The 45-day identification window starts on the day the relinquished property closes, and it does not pause for a slow property search. Every candidate has to be described in writing and delivered to the qualified intermediary before midnight on day 45, with no extensions for holidays, weekends, or a deal that fell through in week six. In a market moving as fast as Nashville's, where multifamily and healthcare-anchored assets can go under contract within days, waiting until the sale closes to start looking is how investors end up naming properties out of pressure instead of judgment.
Starting The Search Before The Clock Begins
Nothing prevents an investor from touring properties, reviewing rent rolls, and narrowing a shortlist while the START EXCHANGE REVIEW is still under contract. That head start is the single biggest factor in whether identification day 45 feels controlled or frantic. We build the shortlist against the expected sale price and likely debt replacement need well before closing, so the investor walks into day one with real candidates rather than a blank search.
This matters more in submarkets where inventory turns quickly. A Green Hills medical office or a Mount Juliet retail pad can go under contract with another buyer while an investor is still waiting for their own sale to close, so pre-identifying backups protects against losing a top choice to someone else's timeline.
Writing Identification That Actually Holds Up
The IRS requires an unambiguous description of each identified property, typically a legal description or street address, delivered in writing to the qualified intermediary before the deadline. A verbal mention to a broker or an email discussing possibilities does not count. We draft identification language early and confirm delivery with the QI directly rather than assuming a forwarded email satisfies the requirement.
- Confirm the legal description or address matches title records exactly
- Deliver identification directly to the QI rather than only to a broker or attorney
- Choose the three-property, 200%, or 95% rule before drafting the list
- Keep a dated copy of everything sent, in case delivery timing is questioned later
Building A Real List, Not A Padded One
An identification list padded with unlikely candidates does not add safety; it adds confusion. If the plan is a single replacement purchase, the three-property rule usually covers it cleanly. If the investor is comparing a Franklin office building against a Brentwood industrial site and a DST allocation, that is exactly the kind of spread the 200% rule was built for. Choosing the right rule before drafting the list keeps the exchange simple instead of layering unnecessary risk onto it.
Medical office space tied to the region's hospital and outpatient network deserves its own mention here, since HCA Healthcare's corporate presence and the broader TriStar and Vanderbilt-affiliated systems have pulled physician groups into leased space across Nashville at a pace that outstrips a lot of general office demand. A cardiology or orthopedic group relocating out of an aging Belle Meade building can move on a lease decision faster than a typical office tenant, and that speed shows up on the identification list as competition an investor needs to plan for rather than discover mid-search.
What Happens After Day 45 Closes
Once identification is filed, the list is locked except for the narrow revocation rules that allow changes only before the deadline itself. From that point, the remaining days of the 180-day period go entirely to due diligence, financing, and closing on whatever survived the identification list. That is why the search discipline in the first 45 days matters so much: everything after it depends on the quality of the decisions made before the clock ran out.
Common Mistakes That Show Up In Middle Tennessee Exchanges
The most frequent error we see is an investor identifying a property based on a verbal conversation with a broker, assuming that counts as identification because the QI was copied on an email chain somewhere. It does not. Another common mistake is waiting until day 40 to start seriously touring properties in submarkets like Spring Hill or Lebanon, where inventory can be thinner than in Davidson County itself, leaving too little time to compare real alternatives.
A third pattern involves investors who identify a single property under the three-property rule, treat it as a sure thing, and skip backups entirely. When that property's financing falls through in week ten, there is no fallback left on the list, and the exchange fails outright rather than shifting to a second option. Building at least one realistic backup into every identification list protects against exactly this scenario.
Common 1031 Exchange Questions
Can identification be changed after it is submitted to the QI?
Yes, but only before the 45-day deadline passes. Once day 45 ends, the identification list is final regardless of whether a named property later falls through.
Does a signed letter of intent count as identification?
No. Identification must be a written, unambiguous description delivered to the qualified intermediary, not a letter of intent, verbal agreement, or a contract with a third party.
What if no property is under contract by day 45?
The investor can still identify a property that is not yet under contract, as long as the description is specific enough to satisfy the requirement, but acquisition still has to happen within the 180-day period.
How early should property touring start before a Nashville sale closes?
As early as the sale is reasonably certain to close. Touring and preliminary diligence during the relinquished property's due diligence period gives the investor a working shortlist instead of a cold start on day one.
Can a DST be added to the identification list alongside a direct purchase?
Yes. DST interests can be identified alongside direct property purchases, which is common when an investor wants a backup option that closes on a predictable timeline.