Marnie Seinor

Marnie Seinor

Licensed Real Estate Agent at McGrath Coogee
  •   5   (164 reviews)

About Marnie

A consistently high achiever, Marnie Seinor has enjoyed a career spanning 20 years in the South Eastern Suburbs property market. She has built a reputation of achieving record breaking results, with her recent accolades by achieving the Australian Real Estate Business’ Top 100 Sales Agents 2016, as well as been awarded the 10th Top female sales agent in Australia. Marnie is among the elite few to have an intricate local market knowledge teamed with enthusiasm and exceptional communication skills with a focus on building long term relationships with clients and buyers alike. Marnie believes the key to manage a successful campaign is achieved by maintaining a comprehensive service solution with personal attention. She strives to generate a keen understanding of the client’s needs to deliver a tailor made strategy to reflect their desired outcomes. Possessing a natural talent for sales, coupled with her strong community presence in the local area. She is inspired by helping people making a consistent effort to ensure all expectations are exceeded.

Marnie's reviews

  5  
Marnie has 164 reviewsacross 24 different locations, showing 6.
Review Marnie
3 days ago
Excellent experience selling from overseas

Marnie and her team did an excellent job of selling our apartment in Kingsford, Sydney. In a difficult market, they chose a good strategy, applied it well and got us the price we wanted. We particularly appreciated the efforts they made when the auction price was significantly lower than we wanted, working the room to make sure we made our target. An added complication was that we'd moved back to Europe but they handled that with ease, facilitating communication so it worked even with a 10 hour time difference. A great experience and I'd recommend Marnie and her team to anyone!

11 months ago
Exceptional Agent. Highly Recommend.

Marnie is exactly the kind of agent you hope to find - one who combines exceptional market knowledge and instincts with authentic warmth and care. Together with her (all wonderful!) team, she crafted a flawless sales campaign that felt strategic, considered and beautifully executed from start to finish. Communication was clear and consistent, every detail was handled with the utmost professionalism, and her calm, confident approach made the entire process smooth. It was a pleasure working with someone so capable, communicative and genuine. I wouldn't hesitate to recommend her.

11 months ago
Amazing Service, Fast Sale, Attention to Detail and Total Professionalism!

We had an outstanding experience working with Marnie. She is incredibly professional, knowledgeable, and efficient. From the moment we spoke the speed at which she got our unit onto market within the week was unbelievable. Marni's excellent attention to detail and a deep understanding of the market, helped us sell our property quickly. What truly set Marnie apart was how she went above and beyond—especially in handling our tenants, who were still occupying the unit during the sale. We couldn’t have asked for a better agent and highly recommend Marnie to anyone looking for expert guidance and exceptional service.

11 months ago
Great campaign from start to finish.

Marnie was fantastic from the start, quick to take & return calls, always there to help with any questions. Marnie and her team were so professional. Clear and honest information after every inspection and in the end a fantastic result for our Auction.

11 months ago
Your Expert in the Property Market

I wanted to sincerely thank you both for your diligent work and the effort you've contributed throughout the campaign. I really appreciate the professionalism, guidance, and commitment you've shown from the very beginning right through to settlement . Your support during the process has made a real difference, and I'm grateful for everything you’ve done to help achieve this outcome.

11 months ago
Delighted with the service

Marnie was very attentive throughout the process, keeping us informed of all updates concerning the property. She checked in multiple times, outlining the sales process and considerations and left us feeling confident that we had all the information we required to make an informed decision. We felt assured the whole way through that we were in safe hands, guided by an expert in the area.

Show all 164 reviews

Marnie's properties

Marnie has 4 properties for sale and sold 51 properties in the last 12 months, showing 4, sorted by most recent activity

SoldAug 21, 2026
Price not available
14/15 Begonia Street
Pagewood NSW 2035
3
3
2
Townhouse
For Sale
Price not available
27 Dawes Street
Little Bay NSW 2036
3
2
3
House
For Sale
Price not available
5 Ritchard Avenue
Coogee NSW 2034
2
1
2
Duplex
For Sale
Price not available
B24/495 Bunnerong Rd
Matraville NSW 2036
3
2
2
Apartment
Show all 55 properties
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