As long as they are contracted for any fee above those disclosed would be subsequent fees and not subject to the disclosures. Now this is not saying that if you know there will be at least 5 inspections you can only disclose one to avoid including the other 4. .17(c) makes it pretty clear you have to disclose based on the known facts at the time.
From .17:
e) Effect of subsequent events. If a disclosure becomes inaccurate because of an event that occurs after the creditor delivers the required disclosures, the inaccuracy is not a violation of this part, although new disclosures may be required under paragraph (f) of this section, §1026.19, §1026.20, or §1026.48(c)(4).
However, reverting back to my comment about poor planning, the construction agreement should spell out the estimated # of inspections and at what stage of the construction they will take place. How disbursement are to be paid should also be spelled out in the agreement.
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The opinions expressed are mine and they are not to be taken as legal advice.