617 Real Estate Group is a market leader in Greater Boston Real Estate. We specialize in providing individualize service to each client regardless of their project. Our goal is to make our clients have the easiest transaction possible. Whether you are buying your first home, an investment or vacation property, leasing a luxury townhouse or a studio apartment, we treat all of our clients with respect and admiration.

Our office utilizes the most up to date real estate databases and property management software to deliver our clients the best results possible.

No matter what you are in the market for, the agents and professionals at 617 Real Estate Group can help make your dream a reality.


The Professionals at 617 Real Estate Group are trained in every step of the Real Estate Process and stay up to date on the latest changes to market conditions, legal issues and financial matters to help our clients make the most informed decisions possible.

Real Estate Purchases

We strive to provide our clients with the most options available considering their needs, wants, price range and location. We do this by regularly reviewing updates on MLS, communicating with our exclusive contacts, off market availability and additional sources of information we have access to. If there is an option out there, our clients will know about it.

Real Estate Sales

When our clients approach us interested in selling a property, whether it’s their family home, an investment, vacation house or anything else, we help them every step of the way. Reviewing constantly changing data, we determine the price, staging, description and needs to ensure our clients receive the highest value for their property and have as smooth of a transaction as possible. We are able to provide professional photography, staging, lighting, open houses, virtual tours and more to make sure a potential buyer sees everything they need in a beautiful and convenient way.

Property Management

Our team of associates has over ten years of providing property owners professional property management services in any setting. Whether it’s a single condo unit in Brighton to a 100 unit development in Downtown, we have worked with it. We provide state of the art accounting software, handle all maintenance and tenant issues, lease renewals and terminations, evictions, and anything else a property owner may need. Our rates are among the most competitive in the industry, but our service can’t be beat.


All of our associates started as leasing agents to build their foundation to the professionals they are today. We continue to lease the top of the line units to our clients throughout Greater Boston. Using public databases and exclusive listings, we are able to find our clients the perfect home and our Landlords the perfect tenant(s). All potential tenants are put through background and credit screening including landlord and employer references.

What People Say

I’ve had the pleasure of having Sam Grossack  assist me on all my rentals over the past decade. His knowledge of the Boston rental market has led me to trust in him helping me buy my first home. Sam Grossack brings a level of professionalism and work ethic that goes beyond any expectations you may have. I would highly recommend Sam and the 617 Real Estate Group to anyone looking to rent or buy a home in Boston or its surrounding city’s.

-Miles (Newton, MA)

I’ve known Sam for a couple of years and he has been my go to person when I have questions about property management and renters rights. Additionally, his knowledge of the real estate market has been nothing short of helpful as I begin my search for a new place to live. I wouldn’t want to work with anyone else.

-Kristina (Newton, MA)

Sam has been amazing in helping us find a house during this crazy time.  He is very knowledgeable regarding neighborhoods and has made some great suggestions for houses that we had initially not been looking at.  He has also helped us figure out exactly what each place is likely to be sold for, which has helped a lot with bidding (our new place is under agreement now!).  Sam is a very hard worker, and replies to my messages very quickly.  Highly recommend!

-Cliff (Newton, MA)

Looking to invest in some property and Mr. Sam was more than accommodating to my restrictions and criteria. I loved working with him. It was a long process and were still in search of the perfect property but he has been exceptionally patient with us. I appreciated that he did not pressure us to purchase anything we were not yet comfortable with and made sure to ask essential questions on our behalf. I truly felt like he had our best interests at heart. I am happy to continue working with this company and would highly recommend anyone to take a look.

-Kamellia (Washington, DC)

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Contact Us

With the aim of helping as many people as possible, we encourage you to email us with any questions or proposals.

Samuel Grossack – Sgrossack@617regroup.com