Expert Opinion Letters for U.S. Visa Applications

Get an expert opinion letter (or professional opinion letter) that is USCIS-ready, evidence-driven, and tailored to your visa category.

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Expert Opinion Letters for All Major Visa Categories

We provide tailored opinion letters for:

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H-1B Specialty Occupation

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L-1A Manager / Executive

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L-1B Specialized Knowledge

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O-1 Extraordinary Ability

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EB-1A / EB-1B

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EB-2 / NIW

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P-1 / P-3 Athletes & Entertainers

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How It Works

1

Create your GCS account

2

Upload or mail your supporting documents

3

Complete the application and submit your payment

4

Receive your Expert Opinion Letter

Why Choose GCS for Your Expert Opinion Letter

1

Written by a Qualified Industry Expert or University Professor

We match your case with an expert whose background is relevant to your field, ensuring credibility and alignment with USCIS expectations.

Qualified Expert
Professional Assessment
2

A Detailed, Case-Specific Assessment of Your Qualifications

Our letters connect your experience, achievements, and role to the requirements of your visa category (H-1B, L-1A/B, O-1, EB-1, EB-2/NIW, P visas).

3

Evidence-Based Support That Strengthens Your Petition

Every claim is backed by documentation, metrics, and references from your submitted materials, providing the kind of clarity USCIS officers look for in complex cases.

Evidence-Based Documentation
Structured Arguments
4

Strong, Structured Arguments Built for Approval

Your letter is written to remove doubt, address potential RFE concerns, and articulate why you meet the specific standards of your visa.

3

Fast Delivery & Responsive Communication

Multiple turnaround options and dedicated support ensure you always meet your deadlines, especially for time-sensitive RFEs.

Evidence-Based Documentation

Frequently asked questions

Expert Opinion Letters are completed by professors or distinguished industry authority in order to provide an “Expert Opinion” for extraordinary ability petitions, responding to RFE's, or for any other case that requires the opinion of an expert in the field. It specifically addresses an individual's academic and employment experience qualifications to satisfy U.S. Citizenship and Immigration’s requirements.

Requirements vary depending on the type of visa you are applying for. Please refer to the “Documents Required” section for a detailed information.

Our standard processing is 7 to 9 business days. Rush options are also available are needed for an additional fee.

Our rates vary per visa and letter type. All you need to do is start your application, upload your documents and request for a quote. We will respond to you asap with the quotation on how much the cost will be.

Several factors are considered when applying for a US visa, and not based on the expert opinion letter alone. In such instances that refunds are requested, it will be reviewed accordingly and will be given (if any) at our sole discretion.

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