from my former broker days, the date at the top of the agreement of sale is the date the offer to purchase was made (it's not a contract yet). the last signature date by both parties is the date of a legal binding 'contract'. read some basic contract law. when you analyze the contract you should state the date the offer was made in that block. the last signature date of all the parties involved, at the end, is the date of the contract that goes on a different line, it being the 'date of contract' line. the reason to know both is in case there has been a long time period between the offer date and contract date. why do you think there are 2 different areas for dates? this is basic contract law, you dopes.