A 1031 exchange lives or dies on paperwork that has to exist in the right form at the right time. An El Paso investor can have a strong START EXCHANGE REVIEW and a solid replacement property lined up and still lose the exchange because an assignment wasn't signed before closing, or a notice to the buyer wasn't delivered when it should have been.
At minimum, a forward exchange needs an exchange agreement with the qualified intermediary, an assignment of the relinquished property contract to the QI, written notice of that assignment to the buyer, a parallel assignment of the replacement property contract, and notice to that seller. For exchanges involving industrial or multifamily properties with existing financing, additional documentation around loan assumption or new debt often has to be coordinated alongside the exchange paperwork rather than after it.
These documents aren't independent forms filled out whenever convenient, they have to exist in sequence relative to closing. The assignment and notice for the relinquished property generally need to be in place before that closing happens, not after. Waiting until the week of closing to start assembling exchange paperwork with the QI is one of the more common ways an otherwise well-planned El Paso exchange runs into an avoidable problem.
Beyond closing, a complete exchange file matters again at tax time and in the event of any later review. An investor should keep the exchange agreement, both assignments, both notices, the identification notice, and both closing statements together in one file, not scattered across email threads with the title company, the QI, and the lender. Assembling that file as the transaction happens, rather than reconstructing it afterward, is far less work and far more reliable.
An El Paso exchange typically involves the QI, two title companies, one or two lenders, and sometimes an attorney reviewing lease assignments on a multifamily or industrial property with existing tenants. Each party generates its own paperwork on its own schedule, and none of them is responsible for making sure the full exchange file is complete, that's a gap the investor or their transaction coordinator has to fill deliberately.
A simple practice that prevents most gaps is confirming, at each closing, that the signed assignment and notice documents tied to that specific closing are in hand before funds disburse, rather than assuming they'll show up afterward in a follow-up email from the title company.
Version control matters too on a transaction with this many moving pieces. It's common for an assignment or notice to go through a revision after a lender comment or a last-minute change to purchase price, and an investor's file should hold the final executed version of each document, not an earlier draft that was superseded before signing. A quick document checklist reviewed the day before each closing, confirming every required exchange document is the current signed version and accounted for, catches most gaps before they become a problem rather than after funds have already moved.