Your attorney will want your most recent tax returns, pay stubs, bank account statements, retirement account statements, and credit card statements, as well as documents showing other assets and liabilities, such as the amount of your monthly mortgage payment and what the mortgage balance is, investment account statements, stock option awards, inherited assets, and information about any family business, if applicable.
Georgia law requires that each spouse prepare a Domestic Relations Financial Affidavit, and your attorney will provide you with that form, probably at the initial consultation.