

John J Dean Jr
Licensed Real Estate Agent
Avg. sale price
Sold (as lead agent)
Properties for sale
Buyer of 39 Joseph Smith Lane, Boxford
It was an absolute pleasure to work with John in both the purchase of our new house and sale of our old house. John is extremely knowledgeable about the entire process from start to finish and always has his finger on the pulse of the market. He routinely went out of his way to help us understand and navigate the complexities of the entire process. His communication was prompt, accurate, and honest. He went the extra mile to represent us professionally through what would have otherwise been a very difficult purchase. John was able to negotiate great deals for us on both our purchase and sale agreements amid a turbulent market. I would highly recommend anyone entering the real estate market to work with John. We couldn’t have been more thrilled!
Seller of 6/326 Broadway, Somerville
John thank you for helping me secure a great condo in Somerville at a discounted price eleven years ago. I am glad we stay connected and you could help with the sale this summer. Thank you for keeping everyone on task working together to get the deal done --both in the buying process and most recently with the sale. I respect your expertise.
Buyer of 96 Glen Street, Somerville
We met John after arranging a local tour through Zillow. He immediately impressed us with his expansive knowledge about home ownership, both in the legal/purchasing domain and the home ownership/improvement domain. He gave us a no-bullcrap tour, was forthright and honest about the limitations and drawbacks of the property, and his honest opinion on what a good offer would look like. This stood in stark contrast from the other Agents we had been working with, who were mostly interested in getting us into any condo or house, no matter the quality or location. Over the next several months of tours, John was responsive, available, and deeply helpful through every stage of touring, evaluating, and putting an offer in of the many homes and condos we looked at. The search was long and frustrating, but John made it much easier. His experience helped us get tours in the area multiple times, he frequently had the local knowledge to tell us about pros and cons of each property even outside of the structure itself, and his focus was always on making sure the house was a good fit for us, frequently encouraging us to wait for a better option instead of cashing in his payment. The house we ended up getting wouldn't have been possible if John wasn't available for a same-day tour, where he negotiated our offer with the listing agent quickly enough to skip their open house, saving us a potential lengthy bid war. Even after the offer was accepted, John was available to talk and made it clear that he was a resource for us to go to for anything we needed. He's come through on that front, connecting us with great contractors and even offering up some plants to spruce up the garden. John was a class act throughout, was always fun and friendly, and (as I've highlighted) was an extremely trustworthy person in a field which feels like it's trying to take advantage of you. I don't think I could imagine a better agent than him, or a happier ending to our home search.
County Top 5
Middlesex County2026City Winner
Medford2026

Kelly Catallo
Owner | Broker | REALTOR®
Avg. sale price
Sold (as lead agent)
Properties for sale
Seller of 48 Metcalf Street, Medford
Kelly has strong market knowledge. She is confident, professional and compassionate. She quickly got us a price over listed value. Kelly is helping us to buy our new home and the same qualities apply. She is always conscious of the best value for a home. We so appreciate her abilities.
Seller of 12 Wellesley Street, Medford
After a long and sometimes challenging real estate journey, I cannot say enough positive things about Kelly Catallo from Cosmopolitan Realty. From start to finish, Kelly was dedicated, professional, and worked extremely hard to ensure the transaction was completed within the required timeframe. She went above and beyond, working closely with the state and attorneys to keep the process moving forward and to resolve every obstacle that arose. Her persistence, attention to detail, and commitment truly made the difference in successfully closing this deal. I am incredibly grateful to Kelly and her entire team for their outstanding effort and support. Their expertise and dedication made what could have been a stressful experience a smooth and successful one. I highly recommend Kelly Catallo and Cosmopolitan Realty to anyone looking for a reliable and hardworking real estate professional.
Mary Kelly
Avg. sale price
Sold (as lead agent)
Properties for sale
Seller of 2/124 Harvard Street, Medford
I cannot recommend Mary highly enough. When my property didn’t sell immediately, many agents might have lost interest or simply suggested dropping the price. Not Mary. She got creative with her marketing approach, explored new strategies, and brought fresh ideas to the table at every turn. Throughout the entire process, she gave 100% effort—her dedication and energy never wavered, even when the market was challenging. When we finally got to closing and things became a bit complicated, Mary handled everything with professionalism and persistence, making sure we got through it successfully. She’s the kind of professional who truly goes above and beyond for her clients, and I’m grateful to have had her expertise on my side. If you’re looking for an agent who will fight for you from day one until closing, Mary’s your person.


Molly Potts
Avg. sale price
Sold (as lead agent)
Properties for sale
Seller of 201 Spring Street, Hopkinton
Molly was a wonderful real estate agent for the sale of my home! She was extremely organized throughout the whole process; taking initiative and thinking ahead with all that needed to be done. She was responsive to issues that came up and super supportive of any questions or concerns that I had. Her calm and professional demeanor made the stressful process of selling a house much more manageable. I highly recommend Molly!