Can mandamus force USCIS to decide my I-130, I-485, or N-400?

2 min read · August 20, 2026

Yes — these are the three most common USCIS forms we sue on, and federal courts have consistently held that adjudication of each is a non-discretionary duty even though the underlying grant is discretionary.

The I-130, I-485, and N-400 are USCIS's three workhorse adjudications — and all three have well-developed mandamus case law.

I-130 — petition for alien relative

USCIS often sits on stand-alone I-130s for U.S. citizen petitioners whose beneficiary lives abroad and is awaiting consular processing. Published processing times routinely exceed 18 months. Courts have held the duty to adjudicate is clear under INA § 204(b) — USCIS shall make a determination after investigating the petition. Mandamus is well-suited here because there is no discretion to delay; the duty is to investigate and decide.

I-485 — adjustment of status

I-485 mandamus is the most common case we file. The duty to adjudicate flows from 8 C.F.R. § 245.2(a)(5)(i). Adjudication is the duty; grant or denial is the discretion. Delay-of-decision mandamus is well-supported in nearly every circuit.

A frequent driver is the administrative-processing hold on security checks. Liu v. Novak, 509 F. Supp. 2d 1 (D.D.C. 2007), and its progeny rejected the government's argument that the duty to adjudicate is suspended during indefinite security checks. The duty continues; what the agency does with the checks is the agency's problem.

N-400 — naturalization

The N-400 has a special statutory hook that the I-130 and I-485 lack — INA § 336(b). If USCIS fails to decide the N-400 within 120 days of the interview, the applicant may file in federal district court for the court to either decide the application itself or remand with instructions. This is not technically mandamus; it is its own statutory action. It is also extremely effective. Many AUSAs settle these within weeks.

Common ground

For all three forms, our mandamus / § 336(b) playbook is the same:

1. Confirm the delay exceeds 2x published processing times (or 120+ days post-interview for N-400).
2. Build the administrative-exhaustion record.
3. File in the district where the plaintiff resides or where USCIS has its office adjudicating the case.
4. Negotiate with the AUSA toward a settled adjudication date.

How we handle this

We treat I-130 / I-485 / N-400 delay cases as a single, repeatable workflow with form-specific complaints already templated. This keeps quality high and fees predictable.