請教8老師 I-864

Below is excerpt from I-864 Instruction. It looks like the parent's assets can be used to meet the sponsor's income reuiement as long as the assets from parent's asset is more than the amount of 5 times of difference between sponsor's own income and 125% property guide line.  

Is any condition for parent's asset to be used for income requiremnt? If I have assets (cash, house, etc) in Canada and I will/do not live with my son (the sponsor) after immigration (I am working in anotehr state in US now, not living with my son now), can my assets, in my case, can be used to meet income requorement as descibed below? If yes, I do not need to ask a joint sponsor?

"Example of How to Use Assets: If you are petitioning for a parent and the poverty line for your household size is $22,062 and your current income is $18,062, the difference between your current income and the poverty line is $4,000. In order for assets to help you qualify, the combination of your assets, plus the assets of any household member who is signing Form I-864A, plus any available assets of the sponsored immigrant, would have to equal five times this difference (5 x $4,000). In this case, you would meet the income requirements if the net value of the assets equaled at least $20,000." (from I864 Instruction, page 10)