My husband is working for an indian company. His company has sent us here in US on L1and L2. He is on L1 and i am on L2.

It seems like he is not in fact leaving the U.S. permanently if the employer is keeping the visa so he can return. If you are in valid L2 status,...

Entered the US legally on H1b and H4 visas but now out of status. Would my family and I qualify to apply for RPI?

It seems you would qualify.

Can affidavit for probable cause affect my green card process.

If it comes up, it will turn out that you admitted to committing a crime, so there is reason to believe you committed an offense. You would have...

How do I go about getting my niece from Mexico?

Her mother has legal custody until and unless the Mexican officials change that. She is welcome to apply for a copy of her birth certificate and...

Second preference is current for Bangladesh, meaning, no wait for the visa. You cannot get an F1 for an online program.

Who should apply I 130 for my DEPORTED sister? Me ( working US citizen)or mother (not working LPR)?

If she is married, only you can file. If not both of you should file. Mother is faster.

Now get my citizenship through marriage want to file for my mom been a stay home mom and student. But my husband file for me

Yes, your husband can be a joint sponsor for the affidavit of support.

What document should be enclosed with the deffered action application

He probably sent the diploma.

Can i apply a fresh l1b if i already have a valid l1b with 5 month left of my stay for 5 year completion

No, 5 years is the limit.

My one year outside USA after 7th yr of H1B completes on mid Sep 2013.. Have jobs openings ready to hire me on a new H1B visa.

There are no more H1b visas for this year, the soonest you can come is October 2014.