Replacement difficulty or cost is not the complete legal test. Explain the individual’s actual knowledge and proposed work.
Use commercial context without substituting it for evidence
Identify the experience and assignment supporting this applicant. Government and professional preparation expenses remain separate from the company’s staffing alternatives.
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. The larger cost in an L-1B is professional time spent turning a control-system change log and internal design notes into an explanation an adjudicator without engineering training can follow, which is where most specialized-knowledge petitions succeed or fail. The substantial costs are internal: producing and organizing the proprietary documentation that proves specialized knowledge, reviewing the customer contract, and counsel's time responding to a request for evidence, which this classification attracts more often than others. If the beneficiary will be stationed primarily at an unaffiliated company’s site, that unaffiliated employer cannot principally control and supervise the beneficiary, and the placement cannot be essentially an arrangement to provide labour for hire rather than to use the petitioner’s specialized knowledge.