I know they prefer income to assets generally, so I just thought of something: I (the foreign spouse) have a side-job writing for a specialist magazine. I can do this from anywhere, as I simply submit my monthly article via email, and sometimes review a few books for an additional fee. It's not enough to live on but it would be a significant junk of the money needed for the affidavit of support (about 14'000 dollars a year, depending on exchange rate). From what I understand, the foreign spouse' income can be taken into account as long as s/he lives in the same household as the USC and as long as the income will continue after the move to the US- we qualify on both counts. However, I have no contract- I do this on a freelance basis. I am sure I could get the magazine's editor to write me a letter saying how much I make a month and that this is likely to continue for the forseeable future though (I have been doing this for years and they are very happy with me).
Do you think this would count?