Do I have to wait on the IRS to amend my tax return before I submit my documents for a green card through marriage to USCIS?

The tax returns are necessary to establish financial resources for the I-864 and can show the commingling of assets to prove the marriage is...

OPT to H1B

There can be many issues, depending on the nature of the work you would be doing and the basis of the previous H-1B.

I want to know as a temp Residence permit holder if my wife decided to divorce me will I still be able to renew my permit?

You should discuss this case with an immigration attorney before you file for a divorce.

My question is that will the green card procedure be difficult for the first time? and what are the general queries asked by USC

This is a very general question regarding a very specific and detailed process involving many statutes and regulations. Consult with an attorney...

Form I-765 Worksheet

Category C(09) is for applicants for adjustment of status.

I-765 renewal. Part 11 I forget the dates what should I write???

You should write the city where you were residing when the previous card was approved and also check the expiring card to see the validity dates.

Possibly, although the USCIS is fairly lenient on the "economic need" requirement for DACA-based EAD.

Will USCIS consider my approval copy of I-797C (without extended I-94 deatils) for my L2-EAD extension?

You should have a copy of the extended I-94 attached to the I-797.

Does my L1B visa remain valid after I-485 gets denied, but I used my EAD for the same job and employer as the L1B?

The L-1B status should remain valid, even though the I-485 was denied, however, the reasons the I-485 was denied may have a bearing on the...

Immigrant visa interview, misrepresentation

There is some likelihood that the Consul could believe there was a misrepresentation in the previous filings.