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AI-Native Hanover Park Leases Full Floor at 387 Park Ave. South

A new lease with AI-native fund administrator Hanover Park and the expansion and extension of PMG Worldwide’s existing space have been recent highlights at TF Cornerstone’s 387 Park Ave. South, which has seen more than 100,000 square feet of leasing activity in the past year. The recent transactions follow K Health’s long-term renewal and the expansion of another TAMI user completed in late 2025.

Hanover Park signed a lease for the building’s entire 10th floor, totaling approximately 19,269 square feet. PMG Worldwide renewed its lease on the entire second floor while expanding into the entire third floor, bringing its total footprint to approximately 38,744 square feet.

“We’re pleased to welcome Hanover Park to 387 Park Avenue South and to expand our relationship with PMG Worldwide,” said Joe Lanzilotta, Director, Commercial Asset Management at TF Cornerstone. “The property continues to outperform the market as a destination for growing businesses.”

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About Paul Bubny

Paul Bubny serves as Senior Content Director for Connect Commercial Real Estate, a role to which he brings 16-plus years’ experience covering the commercial real estate industry and 30-plus years in business-to-business journalism. In this capacity, he oversees daily operations while also reporting on both local/regional markets and national trends, covering individual transactions across all property types, as well as delving into broader subject matter. He produces 7-10 daily news stories per day and works with the Connect team and clients to develop longer-form content, ranging from Q&As to thought-leadership pieces. Prior to joining Connect, Paul was Managing Editor for both Real Estate Forum and GlobeSt.com at American Lawyer Media, where he oversaw operations at both publications while also producing daily news and feature-length articles. His tenure in B2B publishing stretches back into the print era, and he has served as Editor in Chief on four national trade publications. Since 1999, Paul has volunteered as the newsletter editor of passenger rail advocacy groups (one national, one local).

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