You do not need every document before contacting an attorney. A short and accurate timeline is often more useful than a large stack of unsorted files.
Write a one-page timeline
List dates, events, participants, related documents and the next known deadline. Mark uncertain facts as uncertain rather than filling gaps with guesses.
Organize by source
Separate court or agency papers, contracts, payment records, photos, medical files and messages. Preserve originals and name copies clearly.
List your three most important questions
For example: What is the most urgent deadline? What are the realistic options? What are the main risks and likely scope of each path?