An L-1 expert opinion letter is a formal letter written by a recognized industry or academic expert to support a U.S. L-1 visa petition—typically for L-1B (Specialized Knowledge) or L-1A (Executive/Managerial) visa categories.
This letter provides an independent third-party analysis to validate that the foreign national meets USCIS criteria for the role and visa classification.
When Is It Needed?
With the L-1 intra company transfer petitions and when responding to the RFE’s.
- L-1B (Specialized Knowledge): To demonstrate that the foreign employee possesses proprietary, technical, or unique knowledge of the company’s product, service, or processes.
L-1A (Executive/Managerial): To support that the employee is functioning at an executive level (strategic decisions, supervision, authority) or as a high-level manager.

What is an L-1 Expert Opinion Letter?

It’s a document that:
- Explains and supports the petitioner’s claims (about the role, the company, and the beneficiary’s qualifications)
- Establishes the beneficiary’s experience in a specialized knowledge area (for L-1B) or executive/managerial role (for L-1A)
- It is authored by an independent expert, usually a university professor, industry leader, or executive in a relevant field
- Can be used to strengthen a petition or respond to an RFE (Request for Evidence) from USCIS
What It Typically Includes

- Detailed job description (past and current roles)
- Explanation of the company’s operations
- Assessment of the employee’s qualifications and experience
- Justification of why the role qualifies as:
- Specialized Knowledge (for L-1B), or
- Executive/Managerial (for L-1A)
- Comparison with industry norms to show the role is beyond ordinary
Who Can Issue the Letter?
- University professors in a relevant academic field
- Industry experts with credentials and experience

Documents Required for L-1A & L-1B Expert Opinion Letters

- All education credentials
- Detailed resume of the beneficiary
- Job description (foreign and U.S. role)
- Organizational chart (especially for L-1A)
- Company background
- Work experience letters
- Petition support letter
- L-1 Business plan
- RFE (if received from USCIS)
- Certified English translations if the documents are in foreign language – We can help translate your documents or you can get them translated yourself before submitting to us.
Payment methods:
Payments can be made using one of the following (Zelle or ACH are Preferred):
Zelle: accounts@aaeevaluations.com
ACH to our bank account:
BANK OF AMERICA
Account Name: AAE EVALUATION
Account No. 4350 6003 3750
ACH Routing No. 051000017
Credit card authorization: Fill out the attached CC form and authorize us.
Note: We do not accept checks.

Unleash Your Academic Success Today
FAQ
Quick QuestionS
1. What is an L-1 Expert Opinion Letter?
A formal document prepared by a qualified expert providing an independent evaluation on:
- The employee’s specialized knowledge (L-1B).
- The employee’s executive or managerial capacity (L-1A).
- How the role meets the L-1 visa requirements.
2. When is an Expert Opinion Letter required for L-1 cases?
- When USCIS issues an RFE challenging the petition.
- When the case involves complex job duties or unfamiliar industries.
- When the petition lacks clear evidence of the specialized knowledge or managerial/executive level duties.
3. Who can issue an L-1 Expert Opinion Letter?
Independent, recognized industry experts, academicians, or consultants with no direct ties to the petitioner or beneficiary.
4. Is an Expert Opinion Letter required for every L-1 petition?
No, but it is highly recommended for:
- L-1B cases where specialized knowledge is hard to explain.
- L-1A cases where the managerial or executive role is ambiguous or hybrid.
5. What should an L-1B Expert Opinion Letter address?
- The unique or proprietary nature of the company’s processes, methods, or products.
- The employee’s specific knowledge of these processes.
- How such knowledge is not easily found in the labor market.
6. What should an L-1A Expert Opinion Letter address?
- • Detailed explanation of the employee’s duties as executive or manager.
- Organizational structure, highlighting the employee’s authority.
- Management of personnel, functions, or departments.
7. What are the qualifications of an expert issuing the letter?
- Advanced degrees (e.g., Ph.D., DBA (Doctor of Business Adminstration).
- Extensive industry or academic experience.
- Recognized authority (publications, speaking engagements, awards).
8. Does USCIS require an interview between the expert and the employee?
No, but the expert should have access to detailed job descriptions, org charts, and project documentation.
9. What documents should be provided to the expert?
- Employee’s resume.
- Detailed job description.
- Organizational charts.
- Company product or process documentation.
- Past projects or achievements.
10. How long does it take to obtain an Expert Opinion Letter?
- Standard: 6-7 business days.
- Expedited: 24-48 hours, depending on the provider.
11. What’s the difference between an Expert Opinion Letter and a Support Letter from the employer?
An Expert Opinion Letter is independent, while the Support Letter is issued by the employer as part of the petition package.
12. Does USCIS always accept Expert Opinion Letters?
No, they review them critically and may reject letters that are vague, lack authority, or fail to specifically address USCIS concerns.
13. Can the same letter address both L-1A and L-1B requirements?
No, these are distinct categories with different standards, requiring separate evaluations.
14. What are common reasons USCIS challenges L-1B petitions?
- Job duties appear too general.
- Specialized knowledge is not well-documented.
- The knowledge is common in the industry.
15. What are common reasons USCIS challenges L-1A petitions?
- The employee is more of a supervisor than an executive/manager.
- Lack of sufficient subordinate staff.
- The employee performs day-to-day operations.
16. Is an Expert Opinion Letter sufficient to overcome an RFE?
Often, no. It should be combined with company documentation, org charts, and support letters.
17. Is it better to include the Expert Opinion Letter in the initial filing or wait for an RFE?
For complex cases, proactively including the letter can reduce the chance of an RFE.
18. What happens if the letter uses generic or templated language?
USCIS may disregard it, especially if it fails to connect to the specific facts of the case.
19. Are Expert Opinion Letters used only for USCIS?
No, they can also support Consular processing interviews, CBP reviews, and AAO appeals.
20. Can an Expert Opinion Letter be used in other visa categories?
Yes, they are also common in H-1B, O-1, EB-1, EB-2 NIW, and EB-3 petitions.
HOW IT WORKS
Our Process
Step 1: Initial Consultation
We begin by understanding your goals for immigration, study, or employment abroad. In this consultation, we review your academic background, career plans, and the specific requirements of the destination country or institution.
Step 2: Document Collection and Review
We guide you in gathering the necessary educational documents, such as transcripts, diplomas, and certificates. Our team carefully reviews each item to ensure they meet international standards and are ready for evaluation.
Step 3: Evaluation and Verification
We assess your academic credentials according to the guidelines of relevant evaluation bodies or immigration authorities. This includes verifying authenticity, determining equivalency, and aligning your qualifications with international education systems.
Step 4: Report Issuance and Support
Once the evaluation is complete, we issue a detailed report that can be used for visa applications, job placements, or university admissions. We also provide support if any additional documentation or clarification is required by foreign agencies.
TESTIMONIAL
Our Review
