1. You will do an amended return. I recommend you wait. The casualty loss is filed on Form 4684 and allows the lower of basis or FMV decline minus reimbursements. Until the money is in your hand, the amount can change. See Publication 584, Casualty, Disaster, and Theft Loss Workbook (Personal-Use Property)
2. The rental house is not personal use property. I assume it is passive income but it could be your business. See the rules here. Amending may not affect your rental at all. You won't be able to enter 2024 rental expenses on your 2023 rental return.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"