Business Philosophy

    When something as important as selling or buying a home is at stake, every detail matters.

    Selling or Buying a home can be stressful. With over 30 years of sales and negotiation experience, I assist sellers and buyers with the highest level of service to make their transactions smooth and stress free! When serving my clients, I oversee every aspect of their Real Estate Sale or Purchase in a professional, organized, and detail oriented manner. I am always available to answer questions for my clients, and assist and advise them throughout their Real Estate transaction.

    I possess a strong aptitude for communication - a vital skill used not only when interacting with YOU, my client, but also when working with attorneys and other professionals involved in real estate transactions. A long term resident of Sharon, and a REALTOR; since 2006, I have worked in Sharon and the surrounding communities, as well as the Greater Boston Area. Experienced in the Re-Sale Market selling both Single Family Homes and Condominiums, I have also sold New Construction, worked with Buyers and Developers, and assisted buyers through every phase of the building process.

    I enjoy working with people and it's my pleasure to assist my clients at this very important time in their lives.


    PROUDLY DONATING a portion of every commission earned to a charity of my client's choice since 2006.


    6 Time Worldwide Coldwell Banker President's Club Award Winner! 
    Multi-Million Dollar Producer

    Licensed Real Estate Agent in Massachusetts

    Boston University, Magna Cum Laude, Bachelor of Science

    Milton High School

    Certifications And Designations


    Seller Representative Specialist (SRS)

    Accredited Buyer Representative (ABR)

    Member-Greater Boston Real Estate Board (GBREB)

    Member-National Association of Realtors (NAR)

    Member-Massachusetts Association of Realtors (MAR)

    Member Multiple Listing Service (MLSPIN)

    Seller Reviews

    "You really can "Count on Karen"! Karen helped us Sell our Home as well as purchase our new Home. Communication is one of her strong points, and to us this makes all the difference in dealing with someone who is a true professional!! We recommend using Karen for your real estate needs, both on the purchase and on the sales end!!"Marlene Gary

    "I have worked with many real estate agents and Karen was the best by far. She is extremely hard working and very knowledgeable. She gave suggestions on how to make the house sell faster and she held 1 open house and we received an offer that day for our asking price. She stayed involved throughout the whole process."~ Randy

    "When it came time to put our house on the market, Karen was able to give us cost effective strategies and sold our home in under a month at the price we were looking for. We highly recommend Karen and if we ever move again, she would be the only agent we would consider using." ~ Bob and Gail

    "Karen's work was outstanding in selling our house. She gave us sound advice on pricing, diligently followed up every lead, kept us up to date, and was on top of every detail. We learned a lot during the sale of our house -- most importantly that the job of selling a house is much harder than it looks and that good real estate agents are worth every penny (if you can find one as good as Karen)." ~ Lionel Anne

    My Client Testimonials

    I have worked with many real estate agents and Karen was the best by far. She is extremely hard working and very knowledgeable. She gave suggestions on how to make the house sell faster and she held 1 open house and we received an offer that day for our asking price. She stayed involved throughout the whole process.
    Karen's work was outstanding in selling our house. She gave us sound advice on pricing, diligently followed up every lead, kept us up to date, and was on top of every detail. We learned a lot during the sale of our house -- most importantly that the job of selling a house is much harder than it looks and that good real estate agents are worth every penny (if you can find one as good as Karen).
    Karen was an absolute pleasure to work with and she was there for us every step of the way. As first time home buyers we had lots of questions and Karen went above and beyond to answer all of them. We are also fortunate to have her negotiating for us because we got a home that we love at a great price! We are so happy to have worked with her and would recommend her to anyone we know looking to buy or sell in the area.
    We are first time homebuyers and although we did lots of research online, there were still a lot of gaps that Karen helped fill. She gave great recommendations through the process (with both pro's/con's of different options) and would ask questions on our behalf of things we wouldn't have even thought of. You can tell that she loves what she does and it's resonates through her hard work. She has her clients best interest at heart, which made the process so much smoother knowing you have someone on your side. She has so much experience, is very diligent and responsive.
    Karen is amazing. She is incredibly knowledgeable, professional, and calm. She helped us negotiate the purchase of two homes; We felt completely supported and informed at every step of the way during both purchases. Karen consistently goes above and beyond for her clients, and we could not recommend her more highly.
    Karen was very helpful every step of the way. As first time home-buyers, we were very intimidated by the entire process; Karen took plenty time to explain and re-explain this to us in a very patient way. Karen was incredibly accessible during our almost 9-month home search and routinely would email us updates at all hours of the day/night. Karen's husband is also a realtor which make's them twice as accessible and knowledgeable which was a great benefit.
    Karen had a very good grasp of the local real estate market and knew how to make a good deal without exerting undue pressure. She was incredibly responsive, very accommodating, and had her client's interest at heart. Overall, it was a pleasure to work with her.
    Karen is very proactive from the first time you meet her. She helps every step of the way. She sent us organizers, a handyman to fix small jobs, scheduled the open house and before we knew it our house was sold! So many details.. could not have done it without her!
    Karen is a wonderful real estate agent and she was extremely detail oriented and helps you through the entire home purchasing and home selling process. Would absolutely recommend her in a heart beat!
    On the buying side, Karen's negotiation skills saved us $25,000 off the list price of our new home with a seller who initially was not willing to negotiate at all. From there, Karen helped us navigate the rest of the purchasing process smoothly and efficiently. On the selling side, Karen was able to get us 8 offers in a single weekend, all over asking price. Unfortunately, our first buyer backed out after the home inspection, but Karen immediately went back to work. Within 24 hours of losing our first buyer, we had a signed offer with one of the other interested parties (for practically the same sale price), and the rest of the sale transaction was smooth sailing. Karen turned a difficult and stressful situation into a non-issue, and we ultimately sold our home for 15% over our asking price! Karen is dependable, knowledgable, trustworthy, and kind. We consider ourselves very lucky to have had her on our side for all of our real estate transactions. While we are now in our "forever home", we will definitely be using Karen again should any future Real Estate needs arise.
    We are first time home buyers and Karen was amazing to work with. She was very knowledgeable a really made sure that we understood every step of the process. When we would go to a showing she made sure that we knew what to look for and pointed out all of the really great attributes and the things that concerned her or would need attention. Once we found the perfect home she was able to write an offer in such a desirable way for the sellers, that they accepted it and we did not even have to get trapped in a bidding war. During the entire process Karen amazing! She replies to emails and texts immediately and at all hours of the day or night. We would absolutely send everyone that we know to Karen if they are buying or selling a home.
    We are so grateful that Karen Tanzer was our realtor for our recent home sale. We had intended to interview three agents, but she was so well prepared and insightful, we chose her and skipped making other appointments. We had a busy summer booked with two sets of house guests and a three-week vacation, and she expertly coached us on de-cluttering and the improvements that would pay off in a higher sale price based on her extensive local knowledge. We knew our preferred timetable would be tight and it was, but we made it. Thanks to her suggestions for service providers and solutions, and being able to call on others who had helped us before, we managed to get a lot done in a tight timeframe. Karens communication skills were showcased from her pitch perfect timing to drop by and encourage our efforts, help us keep on top of deadlines and agreements, and responsiveness to our questions. Her process expertise was invaluable when our first buyer dropped out without giving a reason and she got us set up for another open house right away. Her negotiation skills were showcased as she helped us weigh the pros and cons of two sets of multiple offers and work though counter offers. We are delighted with the outcome - buyers who really appreciated our home and garden, a timetable that worked for both parties, and a sale at over the asking price. And Karens support doesnt stop there. She helped with moving and relocation advice, brought us the check from the closing, and has continued to check in to see how were doing with our next adventure.
    If we had another home to sell, KAREN TANZER would be our realtor of choice! When she sold our home this spring, Karen got together with us 2+ months prior to our target time to put it on the market. She suggested what we'd need to do to attain our target sale price, including what needed to be removed from our home and what work we should have done to deliver the best return. Her suggestions were right on target. Her suggested vendors were wonderful to work with, provided excellent work, fair pricing, and cleaned up after themselves. We signed a P&S with the buyer within just a few days after putting the house on the market. Our sales price was greater than we anticipated. Karen's middle name should be "Responsive." If she couldn't take our call, we heard back from her right away. Karen was always upbeat and pleasant to work with. We can't imagine having a realtor that could deliver what she did for us.
    Karen is a pleasure to work with in every way, as is her husband, Billy. They were available for us day and night (sometimes all hours of the night!) and ushered us through the process as first-time homeowners with incredible support and skill. Once we found our dream home, Karen was masterful in guiding our negotiations for the purchase, and in calming our nerves! We cannot say enough about how professional and helpful she is - and recommend her to the highest degree. Even our contractors said to us "boy, she's so much more pleasant to work with than most people in real estate." We were fortunate to get the chance to work with Karen and will be forever grateful for her hard work to get our family into our new home.
    We cannot say enough in praise of Karen in the way that she handled both the sale of our home of 37 years and the contemporaneous purchase of a replacement home. She was incredibly helpful in providing relevant information to us about the process, as well as in advising us as to what needed to be done to prepare our existing house for sale, how to properly value our home, and what she thought would work for negotiating purposes in both the purchase and the sale. Karen was always professional, available, and immediately responsive, and went out of her way to oversee parts of the process that we would not have necessarily expected a real estate agent to get involved with (e.g., helping to oversee the installation of a new septic system at the house we were selling). Importantly, Karen was able to coordinate the difficult timing of first finding a replacement home, getting the sellers to agree to have the purchase be contingent on the sale of our existing home, immediately being able to then get our existing home on the market at a fair price, arranging three open houses in a two week period, quickly finding a qualified buyer, helping to expeditiously negotiate a fair sales price for our existing home, and then helping arrange for a sale and next day purchase, and addressing all of the many issues and deadlines leading up to the consummation of the transactions.
    Karen is truly the best at what she does. She was highly recommended by my best friend and I am so glad we used her. She walked us through the entire process, answered our stupid questions, reassured us when we were stressed and worried, and handled all the details like a pro. She was on top of us for things and on top of our lender. She gave us so much advice throughout the process and not just with the actual purchase of the house. She went above and beyond her duties, especially with the first house we put an offer on. She even hand delivered the offer and did everything she could to make us stand out and get the house! Our offer wasn't accepted, but it was not because of anything on her (or our) end, and after that, we ended up getting a house that was even better for us! Karen and her husband Billy were nice, personable, and I will truly miss working with them and communicating on a daily basis!! I will absolutely recommend her to all of my friends, acquaintances, and strangers!
    Karen was simply extraordinary in every way possible. I was looking for close to a year, and Karen not only was open and responsive to my many requests to see a home, she encouraged me to look, explaining that when I (finally) saw what I liked, I'd know it. She was right. Karen's responsiveness was beyond belief. She somehow managed to call me at the best times, and she took calls at just about any hour without sounding put-upon in the least. Karen also displayed impressive understanding and a quick grasp of favorable and unfavorable features of each home. She even had fabulous advice about what was worth fixing and approximate costs and what was not worth fixing, and great, creative ideas to solutions to problems. When asked, she gave me names of professionals (plumbers, electricians, painters), who all turned out to be very responsive and reliable. Karen explained the process of buying a home very clearly and was very patient when I needed a review or clarifications. I particularly admire the way Karen asks questions of sellers, agents, home inspectors, and tradespeople. She is calm and non-threatening and comes away with a lot of information. Karen is always cheerful and empathetic. She clearly loves what she does, from the most minute details to the big picture. She made what could have been an extremely tedious process both manageable and fun! I cannot imagine getting through this long transition without her.
    Karen is a true professional. She was thorough and extremely knowledgeable. Karen proved herself to be very informative and helpful while working with my elderly parents and myself. For example, she was patient and understanding while explaining the numerous steps to my parents involved in selling their home of 62 years. I would highly recommend Karen Tanzer.
    Not only did Karen help us buy our home, but she also helped us sell our home and has become like part of our family. With her exceptional knowledge of the local market, she was able to guide us through the process of setting up our home for sale. She worked with us on our unique timeline and effectively communicated our needs to our potential buyers. We have had a lovely experience and we only hope that we can take Karen with us to our future purchases and sales in other states too!
    Karen Tanzer is an excellent Real Estate Professional. She recently helped us purchase a new home and was a pleasure to work with from beginning to end. From finding the perfect home to getting it to closing, Karen was always available and communicated in a timely and clear fashion. She went the extra mile and even attended a Conservation Commission Meeting to help us understand an issue with our property. We highly recommend Karen for all of your real estate needs.
    Karen was a true professional and an absolute pleasure to work with. She took the time to walk us through the process demonstrating both her deep knowledge of the local market as well as what it took to successfully sell our house (we received a full-price offer in one day). She was thoroughly focused on every aspect of the transaction to ensure that all of the tasks associated with both the sale of our old home and the purchase of our new home were attended to in a timely and complete manner. Karen is a true pro and we enjoyed working with her.
    We found Karen Tanzer to be an outstanding real estate agent.She worked with us both when we were buying a condo and when we were selling the house we had lived in for over 40 years. She was very organized and would always respond to our many calls and E mails quickly and with helpful information. She referred us to a professional plumber and electrician. She seemed to really care about our transactions. We would recommend her highly.
    From day one Karen worked hard to help us find the right home. We felt like we were her only clients, even though we know she is very busy and in high demand. She understood our needs right away and was always available via phone and email, usually contacting us before we contacted her. As first time home buyers, she helped us think about things we wouldn't have known to otherwise. We would definitely recommend her to anyone! Not only will you find a home you love, but a new friend as well!
    We started looking for home at different towns at Massachusetts from last few months and finally focused at Sharon, MA. We were interested to find a home that relatively newly built but also closer to I-95 and allow us to commute easily both at Providence and Boston. Being first time home buyers, we had a lot of questions, not only about the house in general but also the process from initial offer to acquiring house. She was very professional, attending and reliable throughout the entire process as well as very accommodating. Karen was quickly able to answer all of our questions and she had a very knowledgeable and experienced familiarity with the town. Due to kids school and since we were moving from different State, we had limited time period available for viewings, Karen was incredibly efficient and organized when it came to compiling property viewings to accommodate our schedule, often making the best of our limited time. During later part of our search, we meet with her husband Billy and he had incredible knowledge about house constructions, repairs and remodeling. We are pleased to find our dream home in relatively short period of time. Both Karen and Billy has my highest unreserved endorsement!
    They say that a good real estate agent is worth their weight in gold, and this certainly reflects our experience with Karen! My spouse and I were not only new home buyers, but were also new to the area. As soon as we met Karen, we knew that she was the buyer agent for us because not only did she pay attention to detail and to what was important to us, but she also had a calmness about her that set us both at ease. Every time we needed something or were unsure, she was right there for us. Karen is very responsive and definitely gets the job done! We would recommend her in a heartbeat to anyone. Thank you, Karen for the great service - you are the best!

    My Experience

    • Registered Member-greater Boston Real Estate Board (gbreb)
    • Registered Member-national Association Of Realtors (nar)
    • Member Multiple Listing Service (mlspin)
    • Realtor, Registered Member-massachusetts Association Of Realtors (mar)
    • Licensed Real Estate Agent In Massachusetts
    • Boston University, Magna Cum Laude, Bachelor Of Science
    • Over 30 Years Of Sales And Negotiation Experience

    My Credentials and Memberships

    • ABR - Accredited Buyer Representative
    • Realtor & Accredited Real Estate Professional
    • Relocation Specialist
    • SRS - Seller Representative Specialist
    • Staging Professional
    • International President's Circle - Awarded to the Top 6% of All Sales Associates Internationally

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