The sale agreement, the lawyer's closing statement, quota transfer records, machinery auction remittances, and the bank records showing each amount arriving and moving on.
Build one chain per asset sold, not one chain for the sale
Hypothetical example: A dairy dispersal usually produces several distinct transactions and reviewers follow each separately. Milk quota transfers through the provincial marketing system and generates its own transfer and settlement documents. The land sale produces an agreement of purchase and sale, a statement of adjustments and a solicitor's trust ledger.
The machinery goes to auction and the auctioneer issues a settlement with commission deducted. The herd may be sold separately again. For each, show the document, the deposit into a named account on a named date, and any transfer afterwards.
Where the couple accumulated savings from farm income over decades, provide tax filings and accountant-prepared statements covering a meaningful period rather than a single year. Where the take-back mortgage is registered, include the charge document so the file explains what is not being used as well as what is. Currency conversion records complete the chain into the project account.