MARCUS KOSMIN
ASSOCIATE DIRECTOR
Marcus Kosmin is an Associate Director at Cohen Handler, specialising in the strategic acquisition of premium property throughout Sydney’s Eastern Suburbs. Having commenced his real estate career in 2012 as a listing agent in Double Bay,
Marcus built his foundations working alongside some of the area’s top-performing agents. That experience gives him a distinct competitive edge today – he understands how campaigns are structured, how selling agents think, and where true leverage sits in high-pressure negotiations. Over the course of his career, Marcus has been involved in hundreds of millions of dollars in residential transactions, securing both on-market and tightly held off-market opportunities across the Eastern Suburbs.
Marcus is known for his disciplined negotiation style, deep local relationships, and ability to execute under pressure in one of Australia’s most competitive markets. His approach is strategic and data-driven, always focused on protecting his clients’ downside while positioning them to secure property decisively. As a local and family man himself, Marcus understands the lifestyle drivers behind Eastern Suburbs property decisions – from school catchments to long-term capital preservation – bringing both professional expertise and personal insight to every acquisition. His mandate is simple: secure the right property, at the right price, with absolute confidence.
Recent Purchases
Secured for Marcus's clients
Salisbury Square, Seaforth NSW
View → House
Beattie Street, Balmain, NSW
View → House
Plowman Street, North Bondi, NSW
View → House
Avon Road, North Ryde, NSW
View →
Hopetoun Avenue, Vaucluse, NSW
View → House
Latimer Road, Bellevue Hill, NSW
View →
Richmond Road, Rose Bay, NSW
View →
Lord Street, Roseville, NSW
View →
Water Street, Wahroonga, NSW
View →
Francis Street, Bondi Beach, NSW
View →
Wilberforce Avenue, Rose Bay, NSW
View →
Cooper Street, Double bay, NSW
View →
Knight Place, Castlecrag, NSW
View →
Dalmeny Avenue, Rosebury, NSW
View →
Australia Avenue, Matraville, NSW
View →
Mawson Parade, Chifley, NSW
View →
Paine Street, Maroubra, NSW
View → House
Beach Street, Coogee, NSW
View →
French Street, McMahons Point, NSW
View →
Chris Bang Crescent, Vaucluse, NSW
View → House
Pardey Street, Kingsford, NSW
View →
Llandaff Street, Bondi Junction, NSW
View →
Morden Street, Cammeray, NSW
View →
Foam Street, Freshwater, NSW
View →Marcus has secured every property here — and many more we can’t publish. Yours could be next.
Get in touch with MarcusClient testimonials for Marcus Kosmin
“Hear from Clients and Real Estate Agents about working with Marcus Kosmin and how he gets the best deal for his clients”
INSIGHTS & MARKET UPDATES
Transcript: In Their Words | Marcus Kosmin
[00:00] **Simon Cohen — Founder and CEO, Cohen Handler:** Dedicated.
[00:01] **Zac Rabin — Associate Director, The Rubinstein Group:** Transparent.
[00:02] **Alexandra — Client:** Efficient.
[00:02] **Dion Markovics — Sales Executive, Ray White Double Bay:** It’s very proactive.
[00:04] **Michael Pallier — Managing Director, Sotheby’s International Realty:** But the full package is great.
[00:06] **Zac Rabin:** Love Marcus as a person, but as a professional, he frustrates me because he’s an amazing negotiator.
[00:12] **Dion Markovics:** I get frightened when Marcus walks through the door with a buyer.
[00:16] **Michael Pallier:** He’s always known real estate. He’s always lived in the eastern suburbs. He has wonderful product knowledge.
[00:20] **Alexandra:** Like you’re talking to a real human who understands your experience.
[00:24] **Simon Cohen:** When negotiating, he’s armed with evidence and facts, and information that no one else has.
[00:29] **Matthew — North Bondi, Client:** Having somebody like Marcus that had a little bit more patience than even what I had—you know, we’re very happy with the outcome that we achieved.
[00:35] **Brad — Bellevue Hill, Client:** Holding those people’s hands, you know, taking them through, giving them the confidence that they’ll find something—that was a huge one.
[00:41] **Michael Pallier:** He tries really hard to get the best deal he can for his clients.
[00:44] **Simon Cohen:** We both fight for the ultimate lowest price and best outcome for our clients, and that’s something I greatly respect about him.
[00:52] **Alexandra:** No hesitation to recommend Marcus and the whole Cohen Handler team.
[00:56] **Zac Rabin:** If you’re looking for a buyer’s agent who genuinely wants to source you something that no one else can source, and then acquire it for you as cheap as possible, definitely Marcus is your guy.
Transcript: Client Testimonial | Alexandria
Speaker 1 (00:00): Not just time, but so much money. I never would have thought before using a buyer's agent that it would be worth it. We would definitely use Marcus and his team again to purchase our next home. They made everything so easy when every time I would go see a place, if I was bringing the kids, they would make it that the access was easy so that I could either park in the driveway. They thought of so many details in advance to tell us so that when we would view a property, our experience was a lot easier. Marcus contacted us the night before this house was to go to auction. And once we came, we loved it. Knew that we would be able to make this a real home for our family.
Speaker 1 (00:38): He was able to secure the property before it went to auction that night for us. Funnily enough, this was the home he grew up in. So coming back here was like a full circle moment for him. We purchased this property with a non compliant pool fence. We knew that as soon as we settled, we wanted to have a family celebration here for our children's second birthday. And his team managed to negotiate with the vendor to give us access during that period so that we could install a brand new pool fence. And it was purely through, through Marcus's approach and relationships that we were allowed to have that sort of access to the property. And we had a wonderful celebration here with memories that we'll cherish forever.


