Additionally, the investor must identify a replacement property within 45 days of selling their original property and complete the exchange within 180 days. You must report the exchange to the IRS on Form 8824.With your final statement, we will send our workbook explaining how to fill out your Form 8824 properly. Step 1: While contemplating the sale of an investment property, contact 1031 Pros. Legal 1031 provides a form to identify property with each set of exchange documentation. A 1031 exchange is a real estate selling tax break. Preparing the required exchange agreement between intermediary and exchanger. If you don't believe us, check it out yourself. We offer business and individual banking services.