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With a distinct focus on South Florida’s dense urban markets, the Urban Core Division is a full-service real estate brokerage providing sales and advisory services to owners, investors, and developers.


We differentiate by educating clients on the complete personality and potential of each emerging neighborhood in South Florida, not solely a single product type. This empowers our clients’ decision-making and opens up more opportunity to create, maximize and protect the value of investments.

Driven by our own powerful local neighborhood data and unrivaled industry connections, our team takes tenacity and proven experience to work for you. Utilizing the strength of Colliers’s global integrated platform, we leverage our far-reaching network of 14,000 professionals operating in 68 countries allowing us to position your property for maximum market exposure.

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Executive Vice President

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In 2016, Mika Mattingly launched the Urban Core Division, joining forces with the global platform of Colliers International, to better serve clients with focused attention on urban renewal, off-market sales, and assemblages across core South Florida neighborhoods.


With a strong foundation of building-level market data and a knack for navigating the complexities of urban zoning and approvals, Mika has established herself as the premier real estate expert in the Downtown Miami area. She has been a trailblazer behind the market transformation from a neglected business corridor to a revitalized destination for real estate investing and community.

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Vice President

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As a member of the firm’s Urban Core division, Bradley Arendt brings clarity and advisory to all product types within the dense urban areas contributing to South Florida’s urban renewal. With a specific focus on the urban cores throughout Broward County, Bradley draws upon his 15 years of experience to create brokerage and business development solutions for clients. He has an extensive background in mortgages, real estate investing, property acquisitions, management, and auctions that enables clients to better understand different viewpoints and maximize value.

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Vice President

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Sam Azar is a commercial real estate veteran with 20 years experience.  With both boutique and corporate work he is able to advise clients of varied sizes.  Sam has a diversified aptitude in CRE, but is focused on retail landlord and tenant representation.  Sam is a member of the high producing Urban Core Division led by Mika Mattingly.


Most recently Sam has brokered over 100 leases with QSR, wellness, and hospitality  clients.  Sam is a member of ICSC, past top 40 under 40, board member of Voices for Kids and the Hispanic Chamber of Commerce.  Currently he works with The SEED Food Festival and Stay Fit 305 as a real estate strategist.  Sam is a graduate of The Citadel The Military College of South Carolina. 

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Senior Associate

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As an Associate, Cecilia works directly with the growing Urban Core Division, preparing research and analysis of the team’s niche neighborhood data, including rate trends, zoning, comps and due diligence. She also provides support on a variety of marketing and business development initiatives.

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Jonathan focuses on investment sales based out of the Fort Lauderdale office.
Before joining Colliers, Jonathan was an Associate at Gridline Properties, specializing in the investment sale of Retail, Net lease and Industrial Assets. Jonathan graduated from Nova Southeastern University with a Bachelor's degree in Management.

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Marketing Specialist

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Bringing 20 years of experience in print media and broadcast design to his new role, Jorge previously served as a Graphic Designer at CBRE where he supported top producing brokers in creating marketing materials including property brochures, posters, interactive PDF’s, online campaigns and web marketing, among others, for high-end and luxury commercial real estate properties.

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Research Analyst

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Lia Halakos is a dedicated real estate professional within Colliers Urban Core Division. Her expertise lies in business development, where she skillfully connects potential buyers with new and exciting projects. 

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