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New York City Realtor KAREN KOSTIW

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Karen's Blog Articles

Closing Costs in New York City Unpacked

Closing Costs in New York City Unpacked Buying or selling property in New York City comes with many moving parts—but one of the most critical, often overlooked, elements is closing costs. Whether you’re purchasing a co-op on the Upper East Side, a new development condo in Hudson Yards, or a townhouse in Brooklyn, understanding what goes into closing costs—and how they differ for buyers and Continue Reading

Manhattan Real Estate September 22 | Weekly Market Snapshot

By Karen Kostiw | Coldwell Banker Warburg Manhattan Real Estate September 22 Market Overview The Manhattan real estate snapshot for September 22 highlights a market that continues to balance momentum at attainable price points with resilience in the luxury segment. Activity increased across co-ops and condos, with Midtown and Downtown leading the way in both listings and signed Continue Reading

Weekly Market Snapshot | Manhattan Real Estate | Week of September 15, 2025

By Karen Kostiw | Coldwell Banker Warburg Manhattan Real Estate, September 15 Market Trends The Manhattan real estate snapshot for September 15 highlights a pivotal fall market. Activity picked up across co-ops, condos, and luxury properties. Traditionally one of the busiest seasons of the year, September continues to attract both new listings and active buyers across co-ops, condos, and Continue Reading

What to Do if Your NYC Home Isn’t Selling: Should You Become an Accidental Landlord?

Accidental Landlord NYC — Guide for New Landlords Becoming an accidental landlord in NYC can feel overwhelming. You may have inherited a property, relocated for work, or have chosen to rent out your home temporarily. Whatever the reason, renting property in New York City brings complex legal and financial responsibilities. Understanding these obligations early can help you protect your investment Continue Reading

Navigating New York’s Luxury Real Estate: Strategic Insights for Discerning Clients

  The New York City luxury real estate market is a dynamic ecosystem, characterized by unique opportunities and distinct challenges, for high-net-worth individuals seeking to acquire or divest of exceptional properties. Therefore, a strategic approach is not merely advantageous—it is imperative. My experience, forged on Wall Street and honed through rigorous project management, provides a Continue Reading

Manhattan Market Enters Fall with Renewed Energy

    Manhattan Real Estate Market Weekly Snapshot Week of September 8, 2025 As the summer winds down, Manhattan’s real estate market traditionally pivots into one of its most active seasons. The first two weeks of September often set the tone for the fall cycle, and this year is proving no different. The data from the week of September 8 reveals a market that is both selective and Continue Reading

Manhattan Exclusive Inventory Trends: What Sellers and Buyers Must Know

Special thanks to Junyao Yang on Unsplash   Why Exclusive Inventory is on the Rise   In recent years, the Manhattan real estate market has seen a notable increase in exclusive inventory—listings quietly shared within brokerage networks before reaching the public. This shift has been fueled by tight supply, rising competition, and the desire among some sellers for more control over Continue Reading

NYC Real Estate Fall 2025: Navigating a Market in Waiting

NYC Real Estate Fall 2025: Navigating a Market in Waiting As New York City transitions from the quiet summer months into the bustling fall season, the real estate market is entering a moment of both anticipation and uncertainty. Historically, fall is a compressed yet competitive window for buyers and sellers, with deals concentrated in September and October as everyone rushes to close before the Continue Reading

Mortgage Rates See Their Sharpest Decline in Over a Year

Mortgage Rates See Their Sharpest Decline in Over a Year After months of limited movement, mortgage rates have seen a sharp decline, capturing the attention of buyers and sellers across New York City’s real estate market. On Friday, September 5th, the average 30-year fixed mortgage rate dropped to its lowest level since October 2024—marking the most significant single-day decline in over a Continue Reading

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124 Hudson Street
New York NY, 10013


Karen Kostiw
(917) 524-4152 Cell
(212) 327-9622 Office
(646) 422-4083 Fax

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