What this file should establish
Identify missing books, schedules, invoices and ownership records. Ask who reconstructs the file, what alternatives are acceptable and how uncertainty is documented. A fixed fee does not guarantee that incomplete inputs support a conclusion.
Compare the analysis, written deliverables, implementation and follow-up actually included in the proposal.
A situation to work through
One quote includes a written plan while another includes meetings only.
For this situation, start with entity list. Identify the period and legal owner before combining it with the other records. Keep the original source and explain any adjustments in a separate reconciliation.
Review point
Ask for a scope bridge rather than treating the fee as an equivalent-service comparison.
The provider quotes from preliminary figures without defining missing-record work.
Question for the reviewer
Which missing records change the scope, cost or ability to complete the analysis?
Expected handoff
A source-gap and reconstruction scope file.
Separate facts supported by documents from estimates and unresolved assumptions. Assign each missing item to a responsible person and a date. Send the reconciliation alongside the source references so the reviewer can trace each conclusion.