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DST library · Due diligence reports

Third-Party DST Due Diligence Reports: Who Writes Them and How to Use Them

DST due diligence has two layers: property reports such as appraisals and Phase I studies, and offering reviews written for broker-dealers. Know who paid.

By Breakwater Exchange · Reviewed by our 1031 advisory team · Last reviewed

The short answer

Two kinds of third-party report sit behind a DST. Property reports, such as the appraisal, the property condition assessment and the Phase I environmental site assessment, are commissioned for the purchase and the loan and describe the building. Offering reviews are written by independent analysts for the broker-dealers who sell the offering and assess the sponsor, structure, fees and projections. FINRA lets broker-dealers use both but says they must weigh the writer's independence, incentives and qualifications, especially when the issuer hired them, and cannot treat a report as a substitute for their own investigation. Ask who commissioned and paid for each report, when it was written, and what it flagged.

At a glance

Property reportsAppraisal, property condition assessment and Phase I environmental site assessment, offered to approved investors in one filed package
Phase I standardASTM E1527-21 under EPA's all appropriate inquiries rule, conducted within one year before acquisition
Offering reviewsWritten for broker-dealers on the sponsor, structure, fees and projections
FINRA's testReview third-party work with reasonable care, considering independence, incentives and qualifications
Issuer-hired reportsFINRA singles them out for particular care
Who paysIn one filed agreement, a dealer fee paid from the investor's price covers selling dealers' due diligence efforts
What a report is notA guaranty, a rating or a substitute for the selling firm's own investigation

Property reports describe the building, and you can ask for them before you close

A DST purchase agreement filed as an exhibit to a REIT's Form 10-Q tells approved investors that, on request, the sponsor will send the loan documents, third-party reports (appraisals, property condition assessments and Phase I environmental site assessments), title policies and surveys, and the trust agreement. These are written by appraisers, engineers and environmental consultants retained for the acquisition and the lender, not for you, but they are the closest thing to an independent look at the asset.

The environmental report follows a federal standard. EPA's all appropriate inquiries rule recognizes ASTM E1527-21 for Phase I assessments under 40 CFR 312.11, and 40 CFR 312.20 requires the inquiry within one year before acquisition, with certain components updated within 180 days. Check the report date against the trust's purchase date, and read the findings and recommendations, not just the conclusion. Environmental and insurance exposure is covered at DST environmental and insurance risk.

For the appraisal, compare the value with the price the trust paid and the price built into your interest; a sponsor mark-up shows up as the gap. The OCC's commercial real estate handbook explains the income approach appraisers use, so you can see which cap rate and NOI produced the number.

Offering reviews are written for the broker-dealers who sell the DST, and FINRA tells them how much to rely on one

FINRA's Regulatory Notice 23-08 says members often rely on information from a third party hired by the member or the issuer, and that appraisers, attorneys and due diligence experts can provide valuable help. It adds that the member should review that information with reasonable care, considering the independence, incentives and qualifications of the third party, particularly when the issuer hired it. Where a report has inconsistencies or does not address a concern, the member should get a fuller explanation or research the issue itself.

Regulatory Notice 10-22 sets the same limit from the other side: a firm may retain counsel or experts, must review their qualifications and competence, must address any gaps in their work, and the use of experts does not necessarily complete its investigation. A firm that is merely in the selling group may rely on a syndicate manager's investigation only if it has reason to believe the manager was expert, conflict-free and actually did the work.

A REIT whose affiliated dealer manager also sells its DST program puts the investor's stake plainly in its registration statement: the dealer manager will not make an independent due diligence review of the kind an unaffiliated underwriter would, so if your broker-dealer does not, you do not have the benefit of one. The same logic applies to any affiliated distribution.

Follow the money: in the filed documents, due diligence is paid for out of the offering, which is why independence matters

A 2024 placement agent agreement for a DST pays selling dealers a dealer fee of up to 1.25 percent of the cash purchase price for coordinating marketing and for non-itemized, non-invoiced due diligence efforts. Those fees are part of the price investors pay, so investors fund the diligence even though it is done for the selling firms.

That is not a reason to ignore a report; it is a reason to ask who engaged the writer, who paid, and whether the writer has reviewed the same sponsor's earlier offerings. FINRA's focus on issuer-hired third parties is a prompt to ask the same question. The broader sponsor review is at how to evaluate DST sponsors.

Use a report as a list of questions, not as an answer

FINRA cites an enforcement action against a member that relied on a third-party diligence report containing no independent assessment or substantive analysis of the issuer. A report that restates the memorandum adds nothing. Ask your representative what their firm's own review changed or added, and pair the answers with the DST offering due-diligence checklist and judging a DST sponsor's financial strength.

No report removes the risks of the investment. A favorable review is an opinion as of a date about a private, illiquid security whose income can fall or stop.

  • Date and scope: when was it written, and does it cover this offering's final loan terms and price?
  • Re-underwriting: did the writer rebuild the pro forma, or summarize the sponsor's? See how to read a DST pro forma.
  • Sponsor history: did it compare prior programs' projected and actual results, including weak ones? FINRA warns against cherry-picked past performance.
  • Related-party payments: does it list every fee to the sponsor and affiliates and the conflicts they create?
  • Red flags and responses: what did it flag, and how did the sponsor and the selling firm resolve each item?
  • Property reports: do the appraisal, condition and environmental findings match what the memorandum says?

Related questions

Can I read the offering's due diligence report?

Offering reviews are written for broker-dealers and are not public filings, so access depends on the selling firm. Property reports are different: one filed package offers them to approved investors on request.

Does a third-party report mean the DST is safe?

No. It is an opinion on the offering as of its date, and FINRA says selling firms must still do their own investigation and weigh the writer's independence and incentives.

Who pays for due diligence on a DST?

In the filed placement agreement reviewed here, the offering pays: selling dealers receive a fee of up to 1.25 percent of the cash price that covers marketing and due diligence efforts, and that fee is inside the investor's price.

How old can a Phase I environmental report be?

EPA's all appropriate inquiries rule requires the inquiry within one year before acquisition, with some components updated within 180 days. A report older than that was not prepared for this purchase.

What if my broker-dealer only relied on the sponsor's materials?

FINRA says a firm may not rely blindly on the issuer and must address red flags itself. Ask what independent work was done and get the answer in writing.

Sources

Checked against these publications on September 30, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.

  1. Purchase Agreement for DST Interests, Exhibit 10.5 to a REIT's Form 10-Q (SEC EDGAR, 2015)
  2. 40 CFR 312.11, reference standard practices for all appropriate inquiries (Cornell LII)
  3. 40 CFR 312.20, all appropriate inquiries (Cornell LII)
  4. OCC, Comptroller's Handbook: Commercial Real Estate Lending, version 2.0
  5. FINRA Regulatory Notice 23-08, Private Placements
  6. FINRA Regulatory Notice 10-22, Obligations of Broker-Dealers Conducting Reasonable Investigations in Regulation D Offerings
  7. Form S-11 registration statement of a non-traded REIT with a DST program, November 2021 (SEC EDGAR)
  8. Form of DST Placement Agent Agreement, Exhibit 10.2 to a REIT's Form 10-Q (SEC EDGAR, 2024)

Ask what the diligence found

Tell us which offering you are considering and we will walk through the property reports and the questions a selling firm's review should have answered.

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