
Professional Experience
Associated Office
Callie Milavsky Osler is a Senior Sales Associate in CBRE’s Toronto Downtown Office, delivering strategic solutions for clients across the GTA. She has been a Tenant and Landlord advisor since 2017, establishing trusted relationships with her clients and consistently achieving favorable outcomes with her business background, experience in research, extensive knowledge of the market, and transaction expertise.
Callie works closely with clients in a range of industries which has allowed her to build a strong and wholistic knowledge of the Toronto market. Over her career, Callie has successfully completed over 300 transactions on behalf of her clients. The consistent satisfaction of her clients speaks to the stellar quality of work and professionalism that she brings to each transaction.
As a recognized industry leader, Callie has received several notable accolades such as CBRE's Brokers’ Choice Award in 2024 as well as in 2023 and was name one of the Top 10 most active teams in Canada in 2024. In addition, she has continued to be at the top of the Top 7 Under 7 List at CBRE. She is a proud ambassador of the CBRE Women’s Network and continues to be a dedicated member of the CBRE Academy Committee Leadership Team.
Callie’s expertise includes:
- Tenant Representation
- Site Selection / Location Strategy
- Workplace Strategy
- Coworking
- Subleasing
- Listing Representation
- CBRE Brokers’ Choice Award, 2023 and 2024
- Top 10 Nationally – Transactions Completed, 2024
- CBRE Rising Star Award, 2024
- #1 – Top 7 Under 7 List, 2024*
- Richard Ivey Business School, Western University, Dean’s Honour List, 2017
- Completed a semester abroad at NOVA School of Business and Economics in Lisbon, Portugal, 2017
* Awarded to the Top 7 performers in the Toronto Downtown office among those with less than 7 years in the business
- Member, Toronto Real Estate Board (TREB)
- Member, Ontario Real Estate Association (OREA)
- Member, Canadian Real Estate Association (CREA)
- Adgar Canada Investments & Development
- CentML
- Chipotle
- Cohere
- Desloges Law Group
- Dorsey & Whitney LLP
- KingSett Capital
- Koru LP
- Madison Properties
- Northam Realty Advisors
- Novartis Pharmaceuticals
- Pacific Life Insurance
- Panago
- Radical Ventures
- Roland Berger
- Signal 1
- Softchoice Corporation
- Universal Studios

Toronto Office Advisory Team
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A Year in Review
Toronto Office Advisory Team services and 2024 transactions overview.
Welcome to the Toronto Office Advisory team. Led by Brian Porter and comprised of seasoned sales professionals specializing in advisory and transaction services, the team is recognized as CBRE's Top 10 most active teams across Canada.
The team leverages data-driven market intelligence, diverse expertise, and tailored client services to ensure their agency and occupier client’s real estate needs align with their organizational goals. Their commitment to fiercely representing clients' interests has driven their continued success.
The team’s ability to craft innovative real estate strategies that account for the intricacies of lease negotiation have established them trusted advisors in the industry. Since 2008, Brian and his team have completed over 1,000 transactions, consistently setting new standards, providing unparalleled service, and delivering specialized solutions to their clients.
Connect with the Toronto Office Advisory team to discuss how they can assist with the following services:
Toronto Office Advisory Team
CBRE Global
I have worked with Brian on a number of transactions for both office leasing and investment purposes. In all aspects, Brian was extremely professional to work with and managed all aspects of leasing, investing and selling the commercial properties I invested and leased. I would highly recommend Brian for any individual looking for a highly experienced individual that has a deep knowledge of the Toronto commercialreal-estate landscape.
Callie, it has been such a pleasure to work with you. Thank you for your efforts, for your time showing me all the offices, patiently answering all my questions, communicating our requests and suggestions to the landlord.

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In The News
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Completed Transactions
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