Timing depends on petition adjudication times, which vary by category and are published by USCIS, plus visa availability for the applicable category and the family's country of chargeability, and there is no single processing time that applies to every EB-5 case.
Plan around published processing data and visa-availability charts, not anecdotes
Check current USCIS processing time data for the relevant EB-5 petition type and the visa bulletin for the applicable category and country of chargeability, and revisit both periodically rather than relying on a one-time estimate, since both can change materially over a multi-year case.
Make a timeline with distinct stages: source collection, project diligence, investor petition, any applicable visa or adjustment process, conditional residence, and the conditions-removal filing. The stages do not move at the same pace, and approval of one does not automatically complete the next. Hypothetical example: A wind-turbine maintenance business owner expects to sell equipment after filing and use the proceeds for later documentation. If the source evidence depends on that sale, waiting can create a record gap at the stage where funds must already be explained. Calendar the I-829 window well before the second conditional-residence anniversary; it is generally filed in the ninety days immediately preceding that anniversary. Keep project updates and personal status records during the full conditional period.
Preserve evidence continuously rather than trying to recreate it near the conditions-removal stage. Project reports, capital records, residence documents, and family-status updates are easiest to collect when generated. A calendar reminder should prompt periodic file maintenance, not only a final rush before filing.