Individual Agent in Delaware at Long and Foster 2019 - 2023
- Top REALTOR®
- NAR - National Association of Realtors
- RSPS - Resort & Second-Home Property Specialist
Other Experience
Bill's Reviews
3/30/23LoneStar Quiltworks
Bill helped us purchase a home in Lewes, DE after completing retirement from our Lone Star Quiltworks business. He was truly amazing to work with and probably the best realtor we have ever dealt with for a home purchase. His follow through was amazing.
8/19/22Patti F
I cannot say enough about how amazing Bill Cullin is! He is experienced, knowledgeable, friendly, and competent. He spent about 2 years with us as we searched for our perfect beach home away from home. We finally found it!!
In between working with Bill, we stumbled across a different agent who was pushy and did not listen to our needs. We worked with that agent 1 time only. But we went back to Bill again and again. No matter how much time elapsed, Bill was always happy to continue showing us homes and never pressured us to decide. His expertise in home building, decor, repairs, comps, and the Rehoboth area is outstanding. We live out of state, and he was willing to preview homes for us first. And we trusted his assessment 100%. In fact, the home we ended up purchasing, we did not see until home inspection! We were not disappointed, and our home is absolutely perfect for us. Bill's patience with us was remarkable! If we ever need to sell our beach home, Bill Cullin will be our agent.
2/9/22jimmy nuetron
Bill was unbelievably helpful, knowledgeable and professional. He went above and beyond for my family. Cannot thank him enough💕💕
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