Once the house is sold you can gift her the $200,000. A gift received is not taxable or reported on a tax return, regardless of the amount received.
You, as the giver of the gift, have to report the gift given since it is over the annual exclusion amount of $18,000 (2024). You report the gift given using IRS Form 709. TurboTax does not support form 709. The form is mailed to the IRS separate from your tax return to the IRS address shown in the Form 709 instructions. There will not be any gift taxes owed if your total of all gifts ever given in less than $13.61 million (2024).
Go to this IRS website for the Form 709 (2023) - https://www.irs.gov/forms-pubs/about-form-709
