Maria Romero Vagnini, Realtor®

The Standard for Luxury Real Estate in Southborough & MetroWest

Maria Romero Vagnini is a premier real estate advisor with Mathieu Newton Sotheby’s International Realty, specializing in high-end estates, equestrian properties, and luxury new construction. Consistently recognized by RealTrends as one of America’s Best Real Estate Professionals, ranking in the top 1.5% of agents nationwide, Maria has defined herself as the definitive authority for the Southborough (01772) luxury market.

While many agents focus on transaction volume, Maria focuses on exceptional results. Her data-driven approach and bespoke marketing strategies consistently achieve the highest price-per-square-foot in the region. In 2025 and early 2026, Maria’s market dominance was clear: she represented three of the top four highest-priced sales in Southborough, setting new benchmarks for the town’s residential value.

A Record of New Construction Excellence Maria has redefined the standard for luxury builds in Southborough, representing the record-breaking sales of signature estates at 6, 8, and 10 Lorenzo Drive. Her deep understanding of the construction process and land development makes her an invaluable partner for both builders and discerning buyers seeking bespoke homes.

Specialization in Historic and Waterfront Estates Beyond new builds, Maria is an expert in the preservation and marketing of significant historic properties. She secured the 2025 record for the highest-priced antique home sale in Southborough at 157 Parkerville Road. Her regional reach also includes setting the all-time record for the highest residential sale in Sturbridge history for a premier waterfront estate on Big Alum Pond.

Global Reach and Tech-Forward Strategy Maria’s reputation is built on a foundation of "market-savvy" expertise. By leveraging the prestigious Sotheby’s International Realty network, she provides local listings with unparalleled global exposure in The Wall Street Journal, Mansion Global, and The New York Times. She embraces cutting-edge technology and advanced data analytics to provide her clients with a sophisticated edge in every negotiation.

Your Local Expert with a National Reputation From Southborough and Westborough to the surrounding communities of Hopkinton, Northborough, and Ashland, Maria Romero Vagnini is the trusted choice for sellers who demand record-breaking results and buyers seeking an elite lifestyle.

Along with her busy real estate career, she and her husband are raising identical twins and have a crazy Wheaten terrier named Roxy. She is an art lover, a foodie, and a design enthusiast.

Languages: English
Designations: Accredited Buyer Representative (ABR), Seller Representative Specialist (SRS)

617.640.1400

[email protected]

testimonials

Client Experiences

Clients consistently praise Maria Romero Vagnini for her unmatched market knowledge, exceptional communication, and unwavering dedication to delivering a smooth and successful real estate experience. Known for her deep expertise in the MetroWest area, her extensive professional network, and her ability to anticipate and support every client need, Maria goes above and beyond—whether guiding first-time buyers, coordinating complex transitions, or expertly marketing a home for top results. The testimonials below reflect the trust, gratitude, and outstanding experiences of those who have relied on her professionalism, warmth, and tireless commitment.

Kriti M.

Maria is wonderful to work with. She has very good knowledge of the real estate market and the neighborhood (especially the Metro west area) and various towns. She is super responsive, and is always available to help. Her list of professional contacts was super helpful to us as first time home buyers: home inspectors, environmental inspectors, radon testers to handyman, cleaners....everything!! She always has your interests in mind, works with you to find the home that you want, gives good professional advice, works with you in negotiating offer, and goes that extra mile in making sure everything is to your liking.

Jess Cutone

Having Maria Vagnini as our Realtor was easily one of the best decisions. Our search was centered on a specific neighborhood in a specific town. I was not very optimistic that we would be able to find a home. Maria proved me wrong! She was able to find us our dream home and we could not be more thrilled. Maria also sold the home we were living in in record time! She connected us with reputable workers such as plumbers, electricians, movers, and HVAC specialists.

Jane

Maria Vagnini is the BEST of the Best! Maria was with us for every step in process of buying our new home and selling our old home. She was available at all hours and answered the smallest and biggest questions right away. Maria has a vast amount of knowledge and experience in the real estate field. Our house sold within a month (in the dead of summer) because of Maria's excellent marketing and people skills. We will recommend her to everyone we know.

Melania Dayley

Maria Vagnini is, hands down, the best Realtor in the area. She is knowledgeable, professional and well connected. She looked after our interests during the whole process of purchasing a home. Thank you for your patience and hard work!

We had the best experience with Maria! We would highly recommend her to our friends and family and would use her again in the future.Maria was so patient with us from day one. We arrived at our showing (which is now our new home!) and Maria took the time to show us throughout the house, point out upgrades and disclosures, and answer all of our questions. THEN she was kind enough to stay late and also show our parents the home when we asked them to come take a look! Maria was helpful and knowledgeable without being pushy. As we went forward with the process - which can be overwhelming - Maria was present and available with anything we needed - from help with our mortgage, to home inspections, to questions we had in regards to the septic. She really went above and beyond and made us feel as though we were priority clients. When we were finally able to close - which was organized quickly for us by Maria - we were able to look back on the whole process with a real feeling of relief. We had a real estate professional in our corner from day one until the very end that had our best interests at heart, that took our concerns seriously, that made us feel important. We live in the house of our dreams and Maria not only helped get that for us, but she made it a quick, painless process.We were so impressed with Maria, that we asked her to represent our old home when we decided to sell it. Once again, she made us priority and treated our old home as though it was her only focus. She made great suggestions on how to decorate, how to price and how to position our home in order to sell it in the time frame and at the price we were hoping for. She set up multiple open houses, and made a beautiful website for our home. Our place sold within two weeks at a price that we were ecstatic over!I can't say enough nice things about Maria. She really made both buying and selling an easy process on us and we were left with a delightful experience to look back on and a beautiful home to look forward to! I will continue to work with and refer Maria for years to come!

I cannot say enough positive things about Maria. I'll start by saying she is honest which when buying and selling a home, is paramount. She was extremely flexible with our ever changing schedule and even more so with our ever changing home buying situation. Her knowledge of the market, network and creative marketing all lead to a multiple offer situation on our home sale. Then, her superior relationship building and negotiating lead to the seller of our new home agreeing to our home sale contingency...in a seller's market (I'm not in real estate and even I know, this is huge!). From looking at homes all the way through closing, Maria offered unparalleled guidance. Her job with us still hasn't ended as we continue to contact her months later to tap into her extensive list of contractors!Maria is fabulous and truly the best partner you could have when buying, selling or both!

Awesome is the only way I can express my opinion of Maria Vagnini and my experience with Sotheby's. Maria was prompt, professional and worked in my best interest always. Maria left with me with nothing at all to worry about. I could not have asked for a better experience! ~danloch17

Maria was an absolute pleasure to work with , buying and selling during a pandemic was not ideal timing but Maria made sure our family was safe every step of the way. We were met with tight timelines and with her strong marketing, know how and network our transaction was quick and smooth without having to compromise on price or safety. Thanks Maria! ~mbailey5685

Thank you Maria and Dan, for making the sale of my property such a pleasant experience. I so appreciated your professionalism as well as your wonderful communication and marketing. You went above and beyond representing and selling my home. ~Jane B. ,Worcester, MA

Maria Romero Vagnini, Realtor®

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Client Experiences