If i am unemployed with $80,000 assets, and wanted to sponsor my Nigerian wife can I do it?

If the I-864 is for a spouse, then assets value will by 1/3 Value. Meaning, if the assets value $300,000, then the US Government will value it at $100,000 for I-864 purposes. If the I-864 is for someone other than a spouse, then assets value will by 1/5 Value. Meaning, if the assets value $250,000, then the US Government will value it at $50,000 for I-864 purposes. So if only you and your wife will be living together in one household when she arrives in the United States, then since the income that is required is roughly $21,775 for a household of two people, then that would be met because if you divide by three the total assets that you have of $80,000, that would equal $24,000. And would put you right over the line to qualify based on your assets. Now keep in mind it is always a good idea to engage a joint sponsor in your case To maximize the possibility that scrutiny by the immigration department will be avoided.