About us

GC ADVISORY GROUP INC

GC Advisory Group Inc, is a Long Island-based company that takes pride in delivering the ultimate customer service real estate experience. Whether you are a buyer, seller, renter, or investor, we offer custom-tailored solutions to suit your needs. With over 25 years of combined professional experience in both residential and commercial real estate, we specialize in property acquisition and disposition, investment strategies, landlord/tenant representation, public-private partnerships and appraisal services. In addition, our expertise in the marketing & sales of solar-powered homes is unsurpassed. This unique skill set is in high demand and assists sellers in achieving the maximum value for their homes. GC Advisory Group simplifies every real estate transaction while focusing on our clients priorities, and exceeding their expectations. We look forward to meeting you!

MEET OUR TEAM

Gina Coletti
Licensed Broker / Owner
Gina Coletti
Licensed Broker / Owner

Gina Coletti is a respected woman of accomplishment for her spirited leadership and significant contributions for the enhancement of our region.

Christina Mathieson
Licensed Agent
Christina Mathieson
Licensed Agent

Christina Mathieson is a results-oriented business strategist and lifelong entrepreneur who proudly
encourages those around her to dream big and motivated by an unwavering social responsibility.

MEET OUR TEAM

TESTIMONIALS

Read what our clients have to say about us:

Gina made selling our home of 40 years and finding our new dream home a wonderful experience. She was dedicated to get all the details between the parties in order so that it was a smooth transaction for all.
by Philip F. Goehring, Jr.
We have worked with other realtors in the past, but none came close to the positive experience we had with Gina. She knew exactly what we wanted & never put any pressure or guilt on us when we weren’t interested in a house. She quickly moved on a house she felt was what we were looking for, we got the perfect house & couldn’t be happier. I would definitely recommend her to anyone looking for a reliable, cheerful & hard working realtor.
by Lucille Prato
We contracted Gina to sell my mothers home, we lived out of state and we knew it would be challenging process. We were wrong, my mother who was the original owner of a 62 year old house in Commack was sold in 5 days over asking price! Gina was very knowledgeable in knowing what to ask for the house, we had some areas that needed to be addressed and Gina gave us some referrals who came quickly and did such a great job. Gina was spot on every step of the way and we very grateful that we had Gina sell our childhood home. Our home sold quickly and closing in less then a month. Thanks Gina...what a positive experience we had!
by Claudia Seltenreich
Simply put, Gina Coletti is a miracle worker. When we were finally able to put our house on the market, I was doubtful we would get any decent offers. With her advice, smarts, time and attention to detail, we got multiple offers within hours! It was painless to sell from start to finish. When we were looking for a house, she asked us all the right questions and again researched thoroughly, and we ended up buying the third house we saw. Our dream house. She knew. Gina did all this with the utmost professionalism, with care and with a smile. Wonderful experiences. Thanks, Gina!
by Heather Johnson
We are so grateful for Gina's services with the sale of our Mother's home. We were not experienced in home sales and making it more difficult we were not residents of New York and scattered around the country. Gina was always available for us and expedited services we needed to complete with our limited time in NY. She was always honest with us and we certainly benefited from her experience. I highly recommend her whether you are buying or selling a home.
by Nanette Mayer

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