Slideshow and Quick Search
Start Your Search
"Serving Greater Boston and all of Massachusetts."
I was born and raised in Massachusetts. I studied electrical engineering at the University of Lowell in Lowell, MA.
In 2000, I received my Massachusetts real estate agent license and hit the ground running, and had a great first two years at RE/MAX Real Estate Professionals in Shrewsbury, MA.
In 2002, I received my Massachusetts real estate broker license and opened Mark C. Sullivan Real Estate.Read more
Featured Properties and What's New
Sorry we are experiencing system issues. Please try again.
It takes a highly qualified real estate agent to perform at the level that some of the world's wealthiest celebrities demand. Here are the top ones serving Hollywood, according to ...
This week: There are some bad actors out there. It's up to you to protect yourself and your clients from fraudsters, scammers and cybercriminals. ...
A judge struck down claims that defendants conspired to "fix," "maintain" and "increase" prices for buyer brokerage services, but allowed claims they sought to "control" prices to ...
Mark inherent caring and helpful personality have made this process stress free for me. He makes himself available and takes the time to go over any important details or questions. I would highly recommend him to anyone who is interested in buying or selling real estate.Read more
Mark Sullivan has so much knowledge on the buying process we are so thankful for him and the help he has provided us. He truly has been a blessing and we will be suggesting him to anyone we know looking to buy or sell.Read more
Mark has been incredible in helping us buy and sell multiple properties. He answers the phone at any time of the day or night. He has unmatched experience and knowledge of the whole state of Massachusetts. Multiple members of my family have also used him and have the same experience highly recommended.Read more
Mark made me feel at ease through the entire home buying process. He helped me every step of the way from showing me houses to helping me understand the paperwork. He made me feel comfortable by showing me the numbers and potential turn around on my investment. Mark traveled up and down from western ma to south shore to show me houses which was gre...Read more
Mark was an excellent Real Estate Agent for us. We were first-time homebuyers and he thought of purchasing a home seemed so daunting at first. Mark help us feel comfortable and educated us in the home purchasing process. He was always cheerful, patient, and always ready to answer our questions. We saw many houses before we found the right one. He a...Read more