In this article we will discuss the specific items you need to prepare in order to submit an offer on a property here in NYC. Download a sample REBNY Submit Offer Form for NYC in PDF or Excel Format.Learn how to submit a real estate offer on a condo, coop or house in NYC. In order to make an offer in NYC, you'll need two documents. The first is proof that you can actually purchase the apartment. Use our Submit Offer Form calculator below to enter your offer terms, including purchase price, percentage down, and any contingencies. The most widely used business letter formats are full block and modified block. The primary letter we use to request information about a return is Form DTF948 or DTF948O, Request for Information (RFI).