The first requirement for a valid escrow is a written agreement. The form to fill out is available on the official escrow website.Escrow is a thirdparty process that requires the payment of a fee to an independent person or entity that acts as the "escrow agent". Escrow companies can also provide form sales agreements for buyer and seller to use. You'll outline key details like the purchase price, escrow terms, indemnification, and more using clear, concise language to bind both parties.