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Congress Executive Center, a Medical and Professional office building in Boynton Beach, sells for $11 million.

Colliers South Florida Investment Services Team represented the seller in the transaction.

BOYNTON BEACH, FLMay 11, 2022 –An Atlanta and South African-based buyer, OrbVest US, Inc., recently closed on Congress Executive Center, a 4-story medical and professional building located at 1301 N. Congress Avenue in Boynton Beach, FL. The property, which was 100 % occupied, closed on May 12, 2022 for $11 million.

Executive Managing Director Mark M. Rubin, Director Bastian Laggerbauer, and Financial Analyst Jake Stauber of Colliers’ South Florida Investment Services Team represented the seller, Triple Double Real Estate (Andrew “Avi” Greenbaum and Jeremy B. Becker) in the transaction. Andy Belew of Consilium Capital Partners represented the buyer.

“The trade of Congress Executive Center represents a 75% increase in value from its previous purchase price, less than one year ago. This sale is indicative of the strong demand for stabilized medical office properties with solid fundamentals, sound in-place tenancy and investor confidence in the Boynton Beach submarket,” said Rubin.


The 40,210-square-foot, 4-story, medical and professional office is located on nearly 2 acres, adjacent to the Boynton Beach Mall, which has plans for a major redevelopment. With plans for abundant shopping, dining, and entertainment across the street, Congress Executive Center stands out as one of the most strategically located medical and professional office buildings in the area.

“Congress Executive Center is a great addition to the buyer's current and impressive portfolio of healthcare real estate,” said Laggerbauer. “The Seller was able to increase the property’s value significantly by attracting strong medical tenancy to the asset and achieving a 100% occupancy rate”.

The office investment market in South Florida broke records in 2021, despite uncertainties surrounding the coronavirus pandemic and return to the office delays. South Florida’s strong demand drivers like, declining unemployment, population growth, and confidence in the economy are creating an imbalance in supply and demand. Including Boynton Beach, there is limited supply of quality product with competitive buyers driving the price up; sales price per square foot increased 19 percent year-over-year, ending in 2021 at $285. Boynton Beach, amongst the rest of South Florida, is expected to see another strong year for office investment. However, high demand and limited supply will likely remain imbalanced.

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Mark M. Rubin

Executive Managing Director

Boca Raton

I am an Executive Managing Director at Colliers International and senior member of the South Florida Investment Services Team primarily focused on the sales and leasing of commercial properties in South Florida.  For over 30 years I have successfully worked with clients to meet their commercial real estate needs. Whether buying, selling, leasing or financing real estate assets, I am consultative and client-centric, creatively structuring transactions and strategies to meet my client’s investment objectives. With involvement in over $3 billion of transactions across all asset classes, I have worked with investors of all types including institutional investors, high net worth private clients, developers and financial institutions in South Florida.

Prior to joining Colliers, I  served as a Principal of Avison Young and member of its Florida Capital Markets team. Prior to that, I  held senior leadership positions with Newmark Knight Frank, Amerivest Group, Savills Studley and JLL.

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Bastian Laggerbauer


West Palm Beach

As a Director, my focus is primarily on investment sales and providing the highest level of service to my clients throughout the South Florida region. I am proficient in valuating assets of all property types and implementing financial analysis through Argus Enterprise and Excel. During my tenure at Colliers international, I have been involved in deals exceeding a combined value of $350 Million. I have also engaged in select landlord representation, which has only enhanced my experience and ability to fully valuate and transact both income-producing and distressed assets.

My professional accomplishments include researching and analyzing historic and current data for the retail, office and industrial sectors in each submarket and creating individual, detailed reports for all three sectors in the tri-county area of South Florida.  I also earned my Argus Enterprise certification to further enhance my skills, while earning my Bachelor’s Degree in International Business from Northwood University in 2015 and my Master of Science in International Real Estate from Florida International University in 2016. 

I was born in Munich, Germany, where I have family ties to Colliers International. My family founded the Munich office and I subsequently completed an internship before moving to the USA. My time in the Munich office only made me eager to further my experience in the industry and drove my decision to move to Florida to pursue my degrees, while working in the Palm Beach Gardens office. 

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Jake Stauber

Associate | Financial Analyst

Boca Raton

As the Financial Analyst on the Colliers | South Florida Investment Services Team, I focus on the financial analysis, underwriting and preparation of marketing materials for the sales and leasing of investment properties in the South Florida market. I use my extensive comparative market knowledge to help in canvassing the market for qualified buyers.

Prior to joining Colliers, I successfully earned my Bachelor’s Degree in Real Estate from The Florida State University in 2018. Upon graduating, I began my career with CBRE as a Research Analyst in Jacksonville, FL, where I was responsible for the local Office and Industrial market. Concluding my time in North Florida, I was relocated to CBRE’s Miami office, where I was the local research lead for the Miami-Dade, Broward and Palm Beach County Industrial markets. (± 380.0 million square feet).

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