What groups provide advice on U.S. immigration visas for Thai spouses?

The question I want to ask such a group would be: I have been traveling for the past year so I cannot prove current income. There is a proof of income requirement for a affidavit of financial support. I also don't have the US $101,500 in assets to have the income requirement waived. I fear I may have to return to the us to work for a few months and make a quick $20k before I start the visa process.