First identify the actual knowledge claim. L-1B does not universally require proprietary technology, so a report designed to prove that label may address the wrong question.
Scope the explanation to the evidence
Budget records, appropriate professional review and current filing charges separately. Ask what the proposed report would establish about the applicant’s knowledge and U.S. duties before purchasing it.
As soon as the planner's continuous year is documented and the customer contract or a signed letter of intent exists; allow for adjudication, premium processing if needed, and the possibility of a request for evidence on specialized knowledge. An offsite placement adds a separate evidentiary issue, so the company should budget for a licensed U.S. immigration attorney to document both the specialized knowledge and the petitioner's continuing control rather than relying on a thin initial filing. For an L-1B worker placed primarily at an unaffiliated worksite, the unaffiliated employer cannot principally control and supervise the worker, and the placement cannot be essentially an arrangement to provide labour for hire rather than to use the petitioner’s specialized knowledge.