Ask for the paper trail
Request prior repair proposals, invoices, elevation diagrams, engineering reports, plumbing tests, warranty documents, transferable terms, and any follow-up measurements.
Separate repair history from current condition
A home can have prior foundation work and still be performing well, or it can have unresolved movement despite past repairs. Current measurements and symptoms matter.
Consider independent review
For a significant purchase decision, an independent structural engineer can help review the current condition and existing repair documentation without being the contractor selling the work.