Ask explicitly whether the immigration review covers the placement restrictions, relevant contract terms and actual supervision arrangements. Do not assume a commercial contract review answers the immigration questions.
Budget for the specific evidence review
Separate professional preparation, official charges and business delivery expenses. A higher client fee or longer contract does not establish qualifying specialized knowledge or cure an impermissible placement. Ask explicitly who supervises the employee's daily work and who holds the authority to end the assignment, and request that any contract review specifically flag language suggesting a client, rather than the employer, actually directs that work.
Treat the answer to that control question as more decisive to the filing than the contract's value or duration, since neither a higher fee nor a longer term changes who is actually in charge day to day. Confirm that a general commercial-contract review, if one was already done for business reasons, actually addressed that specific control question rather than assuming it did because contracts were read. Get the answer in writing before the filing relies on it, rather than treating a business-side legal review as automatically covering the immigration question.
Ask the adviser to state plainly whether the existing contract language already answers that control question or whether a short additional clause or side letter would need to be drafted, and price that possible drafting work separately from the broader legal review.