Skipping a real estate agent in NYC saves the 5–6% commission, which on a $700,000 home is $35,000–$42,000. But the agent's job — pricing, marketing, screening buyers, negotiating, and managing the closing — still has to get done.
Two realistic paths: list it yourself (FSBO) on flat-fee MLS services and Zillow, or sell directly to a cash buyer who handles the title work and contract themselves. The first usually nets more if the property is clean and you have time. The second is faster and certain.
What you can't skip: a NY real-estate attorney to handle the contract and closing. Unlike most states, New York closings are attorney-driven, and going without one is the single most common way FSBO sellers get hurt.
Whichever path you choose, knowing the as-is cash value first lets you compare apples to apples. Then list price minus commission, repairs, and carrying costs vs. cash offer is a real decision.