I want to write a letter that is compelling. My realtor says he's not allowed to attach letters to offers because he can lose his license.What Items Are Required to Submit an Offer? Mention what you liked in the property and why you liked the property. Focus on three things: State your intentions, show that you have the financial means to make the purchase and make a personal appeal to the seller. The written offer will include your contact information, how much you are offering for the property, and how much you are putting down. Making an offer on an apartment in NYC can be nervewracking but it doesn't need to be! Make sure to sign and date the second page. Complete the offer letter included in this packet with the details of your offer. Think of earnest money as a deposit.