Terry O'Brien - Monument Sotheby's International Realty Categories Real Estate: Residential and Commercial 674 Unionville Road Suite 104 Kennett Square PA 19348 (646) 620-4900 About Us REALTOR - Global Real Estate Advisor Rep/Contact Info Terry O'Brien × Terry O'Brien REALTOR Phone: (646) 620-4900 Send an Email Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×