The exhaustion rule is statutory. Under INA § 203(b)(5)(P), an investor or regional center must appeal an I-526 or regional-center denial administratively to exhaust before a court has jurisdiction — a carve-out that does not apply to EB-1A, EB-1B, NIW, or O-1. In practical terms, an AAO appeal (Form I-290B, within 30 days, 33 if mailed, under 8 C.F.R. § 103.3) usually has to come before, not instead of, a federal suit on the investor petition. Skipping it can forfeit the court challenge.
Once exhausted, an I-526 denial can be challenged in federal district court under the Administrative Procedure Act (5 U.S.C. § 706(2)(A)) as arbitrary, capricious, or not in accordance with law — for example, where the agency misapplied the source-of-funds rules or ignored evidence in the record. Motions to reopen or reconsider under 8 C.F.R. § 103.5 remain available for new facts or legal error before the same office.
The I-829 posture is governed by different rules. The statute sets a 90-day adjudication target for the I-829 (INA § 216A(c)(3)(A)), which is the most reliable mandamus hook in EB-5 practice — where USCIS holds a pending or refiled I-829 past that window, a delay suit is materially stronger than for open-ended adjudications. And when an I-829 denial lands with a Notice to Appear, the termination of conditional residence is reviewed de novo in immigration court, where new evidence is admissible and the government bears the burden to prove the basis for termination. The firm's EB-5 removal page covers that defense in depth.
Delay, not just denial, is a live EB-5 issue. Because I-526/I-526E adjudications cannot be premium-processed and have run years long, mandamus and APA unreasonable-delay suits are a common tool — though the forum matters enormously, and the D.C. Circuit (after Da Costa v. IPO, 80 F.4th 330 (D.C. Cir. 2023)) has been unfavorable to I-526 delay claims while other courts have been more receptive. The firm's mandamus and delay page covers that analysis.