Familiarize yourself with the basics of 1031 exchanges in real estate transactions. Consult our lawyers.After you serve the papers you must fill out an Affidavit of Service and sign it in front of a notary. It is an opportunity for both parents to work out an agreement that can become a court order. The exchange of contracts is when both parties swap and sign the contracts. Step 1: Complete the taxpayer information section. A written agreement between the exchanger and the Qualified Intermediary (QI) defining the transfer of the relinquished property. Reducing the time patients spend filling out paperwork. It is an opportunity for both parents to work out an agreement that can become a court order. How to Become a WCS Member.