A: To accept your offer, the seller must sign it without making any changes. Unless you have a secure method of electronically signing a document, no.Indicate the dates that the parties actually sign the Offer to Purchase and Contract. A job offer letter isn't a contract. It doesn't require a signature and, as you've experienced, a signature doesn't guarantee a job. Customer: Who should sign an offer letter first? The employer or employee? I'd like to hear comments on how to make my offer more attractive. Even though the candidate may have seemed enthusiastic to accept your verbal offer, their written signature on the formal offer seals the deal. In such cases, my employers had me sign the job offers via VeriSign or Adobe Acrobat.