It will take more or less one month.

N-400 denied and want to enforce I-864.

See an immigration attorney. Failure to pay child support is a very serious issue.

CRI-89 case received at local office.

No need to worry. Cases gets transferred because of workloads and available resources.

Dose using lawyer will expedite getting the green card for Iraq siv applicants?

You must find out if you have a 2 year home residence requirement. If you do, you must either fulfill it or obtain a waiver.

Is it possible to renew an expire EAD card after 10 yrs ?

You would need to file application again if you are eligible for EAD.

How long it will take to get my 10 years green card??

It will probably take you around six months to get your card.

Do any attorneys here have experience with E1/2 visas for financial services firms?

Use the "Find a Lawyer"function of this Avvo website.

Gap period - B2 expired, F1 approved

You must return home as soon as possible to avoid accruing more than 180 days of unlawful status, thereby incurring in unlawful presence bar of at...

B2 to F1

Get your I-20 as soon as possible and apply for COS to F-1.

Change of Status visitor to student

Depends on when school starts, you must obtain an i-20 from the school and then request change of status to F1..