回复：pjiang老师，太感谢您！--继续问。。。

1. H4这两年期间的共计10个月的收入对主申请人和本人的绿卡申请有什么影响？
- What form did employer send you?
---什么税表都没有收到。
- If you did not receive any form, and the business partner does not know your SSN, I may assume it wasn't reported to IRS.

Although you were regarded as a contractor, you do not have established your business. The past business activity, illegal though, is not on any records as I can see.

For sure, you need to figure out under what category the payer made the payment to you, like general business costs or what.