Copy of the deed to any real property that is the subject of the transaction. Copy of the contract of sale or lease or the agreement documenting the terms of.Identify the parties involved in the transaction. 2. An APA, or Asset Purchase Agreement, is a contract in which a buyer and seller agree to the transfer of ownership for an asset at an agreed price. The Office of the City Register records and maintains New York City real property and certain personal property transfer records, such as mortgage documents. An asset purchase agreement documents the terms of the sale of business assets from a seller to a buyer.