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Meet Your Team
Rob Rader
David Romero
Rob Rader
949.500.9391
Rob Rader is the Founder and Principal Broker of Topside Real Estate, a leading name among commercial real estate companies in Orange County, with over two decades of experience in the area’s commercial real estate market. Since starting in 2002 while at USC, Rob has closed more than 1,000 transa
949.500.9391
Rob Rader is the Founder and Principal Broker of Topside Real Estate, a leading name among commercial real estate companies in Orange County, with over two decades of experience in the area’s commercial real estate market. Since starting in 2002 while at USC, Rob has closed more than 1,000 transactions—from small leases to multimillion-dollar investment sales. Rob brings strategy, transparency, and perseverance to every deal as an accomplished commercial real estate broker in Orange County. He specializes in value-add office and industrial projects and collaborates with a trusted network to support projects across various asset types. Rob lives in Newport Beach with his wife and son and enjoys sailing and surfing in his free time.
Mac Mace
David Romero
Rob Rader
949.922.9889
Mac Mace is a Director at Topside Real Estate, a leading name among commercial real estate companies in Orange County, with over a decade of experience in office leasing and sales throughout Southern California. Since entering the industry in 2014, he has successfully completed more than 500,000 s
949.922.9889
Mac Mace is a Director at Topside Real Estate, a leading name among commercial real estate companies in Orange County, with over a decade of experience in office leasing and sales throughout Southern California. Since entering the industry in 2014, he has successfully completed more than 500,000 square feet in lease transactions and over $100 million in sales. Mac began his career at Colliers International and most recently served as Vice President at Windwater Real Estate. As a skilled commercial real estate broker in Orange County, he is known for his collaborative approach and sharp execution, focusing on strategic growth and building strong client relationships. Mac resides in Orange County with his wife and kids and enjoys golfing and sailing.
David Romero
David Romero
David Romero
714.322.5294
David Romero is a leading commercial real estate broker in Orange County and serves as a Director at Topside Real Estate, bringing over 20 years of experience in leasing and sales of office and industrial properties across the region. He began his career in 2003 and quickly became a Shareholde
714.322.5294
David Romero is a leading commercial real estate broker in Orange County and serves as a Director at Topside Real Estate, bringing over 20 years of experience in leasing and sales of office and industrial properties across the region. He began his career in 2003 and quickly became a Shareholder at his previous firm by 2007—one of the youngest to achieve this milestone. Renowned for his strategic thinking and relationship-driven approach, David is committed to maximizing outcomes for his clients, making him a standout among commercial real estate companies in Orange County. He combines in-depth market insight with a long-term vision to consistently deliver value. David enjoys hiking, travel and spending quality time with his family.
Our Orange County Advantage
Deep Roots, Local Insight, Real Results
At Topside, Orange County isn’t just our market, it’s our home. Our brokers have spent decades navigating its unique business landscape, from the corporate campuses of Irvine Spectrum to the community-driven hubs of Aliso Viejo and Newport Beach. This deep local knowledge allows us to offer insights beyond the numbers — we understand the pulse of each city, the evolving demand in every corridor, and the lifestyle factors that make certain locations thrive.
Whether it’s pinpointing an office near top dining and retail in Irvine, positioning a property with coastal appeal in Newport, or identifying growth opportunities in South County, our familiarity with the region gives clients a decisive edge. We don’t just transact in Orange County real estate — we live it, study it, and leverage it to help businesses succeed.
