About The Riley Oakley Group
Sales Associates - Osterville Office
812 Main Street, Osterville, MA 02655
Email: TheRileyOakleyGroup@raveis.com
| Cell: 508.367.3320 | Office: 508.428.3320
Website: https://therileyoakleygroup.raveis.com
Official Real Estate
Company of the
Boston Red Sox
Agent Credentials
Personal
Colleen and Sabrina Riley are a mother-and-daughter real estate team with William Raveis Real Estate, helping buyers and sellers across Cape Cod move forward with confidence. With over 30 years of combined experience, their approach is hands-on, thoughtful, and grounded in genuine local knowledge. Born and raised on Cape Cod, both Colleen and Sabrina are graduates of Barnstable High School and come from a family with deep roots in the community. The Barnstable High School football field is named after Colleen's grandfather and Sabrina's great-grandfather, Leo Shields, reflecting a legacy closely tied to the area they continue to call home. Their experience is matched by a strong track record of industry recognition and results. Colleen has been named one of America's Best by RealTrends in 2021, 2023, 2024, and 2025, and was most recently recognized among the top five percent of all Realtors on Cape Cod. Sabrina was named Rookie of the Year by Boston Magazine in 2024 and has quickly established herself as a top-performing agent, ranking within the top twenty percent of Realtors on Cape Cod. They know the Cape's villages, neighborhoods, and lifestyle firsthand, allowing them to guide clients toward smart, informed decisions whether buying, selling, or relocating. Sabrina's background in construction adds a meaningful advantage for clients. With hands-on experience and an eye for design, she helps buyers recognize a home's potential and helps sellers position their property to stand out-especially during inspections, negotiations, and renovation planning. Colleen and Sabrina chose William Raveis Real Estate for its integrity, innovation, and client-first philosophy. The firm's concierge services, luxury platform, and cutting-edge marketing tools allow them to deliver a seamless, well-supported experience from start to finish.