Based on your question I would think that you may need some help along the way. I suggest you have a licensed real estate salesperson assist. You can also try to find out who owns the property and reach out to them. You can find out property ownership by going onto NYC.gov and doing a search on ACRIS. You can click on this link to take you there:
If you need further assistance, I am a licensed real estate salesperson and would be more than happy to help. Feel free to contact me any time. Good luck!
Mitchell S. Feldman
Associate Broker/ Director of Sales
Madison Estates & Properties, Inc.
Office: (718) 645-1665/ Cell: (917) 805-0783