Juan-Alonso Papathanassiou
Trnctn Mgmt Sr Manager
Professional Experience
Associated Office
With over 25 years of commercial real estate experience, Juan-Alonso Papathanassiou has acquired vast experience working with a variety of commercial real estate users in the office, retail and industrial sectors. His clients include federal entities, various types of retailers, and small, medium and large corporations whose real estate portfolios span across the Americas.
Working as a Transaction Manager at CBRE Montreal, he offers a diverse range of services, including real estate strategies and optimization, property acquisitions and dispositions, market studies, negotiation, quantitative and qualitative analyses, and guidance in the review and execution of real estate transactions and related documentation.
Starting his commercial real estate career as a lease administrator and paralegal for a large clothing retailer, Juan-Alonso managed a portfolio of, at its peak, approximately 260 locations across Canada and the United States. In 2013, he transitioned into brokerage at Devencore (now Avison Young), where he worked on office, industrial and retail transactions.
Juan-Alonso sets himself apart with a robust work ethic fueled by his drive for excellence. His enthusiasm contributes to the success of client projects and increases efficiency and productivity within his team. He also takes an active role in mentoring and training junior team members and colleagues. Over the years, Juan-Alonso's strategic approach to managing and optimizing real estate portfolios has resulted in positive outcomes for his clients including acquisitions and dispositions, new leases, relocations, renewals, subleases and terminations.
Montreal Tenant Representation Team
When you choose our team, you’re choosing expertise, dedication, and results-driven solutions
Montreal Tenant Representation Team
Available Properties
Search Properties
Our tenant representation team, co-led by Vice President Liam Mayes and Executive Vice President David Cervantes, brings over 40 years of combined experience in delivering tailored real estate solutions. Specializing in office leasing and corporate multi-market account management, our team is dedicated to aligning your real estate strategy with your business goals.
Our visionary approach in tenant representation ensures that our clients benefit from forward-thinking strategies and the full spectrum of CBRE’s global resources. We combine deep market knowledge with innovative strategies to secure optimal outcomes, whether you’re negotiating leases, optimizing your portfolio, or expanding your operations. With Transaction Manager Juan-Alonso Papathanassiou ensuring seamless execution of complex transactions and Marketing Specialist Yagmur Eminoglu enhancing our marketing initiatives, we offer a comprehensive, high-impact service that drives value.
Additionally, David Cervantes extends our capabilities into the dynamic data center sector, leveraging his expertise to advise on technical brokerage transactions and strategies for clients looking to secure data center solutions.
When you choose our team, you’re choosing expertise, dedication, and results-driven solutions that will position your business for success. Reach out to learn how we can support your real estate needs.
Recent Montreal Office Insights
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Montreal’s commercial real estate market had mixed results in 2025, with office vacancy downtown hovering around 17.8% while industrial availability climbed steadily on the back of softened large bay demand, hitting 6.7% in the fourth quarter.
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Six commercial real estate projects to watch in 2025.
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CBRE’s Nari Aznavour discusses the state of coworking in Montreal and what lies ahead for the industry in light of recent challenges.
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Canada’s office market is set for its first positive net absorption year since 2019, with six of ten cities showing net positive demand in Q3 2024, led by Toronto.
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CBRE’s Scoring Tech Talent 2024 ranks the top North American tech markets. This year, tech talent growth boosted Toronto back to the #4 spot.
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Patrick Soucy, William Grenon, Maxime Paquet and Maxime St-Pierre now call CBRE home. That’s a game changer for real estate services in Quebec City.
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Canadian office and industrial real estate figures for Q1 2024
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Article
Montreal Outlook 2024
Where is Montreal’s real estate market headed in 2024? CBRE Quebec Managing Director Ruth Fischer tells us what she’s watching for.
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Six real estate projects that are set to make a splash this year.
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Ralf Carcani’s enthusiasm for advising office and lab tenants on real estate strategy and his commitment to making a positive impact on his local Montreal office helped earned him CBRE’s Eastern Canada Emerging Leader Award for 2022.
Stay in the Know
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