Balance Sheet cleanup help

Does anyone have suggestions for help in cleaning up a balance sheet?  I started using QuickBooks several years ago and was self-taught for my own business, so things are messy in my files.  I know what I'm doing now, but I really need to get the balance sheets cleaned up so they reflect our current business and I'm not sure how to go about it.  I would love to either hire someone or get some guidance for the three files I have.

Any ideas would be greatly appreciated.  Thanks so much!