You will need all your normal Form W-2s related to employment and 1099s related to investment income.
Your house closing documents should include a Settlement Statement. This document may show Property Taxes and/or mortgage interest that you paid in connection with the closing.
It will be really helpful if both of you have a copy of your 2021 tax returns. There may be carryovers on one of the 2021 tax returns that have an impact on the 2022 joint return (for example, a capital loss carryover).
