Corporate set-up costs that the immigration file depends on: premises, incorporation, banking, insurance, and payroll arrangements. Those are business expenses, but the transfer timeline runs through them. Legal work is also usually heavier for a first case than for later ones drawn from the same corporate evidence.
Sequence the spending against the file
Spending on relocation before the operating evidence exists puts money ahead of the case. A workable order is corporate set-up, then the assessment, then the filing, then relocation commitments. Ask counsel for a scope that separates the one-time corporate evidence work from the per-person work, since the first will be reused if the operation transfers further people later.
Sequence matters more than the total here. Money spent on relocation before the operating evidence exists is money committed to a case nobody has yet assessed. A workable order puts corporate set-up first, then the legal assessment, then the filing, then anything that cannot be undone.
Ask specifically what the assessment covers: whether it includes reviewing the qualifying year abroad, the specialized knowledge claim and the new-operation requirements, or only the last of those. Where the organisation expects to transfer further people later, ask what portion of the corporate evidence work is reusable, since that changes how the first case should be priced across a programme rather than against one transferee.