H1B transfer - Frequencies & Must I have the receipt to begin with the employment?

It is safe to wait to work for the new employer until the new employer received the receipt notice.

Green Card.

Also, if you are absent from the U.S. for one year or more without a reentry permit, you may be considered that you have abandoned your permanent...

My employer filled my PERM in Dec 2012. Could you tell me which month is DOL currently processing for PERM filing?

11/14/2012. http://icert.doleta.gov/

H1B Amendment or LCA required? Immigration attorney required?

I agree with my colleagues. Damage has already been done to to your case. Your employer should have filed a new LCA and an amendment application...

Which kind of financial support has my sponsor submit in a RFE about a COS J1 to F1?

It will be difficult to answer your questions without reviewing your case and the RFE. Please retain an attorney to work on your case.

How long can I stay?

You need to check the date on your I-94. You can stay in the U.S. until your I-94 expire.

H1B Extension Question

You need to discuss the matter with the employer's attorney.

Am green card holder since January 2011, can I bring my wife and my child to USA ? and how ?

It probably takes several years to bring your spouse and child to the U.S. You have to file Form I-130 to USCIS. Please read the form instruction...

Risk in using 245 (k), when I 94 was expired more than 180 days with H1B denial.

I agree with my colleague. Please retain an attorney to review her case.

If you have not mailed it to USCIS, he should just retake the pictures.