Track business operating costs separately from official charges and professional preparation. Maintaining real operations is a business and eligibility question, not simply a fee payment.
Clarify the scope of restructuring review
Ask whether the professional estimate includes planned reductions and their effect on the qualifying organization. Spending to retain an address does not establish the required business. Obtain appropriate corporate and immigration advice for the actual changes.
Ask the professional preparing the case, in writing, what the quoted scope covers and what it excludes: whether it includes reviewing the restructuring documents, corresponding with corporate counsel about the qualifying relationship, or responding to a request for evidence. Those are the items that usually arrive as later invoices. Hypothetical example: a company closing a foreign research laboratory pays for lease termination, equipment disposal and severance, then discovers that its immigration adviser needs a further review because the closure changed the facts the transfer plan relied on.
Budget the corporate and the immigration advice as two engagements with two scopes, since a corporate adviser does not consider the immigration consequences unless asked. Keep official charges, translation where records are not in English, and professional preparation as separate lines, and record which entity pays each. Ask as well what happens to the engagement if the plan changes shape before filing, since a restructuring that alters the entities can turn a completed analysis into a starting point.
Agreeing that in advance costs less than negotiating it under time pressure.