About us
With over 30 combined years of experience, Sean Roseman and Sebastien Trottier have built a well-established team based on their negotiating skills, knowledge and most importantly, the devotion they have for their clientele’s well-being and vested interests. They have built wide ranging positive relationships within the real estate industry, enabling them to reach the best possible outcomes for both their buyers and sellers. Sean and Sebastien have attributed their growing success to countless referrals from clients that have appreciated the quality of service and personalized attention they received during their purchase or sale.
Our properties
$499,900
3865 Rue Allen, app. 301
Montréal (Verdun/Île-des-Soeurs)
Condo for sale
MLS 11154069
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$919,000
241 Allancroft Road
Beaconsfield
Two or more storey for sale
MLS 14271052
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$3,750 /month
69 Rue Léger
Hudson
Two or more storey for rent
MLS 23774004
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$2,249,000
79 Crois. Ashburton
Dorval
Two or more storey for sale
MLS 18569684
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$1,735,000
56 Av. St-Andrew
Beaconsfield
Two or more storey for sale
MLS 9580503
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$895,000
69 Rue Léger
Hudson
Two or more storey for sale
MLS 17053170
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Sellers
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Buyers
Contact us for help finding your new property
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Affiliates
Meet our trusted affiliates
Results you can count on
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81 Completed
transactions 2025 -
94 % Of average
of asking price -
81 served
clients 2025 -
38 day sale
average
What our clients are saying
5 stars - 51 reviews
Ben Bowen
Avis GoogleExcellent communication and extremely knowledgeable. Fantastic experience. Thank you Seb!
Mathieu Gauthier
Avis GoogleWithout Sean Roseman, there was no way our transaction would have succeeded. Plain and simple.
Gerry Montagano
Avis GoogleVery professional team
Hagar Nahum
ClientSean is exceptional—trustworthy, patient, and highly knowledgeable. From our first meeting, he impressed me with his professionalism, responsiveness to my questions, and excellent property...
Anthony Walcerzak
ClientBeing first time home buyers, we were very lucky to have had both Davina and Sean as our agents. They helped my wife and I find the perfect home to start a family. Along the way I would call or email...
Mélanie Dufour-Poirier
ClientJe suis vraiment très satisfaite de mon expérience avec Roseman Trottier! J'ai bénéficié en particulier du précieux concours de Davina Josepovici pour la vente de mon condo... qui s'est réalisée en...
Amanda and Jason
ClientAs first-time homebuyers we could not be more pleased with Davina's service and expertise. The entire process was as smooth and stress-free as a home purchase can be. We would not hesitate to...
David Ottier
ClientSebastien has that rare ability to take a nervous buyer and explain things clearly, slowly and followed with actual facts about the home, the inspection and the legal process of purchasing the home....
Oliver Wockner
ClientWe had a wonderful buying experience with Sebastien. He was incredibly helpful, available and patient. He offered very sound advice and did not put any pressure on us. He walked us through all of the...
Joseph Max Schmerler
ClientThese guys will go up and above in finding you the best price and service.... I highly recommend and they deliver every time.... Thanks again