Long Island Real Estate
(631) 587-1700 Contact Me

Mark T Donnelly

(631) 587-1700


(631) 321-7356

Mark T Donnelly

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Coach Realtors

463 Montauk Highway
West Islip, NY 11795

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"Mark is extremely knowledgeable and attentive, he is great to work with!! I would recommend Mark to anyone interested in buying/selling their home."

-Stacy, Port Jefferson Station

"We used Mark for both selling and buying homes in the past 2 years. He was very professional and caring. He worked very hard to sell our house for the best possible price even in a poor market. When buying Mark worked hard to find the style we wanted in our price range."

-Rich and Allison, Hauppague

"In the last year and a half Mark has helped my family purchase two homes. The first being one for my parents, and the second being my own.
 Both my parents work full time and have odd schedules, and Mark was available for them 24x7 to answer questions, show homes at odd hours, and eventually work his magic by getting their offer accepted on their new home.
 The same was the case when I finally decided to purchase my first home a few months later. Mark is a true professional and will do all he can to get the deal done. My family highly recommends him!"

-Mario, Babylon/Bethpage

"Dear Mark, I met many real estate agents while in my search of a new home, but it seemed the more I met, the more I realized I could not do this by myself! Everyone else was out to help the seller and in turn himself, but who was looking out for me? When I met you, your sincerity and honesty was refreshing! You not only helped me find my new home, but you guided me through the whole overwhleming process! I greatly appreciate all of your help and will surely recommend you to anyone I hear who is looking to buy or sell! THANK YOU!!!"

-Janis, West Islip, NY


"Dear Mark, Thank you so much for all of your help in finding me my new home! Your help walking me through the process is much appreciated! Thank you also for your generous house warming gifts! Love, Krissy"

-Kristen G, Islip, NY


"I wanna say a few things- A) I think you're a great agent and I appreciate everything you do/have done for us B) this really is a monumental decision. a lot has to be taken into consideration. a lot of stress and emotions!!! But, YOU MAKE THIS EASY!!!! thanks for everything. "

-Cait and Dan V., Hauppauge, NY


"Mark, Thank you for helping me find my new home. Thank you for the gift cards as well...Ive used them already for a few things for my beautiful new kitchen!!! Take care!"

-Fran, West Babylon, NY



"I just wanted to take the opportunity to thank you for steering me in the right direction with my first home!  It was a pleasure doing business with you and your team."

-Michael, Farmindale, NY


"Thanks so much Mark!!!! You have been more than helpful and it is greatly appreciated!"
-Greg, Farmingdale, NY

"Thank you for all of your help with house hunting. You were a pleasure to work with, and I would recommend you to anyone looking in your area!

-Ellen, Sunnyside, NY