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George Kotrogiannis and Blake Shaffer with JLL Handle 214 Transactions, Generating Over $2 Billion in Sales Volume

Company: 

JLL

Sales Total

$2.1 billion

JLL’s George Kotrogiannis (Senior Managing Director) and Blake Shaffer (Senior Director) lead a team that offers strategies tailored to multi-market clients across all asset classes. In 2025, the group closed 214 transactions for $2.1 billion.

One major transaction involved successfully executing a landmark $850-million portfolio sale for AT&T, comprising 74 telecommunications central office buildings across 23 states. The portfolio encompassed over 13.6 million square feet with more than 50% vacancy.

These are some of the reasons we selected George Kotrogiannis and Blake Shaffer as Connect CRE’s National Top Broker Award winners for 2026. These awards recognize industry professionals who have demonstrated the highest standards and transaction volumes in investment sales and leasing.

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Inside The Story

JLL's George KotrogiannisJLL's Blake Shaffer

About Amy Wolff Sorter

I love content. I love writing it, visualizing it, and manipulating it to fit into different formats. I have years of experience in working with content, both as creator and editor. The content I create and edit provides assistance with many goals, ranging from lead generation, to developing street cred through well-timed thought-leadership pieces. Content skills include, but aren't limited to, articles and blogs, e-mails, promotional collateral, infographics, e-books and white papers, website copy and more.