Typically civil-document retrieval, certified translation, notarization, corporate amendment or reissued certificates, bank re-documentation, and the legal time to decide which route each instrument takes. Ask for these as separate line items rather than one figure, keep business expenses distinct from immigration-preparation fees, and verify current government charges when each step is reached.
Spend where the mismatch actually creates doubt
A former name on a dormant supplier contract may need only an explanation, while the share register and the bank mandate that show who controls the enterprise need clear evidence of identity and authority, through a correction or an accepted explanation as appropriate. Ask counsel to rank the documents by how directly they bear on ownership, control and the funds, and to price that shorter list. Whether a particular professional fee belongs to the business or to case preparation depends on its actual treatment.
Build one schedule of business expenditure — subscription, implementation, integration work, hardware, insurance, marketing — and a separate list of costs to prepare and present the case. For a service business bought as a going concern, the reference point is the purchase price; for a start-up, it is the cost of establishing an operating business of that type.