top of page


"Gem was the only one who understood my search..."

I worked with Gem while I was still living in Tokyo. I spoke to 10 agents ahead of relocating to Boston and he was the only one who understood my search, compiled an excellent list, showed me 22 properties in 2 days, and made helpful and wise recommendations on the two I bid on and the perfect one that I bought! When I sold my place to relocate to London, it was listed and shown to real estate agents on Friday, had a two hour open house on Sunday, got three bids. Gem accepted best and final offers on Monday, and it was sold, way above our asking price! He helped me stage it and price it perfectly to attract the right buyers. He is trustworthy, knowledgeable, understood my criteria, and is a real asset to any buyer or seller who sees property as an investment as well as a home.

Irene, Back Bay

"Gem made the whole process as simple as possible"

Gem made the whole process as simple as possible, taking care of all details, reacting very rapidly to every obstacle, ensuring to meet my expectations. Not only did he find the condo I was dreaming of, but he also assisted me to sell my previous one above my expectations, all of this in two weeks' time! Professionally talking he is a true expert as he has succeeded to create a network of professionals to achieve high quality results. I highly recommend Gem for his strong expertise but also for his profound human skills that created a trustful and very friendly business environment.

Alex, South End

"Gem and his team are awesome."

Gem and his team are awesome. I completed 2 real estate transactions with Gem and both were executed flawlessly. Gem is an exceptional real estate professional and a wonderful human being. I felt truly supported throughout the process. He understands the emotions that go along with selling and buying a home and provides calm, trusted support at every step- it’s more than just a business transaction. I highly recommend Gem Mutlu!

Kim, Newton

"Thank you to Gem and his staff who guided me each step along the way."

Gem's real estate expertise and his compassion for all involved in the process are traits I think would rarely be seen in the Greater Boston market. You could not be in better hands; you could not trust another to better represent you; you could not feel more comfortable than to have met and worked with this amazing man. I truly hope many others have the opportunity to do the same. Thank you to Gem and his staff who guided me each step along the way.  Thank you for the referral of excellent legal assistance. Gem, I could not have done it without you. 

Linda, Boston

"I was immensely satisfied with the outcome of this transaction."

I have just finished working with Gem on the selling of my South End condo in Boston. Gem did an excellent job, with great marketing, attention to detail, expertise in the process, excellent interpersonal skills, and provided open feedback until the closing. I received four offers in four days, and I closed at 20% over the asking price; simply amazing. Gem also suggested an excellent lawyer to assist me. I ended up very comfortably, with all the aspects of the process handled perfectly by Gem and by his Staff at Gibson Sotheby’s International Realty. I was immensely satisfied with the outcome of this transaction. I definitely recommend Gem as a Realtor to everyone.

Carlo, South End

"Alexandra had great referrals, remained tireless and upbeat"

We recently purchased our first home with Alexandra. Her knowledge of the Newton real estate market, responsiveness, confidence, support, authenticity and positive energy made the process less intimidating and enjoyable. Alexandra researched the market for us, found properties to visit and  guided us through the purchase process, anticipating the next hurdle. Prior to the close and starting light renovation, Alexandra accompanied us meeting many contractors. She had great referrals, remained tireless and upbeat. She offered sound advice throughout. We are grateful for Alexandra’s help.

Jenni, Newton

"Alexandra went above and beyond to enable a smooth process"

Alexandra is fantastic! I would recommend to anyone to work with her! We've had the chance to work with Alexandra to buy our new home in Boston, Back Bay, and her diligence on the market given our specific asks was phenomenal. She scouted such amazing properties that in only one day we were ready  to put an offer down and buy our place, understanding fully the price dynamics in the neighborhood. During all the closing time Alexandra went above and beyond to enable a smooth process. Thanks again Alexandra!

Clement, Back Bay

"Alexandra and Gem have created a seamless and very efficient work flow with all their associates and affiliates."

The Mutlu Group was recommended to us by a friend. We contacted them a few months before we came to the US. Over the course of a few emails and phone calls, Gem kindly walked us through the legal procedures, as well as the dynamics of the Boston real estate market. He also brought us into contact with the right lender for our situation –someone who had experience with foreign investors- and found the right attorney for us. And all this happened before we even arrived in Boston! When we finally did, Gem introduced us to his colleague Alexandra Haueisen. Alexandra understood our preferences and expectations very quickly and accurately. She graciously put up with our endless questions and requests about potential properties, crunched up all the necessary data to support our decisions and gave excellent advice whenever needed. She always had our best interest at heart. Even after we bought our condo, Alexandra continued to give us much needed support on repairs and renovations. Throughout the whole process and beyond, she was always there with her positive attitude, great ideas and expert direction. Alexandra and Gem have created a seamless and very efficient work flow with all their associates and affiliates. I cannot praise them enough for their help in making a complex and potentially stressful process so easy for us.

Omca, Jamaica Plain

Find more testimonials on
bottom of page