First identify what evidence the actual case requires. An outside opinion cannot replace facts about the employee’s knowledge and intended duties.
Clarify the proposed service
Ask what the assessor would evaluate and why it is relevant. Separate optional professional charges from government fees and avoid a guaranteed-outcome claim.
Specialized-knowledge petitions attract requests for evidence more often than the executive category, because the central question is a matter of degree rather than of fact. If training another employee would take substantial time, document the factual basis when relevant rather than presenting a large estimate as legal proof. The employer's filing charge and optional premium processing from the USCIS fee schedule, plus considerable internal technical time preparing and redacting evidence. Clarify whether a quoted engagement includes reviewing confidential material, addressing offsite work arrangements, or responding to later government questions. Split the budget into platform licences, ordinary business deployment, petition expenses, and evidence preparation; none measures specialized knowledge by price. Paying to translate an irrelevant volume does not establish specialized knowledge, and selective rewriting should not replace a faithful translation. The larger costs are usually the preparation of specialized-knowledge evidence and, where a client site is involved, the contractual documentation showing the petitioner controls the work. For costs, identify the internal subject-matter people whose time is needed to explain the knowledge and protect sensitive material.