Missing historical statements, unexplained company payments and inconsistent tax records can create preparation dependencies. Obtaining those records may matter more than how quickly the final investment transfer can be made.
Begin with the hardest years
Ask counsel to identify the required historical scope, then request older records and clarify irregular deposits first. Continue project and family review while institutions respond. Preserve genuine corrections and explanations rather than changing descriptions to fit a preferred narrative.
Once the source file is ready, petition review and visa availability still determine later stages independently. Begin with the hardest years rather than the most recent ones, since the oldest records are the ones most likely to be unavailable and they set the overall timeline. Identify which institutions held the accounts in the earliest part of the period, whether they still exist, and what they can produce.
Make those requests first and track each with a date. The same applies to former employers and to tax records held by an authority with its own retention practice. Recent years are generally straightforward and can be assembled at any point.
Where an early year proves undocumentable, take advice on how the gap is best addressed rather than leaving it or filling it with something else, and do so while there is still time to pursue an alternative source of the same information.