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文章有出处,讨论有根据,你可以直接参见房利美的材料
https://selling-guide.fanniemae.com/Selling-Guide/Origination-thru-Closing/Subpart-B3-Underwriting-Borrowers/Chapter-B3-3-Income-Assessment/Section-B3-3-1-Employment-and-Other-Sources-of-Income/1035647451/B3-3-1-09-Other-Sources-of-Income-05-04-2022.htm