

About Diane
As a 25+ year resident of Severna Park, Diane offers unmatched local knowledge, giving her clients a distinct advantage when navigating today’s competitive real estate market. She understands not just home values...but the individual neighborhoods, lifestyle, and nuances that influence buying and selling decisions.
Diane is highly experienced in waterfront and water-access properties in Annapolis and the surrounding Chesapeake Bay communities, where expertise truly matters. She educates clients on the critical details that impact value and usability, including water depth, dock permits, shoreline conditions, elevation, views, and access. Diane often reminds clients that not all waterfront properties are created equal, and her guidance helps buyers avoid costly mistakes while ensuring sellers position their homes to stand out and command top value.
Her approach is strategic and results-driven. Diane leverages data-backed pricing strategies, targeted digital marketing, and strong negotiation skills to help sellers maximize their home’s value and attract qualified buyers. For buyers, she provides clarity, responsiveness, and insight, especially in competitive situations where timing and expertise are crucial.
Known for her attention to detail, communication, and professionalism, Diane has earned a reputation as a trusted real estate resource and top performer within the Long & Foster Severna Park office.
Whether you’re buying, selling, upgrading, downsizing, or searching for the perfect waterfront home in Annapolis or Severna Park, Diane delivers a seamless, informed, and highly personalized real estate experience.
Transaction History
- 1 Year
- 2 Year
- 5 Year
Neighborhoods Diane is Experienced In
Diane's Listings and Deals
Diane's Active Listings
Recently Sold
Awards and Designations
- Highest Total Sales Volume
- CRS - Certified Residential Specialist
- SFR - Short Sale & Foreclosure Resource
- SRES - SRES®, Seniors Real Estate Specialist
Other Experience
Diane's Reviews
9/29/22Mary DeLia
Diane is like a force of nature who will work tirelessly for her clients. Her knowledge and experience gave me total confidence in her expertise in selling my home, so I was able to focus on my move. I never doubted her commitment to protecting our interests, but she also always made sure we were doing right by the buyer. She's warm and friendly and a genuinely decent person. I couldn't have been more pleased.
9/29/22Mike Swangler
Absolute pleasure to work with. She doesn’t tell you what you want to hear to just sell you a house, she tells you what you need to know to make a great decision. So many little things that she catches that you don’t even think of. Could not have had a better experience, and my family is now in a house we love all because of her!
6/25/22Gloria Succi
Diane Gavin made our experience more than I could have asked for. I highly recommend her. She was there for me and my family every step of the way. We honestly couldn’t have made it through this crazy process without her. Dianne continuously goes above and beyond. She is professional and extremely responsive to a seller/buyer’s needs. If you're looking for a realtor, she’s the one!
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