What is the maximum time limit to enter US after getting L2 visa outside US??

You can use the L-2 visa as long as it is valid and as long as you are still married to the L-1 visa holder, who should be in the US in L-1 status

How long does it take for a premium processing petition to get an approval?

USCIS will make a final decision within 15 calendar days of receipt of the requested items in the RFE

Recently I got my new L2 visa stamped till 2020. Do I need to get new EAD or just update new petition number?

As long as your EAD was issued through the L-2 category there is no need for renewal at the time

What to do when My EAD is expired in with pending I-485?

Unfortunately there is no way to speed up the process unless you can meet the expedite criteria

H-4 EAD with future date quickly got approved. What is my current status?

Based on above facts, you are in L-1B status until Sep 15, 2018

Worked illegally after H1 visa expired, should this be declared in I-485 application?

You cannot make any misrepresentations in an immigration application to USCIS. Consider hiring an attorney to ensure the I-130 filing is properly...

Looking for immigration attorney in salt lake city ?

Have you tried Maria Isabel Cueva? See: http://www.cuevalawfirm.com/

As long as the divorce is legal and you receive a government issued divorce certificate, the US will recognize it

Urgent! Should have filed and sent I-130 & I-485 & 765 concurrently, but......

It is possible your 485 pack will get rejected but no way to know for sure until you receive it back, or alternatively you receive the receipt...

Green Card Processing Queries

It sounds like they are targeting the EB-1C category, which would require you to work with a foreign affiliate of your US employer for at least one...