or Login


Sarah Zelermyer-Diaz

I had a fantastic experience working with the Zelermyer-Diaz team. From day 1 they managed my expectations, guided me through the entire process, and kept me up to date on progress. I was impressed with how quickly Sarah's team was willing to move, and their data-driven approach to selling a home in the digital age. We ended up selling my apartment well above recent market comps - I was thrilled with the return. If you're selling an apartment in Brooklyn- look no further...this is the team you want to represent you!

Ben, Prospect Heights


Thank you so much for working with us on our house purchase. Your patience and dedication were amazing, and we relied on your willingness to answer the smallest questions. We could not have done this without you! You have helped our family so much!

Thank you!

Stacy, Jesse & Charlie

"From start to finish, working with Sarah Zelermeyer-Diaz and Marc Karavasian was a complete pleasure. What's generally an extremely stressful moving process, both Sarah and Marc made effortless and enjoyable.

Sarah and Mark went above and beyond — truly out of their way — to craft an experience that was simple. Whether helping us view specific units many times over, answering general building questions or ensuring clear and focused agreement documentation, they and the team followed up on every single detail, making sure to guide us through important to-dos so that we wouldn’t miss a beat during the move into our new home.

And even when some initial timing complications with the space arose, they moved quickly to help us problem-solve. We worked with Sarah and Marc to negotiate a fantastic contingency unit that we loved more than the first; they were truly concerned about our well-being and making sure we were thrilled with our new home and able to move in with comfort, as expeditiously as possible.

Having rented and bought many times over the years in New York, we know how important it is to work with people you trust, who understand your needs and look out for you every step of the process (with those specific needs in mind). Sarah, Marc and the Zelermeyer-Diaz team are those trusted partners. We highly recommend working with them and hope to do so again in the future. "

Marc Karavasian

Hey Marc,

Just wanted to write and say thanks for all the tremendous help you gave us while navigating the apartment- buying process. We couldn’t have done it without you. So glad Greg passed your name along. Also, I think you the award for the fastest email response ever. Through the entire rigmarole, we felt like we were in good hands.

We’re all moved in & loving the new place. It’s always fun to see your furniture in a new setting. When everything is in place, you’ll have to come and check it out. Until then… thank you thank you!!!

J & Z

If you're looking to buy property in Brooklyn, you should hire Marc Karavasian. When you work with Marc, you can be sure that he is invested in finding you the *right* place -- not just the place he can find you the fastest -- and making sure you get it for a fair and reasonable price. He is an advocate, a resource, and a friend -- and frankly, you're going to need it.

I set out to buy an apartment in south Brooklyn after renting here for 7 years. I was financially secure -- employed, with 40% to put down -- and realistic about what I could afford. But this is a tough market, and it ended up taking a full year to find our place. Throughout the many open houses, viewing appointments, offers, and counteroffers, Marc was tireless, pleasant, and optimistic. He asked all the right questions, and came to understand what I was looking for almost better than I did. He always got back to me quickly, and he always gave it to me straight -- a welcome change after working with other brokers.

On a more personal note, I knew that NYC real estate is aggressive, but I wasn't willing to compromise my ethics or work with someone who would. Marc was not only knowledgeable, efficient, and hardworking -- he was and is a decent person, which is important to me.

Sandya, Kensington

Marc Karavasian was a pleasure to work with. He dug deep into his listings to accommodate my own & group's preferences and budget, going far above & beyond. Marc's been professional, informative & friendly - out of the 20+ agents I've worked with during various searches, he's light years ahead, in terms of customer service, reliability, helpfulness, and respectfulness. There was none of the overly pushiness that some agents have, so I felt like we were in good hands.

Most of all, I appreciated Marc's patience/agility while my group & I weighed our options. Marc thought on his feet and presented us a portfolio of a wide array of listings. His competence and commitment to ensuring us a great space really set him apart from others. Highly recommended, as Marc guided us through the process - we couldn't have done it without him!


I just wanted to send a note of deep thanks and appreciation for the time and energy you gave to the Parent's Forum at Cooper Union. As Los Angeleno parents of a 2nd year art student we were unable to fly out for the event, so imagine our relief and delight to see the video now posted today. You managed to kindly and swiftly pack a ton of helpful information into a short presentation and the accompanying printed material is also extremely beneficial, so thank you for all of it.



Licensed Associate Real Estate Broker

664 Fulton St

Brooklyn, NY 11217

Office: 718.942.6792

Mobile: 917.664.2374




Licensed Associate Real Estate Broker

664 Fulton St

Brooklyn, NY 11217

Office: 718.942.6791

Mobile: 516.835.4964




Email us »


or Login