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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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Valley Berks
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Inventory rose to 743,006, new listings hit 77,919 and pending sales rose to 73,241 as rates neared 6.25%.
Mortgage still repeats old habits, chasing top producers, designing for internal teams, and lagging AI, despite new data and tools.
Keller Williams led 2025 with 837,323 sides and $383.086B, while Sotheby’s posted $140.316B volume, per RealTrends data.
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