Keri O'Sullivan What Clients Say...

"Keri O’Sullivan did a fantastic job preparing my parents’ home for sale. She went above and beyond in meeting several contractors for repair work. Her advice was excellent at every phase of a very complicated sale. When the house went on the market, we had multiple offers within a few days, and she was able to sell the house above asking price. We highly recommend Keri to anyone looking for the best REALTOR in the DC area!!"

Theo Wu

"My husband and I received Keri's contact information from a friend who had worked with Keri previously. From our first call, we felt instantly comfortable with Keri and confident that her expertise would lend itself to a positive house hunting experience. As first time homebuyers, we had some early apprehensions about the process (and a never ending slew of questions!). Our fears quickly dissipated, however, in working with Keri to find a home. Keri was beyond gracious with her time in sharing her knowledge, availability, and real estate savvy. We really felt that Keri understood what we were looking for and was just as committed to finding the perfect home for us as we were.

As official homeowners today, my husband and I often reflect on how smooth Keri made what would have otherwise been a rocky process for us. We just cannot imagine having had the success we did in purchasing our dream home if it had not been for Keri. Her professionalism, connectivity, and understanding of the area are just unmatched. We are endlessly grateful to Keri for her support and guidance in helping us to open this wonderful new chapter in our lives."


"Keri is an amazing person to work with! She has been with us each step of the way during our recent purchase near Old Town. Very honest and trustworthy and is on your side of the transaction to make sure you get the best outcome possible. I have been very impressed at the hours she put in even late at night to get a deal done for us. Even after closing, she continues to help us with a last minute issue that came up. She is empathetic and understands our needs. She will be our person to refer people to and when we leave the area, to help us to do that!"

Brenda & Rick

"Simply put, Keri is the gold standard of real estate professionals. She is knowledgeable, organized, and is always very responsive. One of Keri's most notable attributes is her attention to detail as she does all the little things right throughout the process which ultimately leads to the best possible outcome.

In our particular case, Keri handled all aspects of selling our home in Falls Church and we had multiple offers after only one open large part due to her combined preparation, research, and marketing efforts prior to the listing. My wife and I couldn't have been happier with the experience and would absolutely recommend Keri O'Sullivan to others seeking a real estate won't be disappointed!"

Mike & Lisa

"Keri's professionalism and real estate expertise made selling our home a very positive experience. She explained everything very well and was extremely responsive to all of our questions and needs during the selling process. Keri is wonderful and we will be referring all of our friends and family to her."

Bob & Donna

"Keri was a dream to work with!!! My husband and I immediately felt comfortable and at ease talking to and working with her, but it was also obvious she was extremely knowledgable and professional. It can be hard to find a REALTOR that is great at both; we met with a few others that couldn't compare.

She was very prompt with her communication and flexible with her schedule. We needed to see a house within a day after it went on the market and the only time we could meet was in the evening. Keri made it happen. (This is the house we bought.) She also made a special visit to the house with me before we closed so that our painter could do a walkthrough and start ASAP.

Keri was a huge asset when we went to look at houses. We had been to several on our own, but she would point out things to look out for and questions to ask. She made the daunting home-buying process seem easy and enjoyable even though there was lots going on and deadlines to meet.

When it came time to place our offer, she gave us several suggestions for how to make it strong and specifically called out something we would not have put much emphasis on otherwise. That ended up being the thing that the sellers highlighted when explaining why they chose us. We found out that two other offers had come in higher than ours but I credit Keri with crafting ours in a way that made it competitive and in the end, a winner.

I could go on and on but all I have to say is Keri O'Sullivan is the best! We found our home pretty quickly and the only downside was not being able to work with her for longer.

Stephen & Christina

"I have worked with Keri for more than a decade, and she's helped me buy three homes and sell one. She continues to impress me with her in-depth knowledge of the local market (even by neighborhood) and her responsiveness (which is especially important in this competitive DC market). Throughout the buying process, she was excellent in guiding us through the negotiation process, scheduling home inspections and closing on time. With Keri's help, we were able to sell our DC row home in two days. I would (and will) recommend Keri O'Sullivan to anyone without reservations!"


"As a first time home-buyer, Keri O'Sullivan was invaluable. She's so knowledgeable of Arlington's neighborhoods, she found my home in a neighborhood I didn't know about myself, but was absolutely what I was looking for.

She did a great job of listening to my preferences and finding appropriate units, and was very helpful during viewings by pointing out considerations based on her years of experience that I wouldn't have even thought about.

She was very responsive, and was very helpful during the negotiation process. She was able to recommend lenders, settlement companies, even a handyman so I could get a second opinion about something in my home inspection."


"Keri guided my wife and I through the process of listing our condo and finding our next home. She was extremely responsive throughout the entire process and helped guide us through each step of the process from preparing our previous home for the market, working through that sales process, finding our new home and helping to push us through the closing process.

She was very flexible in meeting us for house visits and helped us keep an eye out for potential pros and cons of every space that we viewed."

Harry & Mary-Anne

"Keri O'Sullivan did a wonderful job helping us sell our home. It was under contract within a week of listing and we had a very easy and pleasant experience. I highly recommend her!"


"To date, I have worked with Keri O'Sullivan on selling several properties, and I have recommended her to my closest friends, and my family. Keri’s keen attention to detail, thorough understanding of the DC metropolitan market and customer service oriented attitude, make her an ideal choice for all of your real estate needs."

Mike M.

"I want to thank you so much for all of your help and patience. This process was very intimidating for me as a new homebuyer, and you were so supportive. I couldn’t have gone through it without someone I could trust."


"Keri’s method was simple, but effective. She interviewed us to identify our wants and needs, and then she was with us every step of the way to sell our house in Virginia and buy the property we wanted in DC. She worked tirelessly for us. Bottom line, Keri O'Sullivan is our REALTOR of choice in the Washington area!"

Imran & Amy

"Keri O'Sullivan is an absolute pleasure to work with. With her extensive knowledge of the real estate market, we quickly became educated buyers. Her great attitude, attention and focus on customer service, made our buying experience, in this competitive market, not only successful, but enjoyable."

Sam & Jamie

"You are a true professional, and are heads and shoulders ahead of the pack. Your attention to detail and care for the customer is supurb, and your tireless commitment is not only noticed but majorly appreciated. I wish we could clone you and have you in San Diego, as there are certainly no Keri's out here."


"Our experience with Keri was fantastic! She was incredibly patient and her knowledge of the real estate market was a huge asset in our finding a place that we love in our price range. We wouldn’t hesitate to use Keri O'Sullivan again, and we would recommend her to anyone looking to buy their perfect home!"

David & Callie

"Keri O'Sullivan is an amazing real estate agent! She helped me find the perfect home in Arlington in the exact neighborhood I wanted. She is extremely professional, knowledgeable (especially about the Arlington market), organized, and responsive. She has logged ALOT of hours with me and truly went above and beyond. As a first time home buyer, she was invaluable in explaining contracts and going over details with me that I was unfamiliar with. I highly recommend Keri and will be referring all of my friends and family to her."


"Keri O'Sullivan was spectacular. She was helpful with every aspect of our sale and move. She was quick to respond to any questions and - maybe most importantly - she was patient as we prepared to leave our home of 30 years."

John & Amanda

"Keri O'Sullivan is an outstanding real estate agent. She helped us to both sell our house and buy a new house and was there to expertly guide us through each step. She was transparent, responsive, provided thoughtful and timely advice and guidance, clearly explained each step, and made the process as painless as possible. She was also just a pleasure to work with throughout the entire process. Keri is worth her weight in gold and we will be recommending her to our friends, family, and colleagues when they need to buy or sell a house."

Dan & Jessica

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