Zillow New York pet-friendly page with over 18,000 pet-friendly listings with fair rental price estimates.
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Trulia New York apartments page with over 14,000 listings in Manhattan alone with pet-friendly filters and in-depth neighborhood information.
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Hotpads New York apartments page with over 29,000 listings with pet-friendly filters and in-depth photos, information, as well as unique features such as street view.