Every property even if they look the same and are next door to each other will fetch different prices. Recent home sales in the area, condition, time of year listed, where it is priced, and how and by whom it is marketed all play a roll on the final sales price.
A comparable market analysis will give you a clear look on what people are buying and for how much, and will suggest a sale price. The market will determine the final sales price higher or lower (what someone will actually buy it for).
Any Real Estate Agent with access to the MLS (multiple listings service, which there are different ones for different locations in NYC) can provide you with a CMA. I would personally list it on both the Long Island and Brooklyn MLS, along with newspapers that I have in mind.
Not all Agents are alike, not all real estate companies are alike.
In your case waiting to sell in order to make repairs first MAY hurt you when you are ready to sell. It's a timing issue, it must be listed at the right price and right time for best results. You may find that buyers will pay top dollar "as is", it all depends on your market. Lets say you do make repairs and are ready to sell at the close of summer, the buyer frenzy happened a month or two ago, and now you are left with a smaller pool of potential buyers looking for a good deal...not so good deal for you.
When you work with a solid sales focused real estate company with many agents, using multiple MLS services, advertising in newspapers, providing floor plans, video walk-thru, brochures, professional photography, and a database of thousands of active buyers that will be informed of your property with a click of button, you get the mass number of eyes on your property from day one, which if priced right (CMA or Comparable Market Analysis needed for this) is more likely to create a frenzy of buyer activity within the first week of going live. The highest and best offers are sure to come in.
I can show you the hard facts on paper and provide you a free Comparable Market Analysis of your property along with an action plan from start to finish.
Reach out to me at (347) 342-6130
Fillmore Real Estate
"We Know Brooklyn...50 years and stronger than ever"