QuickBooks Cleanup for CPA Prep

My QuickBooks Online file is only partially up-to-date and I need it fully cleaned and tightened before I hand everything to my CPA. The most urgent task is to reconcile every bank and credit-card account so the balances match the statements through the current month... (Budget: $15 - $25 USD, Jobs: Accounting, Bookkeeping, Data Entry, Intuit QuickBooks, MYOB, Tax Preparation)