Clarify which evidence is relevant to the actual L-1A questions before preparing an extensive professional archive. Official charges and professional scope should be identified separately.
Focus preparation on the role
Ask what documents establish authority, support, employment and the company relationship. An impressive collection may not resolve those issues. Agree on necessary translation and additional work before commissioning it.
Ask the reviewer to identify which items actually relate to the qualifying foreign year and the proposed U.S. role, since material from other periods or unrelated projects may not add anything to those specific questions even when it looks impressive to a general audience rather than to the specific reviewer. Request a threshold for when collection can reasonably stop, so that gathering continues only until the relevant facts are documented rather than continuing indefinitely on the assumption that more material always helps.
Distinguish evidence that shows reputation or recognition from evidence that shows structure, authority and reporting lines, because an L-1A filing depends primarily on the latter even when the former exists in abundance and took considerable effort to assemble. Confirm which items genuinely need translation or formal evaluation before commissioning that work, since not every document in a broad collection will end up being used. Ask for a short list ranking items by relevance before spending on formatting or presentation, so effort goes toward the material most likely to matter rather than toward material chosen mainly for its appearance.