I-485 Approved 56 Days After Immigration Mandamus Lawsuit

USCIS delays can leave immigration applicants waiting months or even years without a final decision. When a case has been pending for an unreasonable period, an immigration mandamus lawsuit may provide a way to ask a federal court to require USCIS to take action.

In a recent Relief Law matter involving delayed Form I-485 green card applications, USCIS approved the applications only 56 days after a federal mandamus lawsuit was filed.

This case study explains what happened and what applicants with long-pending USCIS cases should understand about the mandamus process.

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The Problem: Long-Pending I-485 Applications

Our clients filed Form I-485 applications for adjustment of status based on previously granted asylum.

The applications remained pending with USCIS for approximately 19 months without a final decision.

Before filing a federal lawsuit, efforts were made to obtain information about the delayed applications. USCIS confirmed that the cases remained pending but did not provide a definite timeline for when they would be adjudicated.

After reviewing the underlying immigration cases, the length of the delay, and the clients’ prior efforts to obtain action from USCIS, Relief Law determined that filing a federal mandamus action for the USCIS delay was appropriate.

Immigration Mandamus Lawsuit Filed Against USCIS

Relief Law filed a federal mandamus lawsuit in May 2026 seeking adjudication of the delayed I-485 applications.

A mandamus lawsuit does not normally ask a federal judge to approve a green card application.

Instead, the purpose of an immigration mandamus action is generally to ask the federal court to require USCIS or another federal immigration agency to take action on a case that has allegedly been unreasonably delayed.

In other words, the lawsuit seeks a decision, not necessarily an approval.

USCIS Scheduled an I-485 Interview

After the mandamus lawsuit was filed, USCIS scheduled the clients for an adjustment-of-status interview.

The interview took place in July 2026.

USCIS approved the clients’ I-485 applications on the same day as the interview.

Only 56 days passed between the filing of the federal mandamus lawsuit and the approval of the green card applications.

I-485 Mandamus Case Timeline

I-485 Applications Filed
The clients filed their asylum-based adjustment-of-status applications with USCIS.

Approximately 19 Months Pending
The I-485 applications remained pending without a final decision.

May 2026 — Mandamus Lawsuit Filed
Relief Law filed a federal lawsuit challenging the continued USCIS delay.

July 2026 — USCIS Interview
USCIS scheduled and conducted the clients’ adjustment-of-status interview.

Same Day — I-485 Applications Approved
USCIS approved the green card applications following the interview.

Time From Mandamus Filing to I-485 Approval: 56 Days

Does a Mandamus Lawsuit Make USCIS Approve a Case?

No. Filing a mandamus lawsuit does not guarantee that USCIS will approve an immigration application.

The purpose of a mandamus action is generally to obtain agency action when a case has been unreasonably delayed.

After a lawsuit is filed, USCIS may take different actions depending on the case. For example, the agency may:

Schedule an interview;
Issue a Request for Evidence;
Conduct additional background or security review;
Approve the application;
Deny the application; or
Take another substantive step toward adjudication.

For this reason, the underlying immigration case should be carefully reviewed before filing a federal mandamus lawsuit.

When Should You Consider a Mandamus Lawsuit for a USCIS Delay?

There is no single waiting period that automatically makes a USCIS delay unreasonable.

Whether a mandamus lawsuit may be appropriate depends on the circumstances of the individual case, including:

How long the application or petition has been pending;
The type of immigration benefit involved;
USCIS processing history;
Whether USCIS has requested additional evidence;
Whether interviews or security checks remain outstanding;
Prior attempts to obtain information or action from USCIS; and
The strength and potential risks of the underlying immigration case.

Applicants should therefore evaluate both the delay and the underlying immigration matter before initiating federal litigation.

Can You File Mandamus for a Delayed I-485 Green Card Application?

Potentially, yes.

A federal mandamus lawsuit may be considered when an I-485 adjustment-of-status application has remained pending for an unreasonable period without meaningful action.

Mandamus actions may also be considered in certain delayed immigration matters involving naturalization applications, family petitions, asylum-related applications, and other USCIS benefits.

However, every case is different, and filing a lawsuit is not appropriate in every delayed immigration matter.

What This USCIS Mandamus Case Demonstrates

In this case, the clients’ I-485 applications had been pending for approximately 19 months before the federal lawsuit was filed.

USCIS had not provided a meaningful timeframe for adjudication.

After the mandamus lawsuit was filed, USCIS scheduled an adjustment-of-status interview and ultimately approved the I-485 applications.

The entire period from the filing of the federal lawsuit to approval was 56 days.

The result does not mean every mandamus case will proceed on the same timeline. It does demonstrate, however, how federal litigation may be an option for applicants facing prolonged and unexplained USCIS delays.

Speak With an Immigration Mandamus Lawyer About Your USCIS Delay

If your I-485, green card application, naturalization application, family petition, or other USCIS case has been pending for an extended period, a federal mandamus lawsuit may be an option.

Relief Law represents clients in federal immigration mandamus actions involving delayed USCIS cases.

We evaluate the length of the delay, the procedural history of the immigration application, prior efforts to obtain agency action, and potential risks before determining whether federal litigation may be appropriate.

Contact Relief Law to discuss whether an immigration mandamus lawsuit may be appropriate for your delayed USCIS case.