Can I file for 140 and L1 renewal simultaneously? My L1 visa will expire in 4/2015. Can I renew my L1 after it expires?

Yes they can be filed simultaneously as they are separate types of applications. The L-1 petition relates to your nonimmigrant status while the...

You want to submit a Form I-751 Application to Remove Conditions: http://www.uscis.gov/i-751. You should have an attorney assist you with the...

What other grounds of inadmissibility are there? What are my chances?

Hiring an immigration attorney is critical, as my colleagues have pointed out. There are several grounds of inadmissibility, and you want to make...

How do I find the validity of my approved H1-B petition? I have the case number (the number that begins with WAC).

You will need the actual I-797. If lost, you can request a duplicate from USCIS. Also, if the Beneficiary left the U.S. and re-entered with the...

Can a musician on an F-1 visa (without OPT) give music performances off campus for completely free, without authorization?

You should contact an immigration attorney; however, based on your post, there should not be a problem with your voluntary performances.

I am an Indian Citizen and my to be wife is a Tanzanian citizen. Can she apply for H4 visa in India after marriage, any issues?

If you contact the U.S. Embassy in India they will be able to let you know. How Consulates and Embassies deal with "Third Country Nationals" varies.

I filled my daca renewal, I just noticed that on my initial app my lawyer had put the ss# I was using to work

I don't believe that this will be a ground to deny your renewal.

Green card medical exam normal ?

I'm not completely familiar with the exact tests that are required, but any doctor who is familiar with the process should be aware of what is...

How Parents (U.S. Citizen) can apply for permanent residency for their Married Sons and Daughters living overseas ?

In general, the first step is filing form I-130 (http://www.uscis.gov/i-130). Yes the income of the parents will eventually matter when it comes...

Can i apply for DACA if i have a valid B1B2 visa granted after june 15 2012?

There is significant information missing from your post, particularly how you were able to obtain a B1/B2 visa. Based on your brief description,...