My sister's business is similar to "Amazon.com", it is like a "book club". She has about 25,000 members all over China and she sells all kinds of books to them.
It will be easy for her to prepare bank statement, ID, Marriage Certificate, apartment owner certificate, her hu*****and and son's photos, etc.
Can you give me a little more details about how to prepare her business documents? I don't think she has a accountant for her business, she has a database and her members mail her money via post office then she puts them in the database developed by a software company, then she mail the books to the members.
Thanks again!