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Meet John Gantkowski

John Gantkowski is a highly trusted Pennsylvania real estate expert who helps buyers and sellers navigate the market with confidence. Whether representing your interests in a suburban neighborhood or a fast-developing investment area, John provides data-driven pricing strategy, negotiation skills, and local insight to get results for you across PA.

Whether you are relocating, selling your home, or looking for a property, you will receive clear guidance, quick communication, and a proven process designed to maximize values in today’s Pennsylvania housing market.

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Why List with Me

Over 56 Million
Sold
Top 1% Berks
County
#1 agent at Iron
Valley Berks
282 Satisfied clients
and counting
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Latest News

The largest U.S. mortgage lenders retained significant market share in 2025, with the top 10 institutions accounting for roughly 23.5% of all originations.

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Suppressed pre-marketing data can make homes appear to sell faster and higher, influencing comps, appraisals, and AVM inputs.

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Tradeweb is looking to expand its footprint into the residential private credit sector. But it didn't have to build from scratch since it found a partner: Maxex.

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