What if my sister is on immigration hold ?

There is absolutely no way to address this without much more information. You need to consult with a Board Certified Immigration attorney...

How long should my husband wait to reenter the us on a tourist visa after being here for 6months ?

Please note you are discussing visa fraud in a public blog.

1-485 Primary Applicant + 1 dependent approved, wife pending?

It is not a good idea to rely on the online system since, first, nothing is official but the hard copy approval and/or the actual green card, and,...

Can I apply for a work permit after I did my green card interview ?

The work permit should have been filed with the original case. You can certainly file for it now but it takes six months for a decision.

I140 approval conditionx?

Unfortunately, it is difficult to understand the question. If your wife was previously in H-1 status then it may be possible to change status from...

Is it safe to change employer while waiting for i-485 approval? What are the legal compliances?

Yes you can change employers now as long as the new job is in the same occupation as your current job.

I got my work authorisation by marraige, but now i have filed for vawa and got a receipt, can i renew my drivers license while ?

As long as your EAD is valid for at least six months you should be able to extend your DL with DPS. And you must file to extend your EAD every six...

No, it is very unethical to withhold documents for payments. Not doing additional work might be justified if it does not injure the client.

Will I be out of status after old I94 expiry even though I have valid I-797?

Two answers: first, ask your immigration attorney; the attorney who represents the company also has an ethical obligation to represent you as well;...

EAD Expedite based on EB3?

Two points, first, why don't you speak with the attorney who is being paid to represent you?, and, second, if you relocate before your I-140...