Ask which interviews, document review and preparation tasks are included. Company staff time, translation and professional services may be separate considerations; obtain clear scope rather than assuming one package includes everything.
Clarify responsibility for explanations
The company must supply accurate facts about its systems and the employee’s work. Discuss who will verify technical statements before they appear in a submission. Name that verifier at the start and give the role a budget in hours rather than in dollars, because the cost that surprises companies here is engineering time, not professional fees.
Someone who understands the system has to read every technical sentence and confirm it, and that person is usually committed to delivery work. Ask the adviser how many rounds of review the quote assumes, and what happens if a technical statement has to be rewritten after the file is drafted. Translation is a separate line where records exist in another language, and it should be quoted per document rather than as a package.
Finally, agree who pays for a second opinion if the company and the adviser disagree about how much detail is required, since that disagreement is common and is easier to resolve when the cost of resolving it has already been allocated. Put the allocation in the engagement letter rather than in an email thread.