Preserve the case records and track the actual later immigration stages.
Do not confuse petition approval with the end of the process
Petition approval does not itself grant residence or work permission. Conditional residence follows the applicable admission or adjustment, and I-829 is filed in the 90 days before its second anniversary; retain relevant evidence rather than assume an earlier approval makes all records unnecessary.
Keep source-and-path exhibits, job evidence, tax records, bank statements, and investment communications through conditional residence and the I-829 stage. Store readable indexed copies and preserve originals where practical. A regional-center investor ordinarily starts with I-526E; a direct investor uses I-526. An investor petition may be followed by visa processing, or, if a visa is immediately available, Form I-485 may be filed concurrently; conditional residence begins only upon admission or adjustment. Form I-829 is filed in its statutory window to remove conditions. EB-5 also retains a general US$1,050,000 requirement, while qualifying targeted employment area or infrastructure projects use US$800,000; lawful funds and ten full-time jobs remain essential. Discarding records after petition approval can make later questions unnecessarily difficult.
Hypothetical example: A construction contractor from Saint-Charles-de-Bourget receives approval of an investor petition and wants to purge old project files. She instead separates permanent source records from time-limited duplicates, confirms secure access to statements from closed accounts, and calendars the conditional-residence milestones. Job reports and enterprise notices are added as received. When I-829 preparation begins, she can reconnect the contribution and immigration chronology without relying on a bank or seller to recreate years-old documents.