The I-130 filing asks about employment, but not about salary. When completing the Affidavit of support, your past income number is the one called "Total Income" on your tax return. So, if your salary was say, 50k and your real estate/landlord portion lost 20k, your income would be the 30k on the total income line. It doesn't matter whether you mentioned it on the I-130. You're dealing with the affidavit of support now. Start by downloading the form, AND it's instructions, then become an A-Student of both. If you don't currently qualify, get a new job first, or get a joint sponsor. Note that liquid assets are defined in the instructions, and that your income "shortfall" will be the required income PLUS the amount of your self employment loss for 2023.