About Mary Summerville

Mary

Agent Details

Meet Mary

With over 30 years of experience, 1,746 transactions closed, and $â…” billion in sales, Summerville Partners has built a loyal clientele by demonstrating exceptional market knowledge, outstanding customer service, and the utmost integrity. The team prides itself on its client-centric philosophy which requires continual honing of skills and adaptive ways of doing business. Summerville Partners stays ahead of the curve on market inventory and employs the most current technologies and systems to identify and close on prime opportunities while negotiating the best possible results.

Their partnered approach ensures that every client of Summerville Partners receives an unparalleled amount of personal attention, diligence, and industry expertise. Their goal is to give clients peace of mind, knowing they are working with professionals who have their best interests at heart. Their definition of professional includes arriving on time, keeping promises, and admitting mistakes. The team shares a common focus on building long-term relationships. Their interaction with clients doesn’t end at the closing table—it begins there.

Mary Summerville has been selling real estate in Chicago and the Northshore for 30+ years specializing in single-family homes, condominiums, and development. Mary’s longevity through decades of real estate cycles is a testament to her adaptability and in-depth understanding of the market. Her strengths in the determination of value and negotiating strategy instill client confidence and ease surrounding the process. Mary focuses on getting her clients the best possible outcome while maintaining an understanding of the emotional and financial demands of any transaction.
 
Mary strongly believes in giving back to the community she and her team have thrived, which led to her deciding to serve on the Art Encounters board and sponsor the Evanston Mural Arts Program.
 

Mary Summerville at a Glance

Strengths & Expertise Achievements & Recognition
39+ years of real estate experience #1 Broker in Evanston, 2023 & 2024
Deep market knowledge of Chicago & North Shore Top 1% North Shore
Skilled in property valuation & negotiation Gold Top Producer – Chicago Association of REALTORS®
Specializes in single-family homes, condos & development Certified Luxury Home Marketing Specialist (CLHMS)
Trusted by multiple generations of families Senior Real Estate Specialist® (SRES)
Dedicated to ethical & client-first service Global Luxury Specialist designation

Key Client Advantages

  • Personalized guidance backed by nearly four decades of success.

  • Proven ability to achieve optimal outcomes in both buying and selling.

  • Recognition from Crain’s Chicago Business as a Notable Residential Real Estate Broker.

  • In-depth expertise across Evanston, Chicago, and the greater North Shore.

  • Commitment to professionalism, integrity, and long-term client relationships.

Our Testimonials

See why our clients love working with us
Eileen M.

Eileen M.

Jason walked with us every step of the way until we closed on our dream home. He understood our wants and needs - even when they weren’t typical. We never felt rushed or pressured. Instead, his office knew how to navigate each ...
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G.H.

G.H.

Mary not only knows houses, but she's also extremely connected and was able to give me tons of great recommendations for obtaining financing, finding an inspector, and even contacts for assistance with home improvements post-cl...
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G.H.

G.H.

Mary Summerville is an incredible real estate agent. I came to her for help in finding my first house and not only did she find me my dream home, she made the process incredibly easy and guided me through the whole thing. She i...
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Jenny D.

Jenny D.

Jason was fantastic to work with and went above and beyond throughout the entire home-buying process. We couldn't have asked for a better real estate agent. He was responsive and organized as well as patient as we searched for ...
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B.R.

B.R.

We had the best experience working with Mary. They are very knowledgeable, know the area and the market well, and steered us in all the right directions. Highly recommend - you'll be working with the best around!
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Seeda L.

Seeda L.

Mary is great. Professional and responsive. She listed my home and got me to close in a timely manner. Her staff is great too, going above and beyond to get the job done.
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Kand S.

Kand S.

We had an outstanding experience working with Jason. Jason expertly steered us through a highly competitive seller's market and helped us to find a wonderful home. He and his team are incredibly professional and responsive. Jas...
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E.H.

E.H.

We found ourselves needing to move right in the middle of the COVID-19 shutdowns and were afraid it would make it more difficult to sell. Mary was able to have our condo photographed and listed within a week; we received multip...
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Burke

Burke

My husband and I both bought and sold our Roger's Park condo with Mary Summerville. It was a great experience both times and we highly recommend using her agency!
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Diane B.

Diane B.

Our experience with Mary was awesome from day one. Their knowledge of the market was spot on and their advice was priceless. Her help with staging went above and beyond what we expected. Items were brought to the house to help ...
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Daniel P.

Daniel P.

I know Jason will go above and beyond to support you in this daunting process, as he did for me. He has been on this journey with me for over 5 years, using his experience to guide me to my dream home. He took the time to ask m...
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Randy E.

Randy E.

I have known and done business with Mary Summerville for the past 7 years. During this time I have always been impressed with her professionalism and her negotiation abilities. Whether she is representing a buyer or working as ...
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Buyer

Buyer

Jason helped me secure my first home in 2018. He was incredibly patient while helping me understand my options, thorough in gathering details about what I was looking for, super responsive when new listings became available to ...
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Heidi C.

Heidi C.

I have had the pleasure of working with Mary for numerous years. She provides excellent services to her clients, whether selling or purchasing and never hesitates to go above and beyond what is customary in the industry. Mary b...
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Lauren S.

Lauren S.

My partner and I were first-time home buyers and really enjoyed working with Jason. He gave us honest advice, was extremely responsive, and always had our interests at heart. He also has a great supporting team, everyone he rec...
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Suzanne M.

Suzanne M.

Jason made the home buying experience a lot less intimidating. He helped us find options that fit what we were looking for and had a good balance of optimism and practicality. He's knowledgeable of the Chicago area and gave us ...
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Geoff H.

Geoff H.

Mary's knowledge and service are exceptional! Mary clearly wanted us to buy the right property and was willing to show us properties until we found it. She pointed out flaws and problems in each property and noticed many things...
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Tom S.

Tom S.

Mary is the best realtor I have dealt with. I have bought, sold, or built 12 times. In those dozen experiences, Mrs. Summerville is the best combination of expertise, local knowledge, communications, and ethics that I have been...
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Buyer

Buyer

Jason was an absolute dream to work with! He listened to all of our requests, responded super quickly, and had tons of insight about the homes we visited. We found (and bought) a place that we love with nearly no stress on our ...
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Roski A.

Roski A.

Jason was a great agent. He did everything possible to make sure all my needs were met and questions answered. He was communicative and reassuring through every hurdle. I can’t recommend him enough.
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Whether you are buying or selling a home, you’ve come to the right place to achieve success in Chicago’s exciting housing market.

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