Article
An I-9 Compliance Checklist for Businesses Engaged in Mergers & Acquisitions
Published: Jun 24, 2025

In the fast-paced world of mergers, acquisitions, asset sales, and private equity transactions, the excitement of growth can overshadow critical compliance details. However, unaddressed I-9 compliance issues in any M&A deal may lead to civil penalties, government inquiries, and workforce disruptions. Therefore, businesses acquiring U.S. operations or workforce segments must assess employment eligibility records, mitigating any risks in the pre-closing process to ensure a smooth transaction.
I-9 compliance, mandated by the Immigration Reform and Control Act (IRCA), refers to the process employers must follow to verify the identity and employment authorization of individuals hired for work in the United States. Immigration-related risks tied to employment eligibility records are real and can derail your post-closing success.
Here is an I-9 compliance checklist for businesses to follow when engaged in M&A deals:
Strategic I-9 Due Diligence: What to Review Pre-Closing
- I-9 Inventory and Accuracy
- Are Form I-9s on file for every employee hired since November 7, 1986?
- Are all forms completed correctly and using the current version?
- Has the seller conducted any internal audits or self-remediation?
- Government Inquiries or Enforcement History
- Has the seller received SSA No-Match letters or notices from ICE, DHS, DOJ, or DOL?
- Are there any pending investigations or prior settlements relating to immigration compliance?
- Status of Foreign National Employees
- Does the target employ workers on temporary visas (e.g., H-2B, H-1B, L-1, TN)?
- Have the required reverifications been completed and documented (via Supplement B)?
- Are public access files for H-1B, E-3, or H-1B1 employees complete and up to date?
- E-Verify Participation
- Is the company enrolled in E-Verify?
- Is participation required under state law or government contracts?
- Has the seller consistently used E-Verify across worksites?
- Subcontractor and Joint Employment Risk
- Does the seller use staffing agencies or subcontractors for any portion of its workforce?
- Are there protocols for verifying compliance downstream?
- Strategize Onboarding
- Will the seller’s workforce be treated as continuous employees?
- Or should employees be treated as new hires with new I-9s completed?
- Contractual Protections: Recommendations for Deal Teams
- Incorporate representations and warranties confirming I-9 and immigration compliance.
- Use a schedule of exceptions to disclose known deficiencies.
- Negotiate indemnities tied to I-9 audit outcomes.
- Consider post-closing certification requirements for workforce integration.
- Documentation Request List: Key Materials to Collect
- Collect current employee roster with visa status, worksite, and status expiration dates.
- Collect all I-9 Forms and retention logs.
- Obtain copies of visa petitions, I-94s, USCIS/DOL correspondence, and SSA mismatch letters, if any.
- Obtain public access files for each H-1B/E-3 employee.
- Provide written policies regarding onboarding, reverification, and recordkeeping.
- Post-Closing Items for Buyers
- Perform an internal audit of inherited I-9s.
- Prioritize technical remediation where employee cooperation is still possible.
- Retain all original forms and document changes made post-closing.
- Centralize and align I-9 and E-Verify policies across legacy and acquired entities.
Conclusion
Ultimately, the excitement of an M&A deal should be matched with the diligence of I-9 compliance. As this checklist demonstrates, neglecting the meticulous review and management of employment eligibility records can turn a promising acquisition into a costly liability.
I-9 errors can reflect systemic recordkeeping failures that can jeopardize closing timelines or expose buyers to future fines or workforce interruption. Early identification and structured remediation are critical – both to protect the acquiring entity and to meet regulator expectations.
By prioritizing early identification and structured remediation of potential I-9 errors – from pre-closing due diligence to post-closing integration – buyers can effectively protect their investment, avoid significant fines, and ensure a seamless workforce transition.
Proactive I-9 compliance isn't just about avoiding penalties; it's about safeguarding the future success and stability of your newly integrated enterprise.
For more information on I-9 compliance, and what every employer should know across any industry, read our previous alert.
About Our Author
Mary Kate Fernandez focuses her practice exclusively on business immigration, representing employers across a range of industries. With experience guiding clients through U.S. immigration regulations, she helps businesses sponsor and retain skilled talent from around the world. She also assists employers in addressing a wide range of employment issues related to immigration and international employment, ensuring they remain compliant with regulations. Fernandez has established contacts and experience liaising with the Department of Labor (DOL), U.S. Citizenship and Immigration Services (USCIS), U.S. Coast Guard (USCG), Department of State (DOS), and U.S. consulates worldwide. This network enables her to guide clients effectively through regulatory requirements across different jurisdictions.