What is in an Offer? Before making an offer, check the recent sales prices of comparable homes in the neighborhood to see how the seller's asking price stacks up.All written offers must be presented. The agreement must have a start and end date. Details about adjusting utilities, property taxes and other fees. Your offer needs to have deadlines, and the schedule should be negotiated and laid out in your purchase contract before you make the offer. Before you fill out any paperwork, start saving up for your down payment. Once you find a house in Ohio that you love, it's time to make an offer.