@cmercure
As you're aware there is not going to be a quick fix. I would suggest using the QB Desktop version if you have access to it and that is what has been used historically. This will seem less daunting as you go.
I assume this was a sole proprietorship? Do you have access to all of the business bank statements? How about personal bank statements?
I would suggest starting with the deposits shown on the business bank statements and match those to outstanding invoices as best you can. Then, you can see what deposits don't have invoices and what invoices don't have deposits and use that to see if any deposits in the personal account can be matched to outstanding invoices in QB. For payments deposited into the personal account, you can set up a personal bank account in QB for those deposits (to serve as a clearing account) and eventually close that account to the owner's draws equity account.
When you say the beginning bank balance is wrong, are you referring to the Jan. 1, 2021 balance or ???
