There is no universal accuracy-study purchase that establishes L-1B knowledge. Identify what the case needs to explain about the employee’s understanding before commissioning a report.
Keep the evidence expense tied to the issue
A commercial model evaluation and an immigration knowledge explanation have different purposes. Separate their costs from current filing charges and avoid suggesting that a more expensive study guarantees eligibility.
Separate appropriate translation and evidence work from professional review and official charges. Ask the adviser to draft the specific sentence the filing needs the study to support before anyone commissions outside work, since a report produced without a defined target question often answers something a reviewer never asked. Check next whether internal data the organization already holds, reviewed by staff who understand it, can answer that same question without paying an outside firm to reproduce the analysis. Where an outside study genuinely adds something internal data cannot, ask for a fixed scope tied to that single question rather than an open-ended engagement, so cost tracks the actual gap rather than general curiosity about the product. Keep translation of any existing material as a separate, smaller line item from the study itself. Ask what it would cost to answer the same question through a shorter internal memo written by staff who already understand the product, before assuming an outside engagement is the only route available. Put any agreed scope and price in writing before work begins, since an open engagement without a defined question tends to expand in cost without ever settling the point it was meant to address.