
The Agent
Mark Karten is a REALTOR® and the founder of Karten Real Estate Services, offering flat-fee or traditional MLS listings across Queens, Manhattan and Long Island. With 22 years in New York real estate, he specializes in helping sellers get full service without paying full commission.
Meet Mark
Working Together
No call center and no handoffs. The broker you meet at the first showing is the person negotiating your offer and sitting with you at closing. For what is available right now, including anything not yet listed, call or send a note.
How I Help
Three places to start, each handled personally by Mark from the first call to the closing table.

A patient local search across Bayside, northeast Queens and Long Island.
Explore Buying →
Flat-fee or traditional MLS listings, priced to what has actually closed nearby.
Explore Selling →
A direct conversation with the broker himself, not a call center.
Request A Consultation →Currently Available
Mark's site runs a full regional listing search alongside his own flat-fee and traditional listings, so what is available changes daily. Call or send a note and he will tell you exactly what fits, including anything not yet advertised.
Thinking About A Move
A private valuation, prepared personally by Mark, drawing on 22 years in New York real estate.
Request A ValuationLooking To Buy
New listings across Bayside, northeast Queens and Long Island, sent as they come up.
Set Up A SearchClient Reviews
Sellers and buyers across Queens and the surrounding boroughs.
Mark Karten did an excellent job in selling my home in Flushing. He followed through on every promise he made regarding his listing and marketing process, especially his use of his signage, technology, and ability to access the house virtually 24/7. As a result, we had many showings as well as offers. Mark was a great communicator, updating me consistently regarding changes in the neighborhood regarding competing listings and closings and how they would affect my property’s value. Mark is clearly experienced and professional from start to finish and I highly recommend him to anyone considering the sale of their home.
Mark was great! Mark was available no matter how many questions or changes were made from beginning to end. I would work with Mark if I have to do it again!
Mark was a delightful professional. My wife and I recently closed on the sale of our home of 25 years. Mark Karten provided the ideal mix of real estate knowledge, patience advising us as our listing agent, and wise advice throughout from preparation of our listing to pricing to fielding offers. We would recommend Mark Karten to any buyer or seller of New York residential property. You couldn't find a more effective and easy to work with pro.
Excellent level of service. Mark Karten provides an excellent level of service. He was available whenever needed to ensure we were doing things correctly, and to provide support. I would recommend him without reservation as Mark provided an outstanding experience.
A very helpful guide and advisor. Mark knows his stuff. He advised me in selling our home and it was a success. He is very communicative and responsive. Make sure to watch his intro video that answers almost all of your questions you might have. For sellers who are willing to put in a bit more work, Mark is the perfect partner to providing wise and timely guidance. Some higher level advice is properly priced as they are worth it. I highly recommended Mark to anyone who is using Houzeo to sell their own home.
Professional and helpful. Mark was easy to work with and very helpful with the process. First time using Houzeo was easy with his help. He also was very responsive.
Wonderful experience! I was paired with Mark through Houzeo. I honestly couldn’t have chosen a better agent myself. He was very responsive! And, he put our mind at ease through the complicated sale of my parents house. He was available to answer all of my questions. I would highly recommend Mark for all of your real estate needs! Thanks, Mark!
Mark Karten did an excellent job in selling my home in Flushing. He followed through on every promise he made regarding his listing and marketing process, especially his use of his signage, technology, and ability to access the house virtually 24/7. As a result, we had many showings as well as offers. Mark was a great communicator, updating me consistently regarding changes in the neighborhood regarding competing listings and closings and how they would affect my property’s value. Mark is clearly experienced and professional from start to finish and I highly recommend him to anyone considering the sale of their home.
Mark was great! Mark was available no matter how many questions or changes were made from beginning to end. I would work with Mark if I have to do it again!
Mark was a delightful professional. My wife and I recently closed on the sale of our home of 25 years. Mark Karten provided the ideal mix of real estate knowledge, patience advising us as our listing agent, and wise advice throughout from preparation of our listing to pricing to fielding offers. We would recommend Mark Karten to any buyer or seller of New York residential property. You couldn't find a more effective and easy to work with pro.
Excellent level of service. Mark Karten provides an excellent level of service. He was available whenever needed to ensure we were doing things correctly, and to provide support. I would recommend him without reservation as Mark provided an outstanding experience.
A very helpful guide and advisor. Mark knows his stuff. He advised me in selling our home and it was a success. He is very communicative and responsive. Make sure to watch his intro video that answers almost all of your questions you might have. For sellers who are willing to put in a bit more work, Mark is the perfect partner to providing wise and timely guidance. Some higher level advice is properly priced as they are worth it. I highly recommended Mark to anyone who is using Houzeo to sell their own home.
Professional and helpful. Mark was easy to work with and very helpful with the process. First time using Houzeo was easy with his help. He also was very responsive.
Wonderful experience! I was paired with Mark through Houzeo. I honestly couldn’t have chosen a better agent myself. He was very responsive! And, he put our mind at ease through the complicated sale of my parents house. He was available to answer all of my questions. I would highly recommend Mark for all of your real estate needs! Thanks, Mark!
Background
Mark built Karten Real Estate Services around a simple idea: sellers should not have to choose between full service and a fair rate. He has run the firm himself since 2017.
Real estate broker serving Queens, Manhattan and Long Island since the early 2000s.
Karten Real Estate Services LLC, an independent firm in Bayside since 2017.
Working from his Bayside office, with reach across northeast Queens and Long Island.
Areas Served
Six northeast Queens communities Mark works, from his Bayside home base out toward Long Island.
Home base for Karten Real Estate Services, in the heart of northeast Queens.
Ask About Bayside →
A quiet, family-oriented community on the Queens/Long Island line.
Ask About Little Neck →
Waterfront-adjacent blocks with easy access to the Whitestone Bridge.
Ask About Whitestone →
A mix of co-ops, condos and single-family homes near Cunningham Park.
Ask About Oakland Gardens →By Appointment
Buying or selling anywhere across Bayside, northeast Queens and Long Island.
Request A Consultation