Bill Cullin is the realtors "Realtor". He is the most professional, knowledgeable, capable and caring realtor I have ever worked with in my 40 years in the real estate business. I especially appreciated his efforts in keeping me informed as to the activity and feed back on my Henlopen Condominium. Bill Cullen is the best in the business and an invaluable asset to Long and Foster. I strongly recommend him. He gets a 5+star rating.